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FAQ | Can you paint E Series loudspeakers?
Published May 30th, 2024 by Steve Gallagher
Answer Yes, the cabinet and grille of E Series loudspeaker can be painted. Note The grille foam will need to be removed or covered before paining. QSC does not sell the foam insert separate from the grille assembly.
FAQ | How many K.2 speakers can be connected to a single circuit?
Published November 26th, 2024 by Steve Gallagher
Answer The K.2 Series models feature a 2000-watt class D module with that are very efficient at AC draw or consumption. That means you can run multiple K.2 loudspeakers off a single 15 or 20-amp AC circuit. No need for a special (and expensive) AC power distribution to run the PA. Use the chart below to view typical power draws for K.2 speakers. Vol
FAQ | After setting up my loudspeaker array, how do I apply the correct Ar-Q™ Array Equalization settings for my deployment?
Published August 28th, 2023 by Steve Gallagher
Answer The user may apply Ar-Q™ Array Equalization filters by selecting “Optimize Array” via the Rear User Interface (RUI) located on the rear panel of the LA108/LA112 loudspeakers. Simply press and hold the Rear User Interface (RUI) rotating encoder on any loudspeaker in the array for approximately 3 seconds. The QSC AWARE™ technology will sense th
Quick Tip | Stereo Panning: Using the TouchMix for Broadcast Mixing
Published September 11th, 2024 by Steve Gallagher
Today's Lesson Learn how to pan your channels left/center/right for stereo applications like broadcast mixing using the TouchMix. In this video Golden shows how she uses stereo panning for a broadcast mix of Gordan Goodwin's Big Phat Band. For more lessons and videos, see our QSC YouTube page.
FAQ | Can I use KLA12 and LA112 loudspeakers together in the same array?
Published August 28th, 2023 by Steve Gallagher
Answer No. The rigging hardware is incompatible.
FAQ | What are the Dante®/Network EtherCON ports for on the LA108/LA112?
Published August 28th, 2023 by Steve Gallagher
Answer The dual EtherCON ports can be connected to a local area network (LAN), over which remote control and monitoring of the loudspeaker(s) is available via the local area network using the QSC SysNav™ (System Navigator) app. Additionally, uncompressed digital audio can be received using the Dante audio-over-IP protocol.
FAQ | The KLA12 loudspeaker had an 18° vertical coverage angle, while the LA108/LA112 feature a 15° vertical coverage angle. Does that mean the KLA12 covers more audience area than the LA108/LA112?
Published August 28th, 2023 by Steve Gallagher
Answer Yes. However, maximum vertical coverage is not always the most desirable attribute of a line array system. The decreased vertical coverage of the LA108/LA112 loudspeakers combined with more splay-angle options than the KLA12 allows an array to be better tailored to meet the needs of varying coverage requirements.
FAQ | Who should I contact for more information about the warranty of my QSC Audio product?
Published December 19th, 2024 by Steve Gallagher
Answer For additional information, please contact your regional customer care or sales representative.
FAQ | Is there a fuse I can replace on my K.2 Series Louspeaker?
Published October 11th, 2024 by Steve Gallagher
Answer No. The K.2 Series Loudspeakers do not have a user replaceable fuse. Any repairs must be performed by a QSC Authorized Service Partner.
Training | TouchMix Series Digital Mixers
Published June 13th, 2024 by Steve Gallagher
Information QSC has several training videos available for TouchMix Series Digital Mixers. Please see the info below to get started on your product. QSC TouchMix Training TouchMix Training 01: Mixer Navigation Summary QSC TouchMix Training 01 Mixer Navigation focuses on basic TouchMix layout and operation of the mixer's touchscreen and master wheel.
FAQ | Where can I find warranty information about QSC products?
Published May 10th, 2024 by Steve Gallagher
Answer Information regarding QSC product warranties can be found in our Warranty Statement page. If you have questions or concerns regarding the warranty information, please Create a Case or contact our support team.
FAQ | What is the purpose of the infrared (IR) transmitter/receiver on the top/bottom of each LA108/LA112 loudspeaker’s grille?
Published August 28th, 2023 by Steve Gallagher
Answer The IR transmitter/receiver provides a communication link between members of an array whether or not an Ethernet connection is used. This enables QSC AWARE™ to determine the number of loudspeakers in the array, as well as the location of each array member and its splay angle. It is from this data that AWARE can determine what Ar-Q™ Array Equa
Sound Advice | Loudspeaker placement part 7: Using delayed loudspeakers
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Any time you place loudspeakers at different distances from the audience, either vertically or horizontally, you will need to delay the loudspeakers that are closer to the audience so that their arrival time at the listener is consistent with the sound coming from the main loudspeakers. If you don’t, the audio from the closer loudspea
Training | L Class Active Loudspeakers
Published June 13th, 2024 by Steve Gallagher
Information QSC has several training videos available for L Class Active Loudspeakers. Please see the info below to get started on your product. L Class Training Series L Class Training Series 1: Introduction Summary In this introduction you'll get an overview of the L Class Active Line Array system with brief explanations of the product highlights
Quick Tip | TouchMix User Button: Setting Faders to 0 dB or Unity Gain
Published September 11th, 2024 by Steve Gallagher
Today's Lesson Learn how to set up a User Button on the TouchMix to quickly bring your fader or faders to 0 dB or unity gain. This function comes in handy if you need to quickly reset a fader to Unity position. An example of when this is helpful is if you’re setting up an Aux output to mirror the main mix. To do this, set the Aux pick off point to “
Sound Advice | Loudspeaker placement part 5: Reflective surfaces
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Acoustically reflective surfaces are any such surface that sound waves physically bounce off of when they come in contact with them, which can create some acoustic challenges in a live sound environment where a PA system is involved. In general, it is rare to find rooms that are acoustically dead or heavily damped. On the contrary, it
Sound Advice | How to avoid comb filtering part 4: Multiple loudspeakers
Published May 16th, 2024 by Steve Gallagher
Today's Lesson One big way comb filtering can be created is by using multiple loudspeakers. In stereophonic reproduction, left and right loudspeakers are placed equidistant from each other. Both direct sounds will reach the listening position and your ears at the same time with all frequencies perfectly in phase. No comb filtering will happen. Howe
FAQ | Can the L Class line array speakers be used in an open area?
Published October 10th, 2024 by Steve Gallagher
Answer Yes. Download QSC System Navigator, and utilize our AIM function to demonstrate how a line array could work in your setting.
FAQ | What happens to the warranty if the QSC Audio product is sold to a new owner?
Published December 19th, 2024 by Steve Gallagher
Answer The warranty will continue to follow the product based on its serial number, regardless of the owner.
FAQ | Does QSC offer any recommendations regarding a ratio of LS118 subwoofers to LA108/LA112 loudspeakers?
Published August 28th, 2023 by Steve Gallagher
Answer QSC strongly encourages you to use LS118, KS118 or KS212C subwoofer(s) together with LA108/LA112 loudspeakers. The determination of the subwoofer count depends on a number of factors including acoustics of the performance venue, whether it is indoors or outdoors, program content and sound pressure level expectations. A recommended starting po
FAQ | What is the best way to carry the KC12S subwoofer?
Published March 10th, 2025 by Steve Gallagher
Answer The KC12S subwoofer features a large handle on the enclosure top and two grips on the bottom, allowing you to easily carry the enclosure with both hands for safe transportation.
FAQ | Is it safe to disassemble the column pole (KC-SP32) and the KC12T Mid/HF unit while the KC12 loudspeaker system is powered on and functioning?
Published March 10th, 2025 by Steve Gallagher
Answer QSC recommends to systematically turn off the power on the KC12 loudspeaker system before assembling or disassembling it. However, if the KC12 loudspeaker system happens to be assembled/disassembled while still powered on, no damage will occur to the product.
Sound Advice | Calculating power consumption of your gear
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Before you start plugging things in at a venue, it’s good to know how much power you gear needs so you can use the available power appropriately and avoid overloading circuits when you turn everything on. The power consumption for most devices is listed on the device itself, usually close to where the power cable is connected. If it i
FAQ | Where can I find compliance information for the KS Series Subwoofers?
Published July 30th, 2024 by Steve Gallagher
Answer Compliance documents for the KS Series Subwoofers can be found on the product pages below: KS112 KS212C KS118
Sound Advice | Unbalanced stereo cables
Published May 16th, 2024 by Steve Gallagher
Today's Lesson A common misconception with balanced cables is that balanced is synonymous with stereo. A balanced cable carries two signals along with a ground wire, so one could possibly assume that the two signals are a left and a right. This is fundamentally incorrect. To recap Sound Advice | Balanced Cables, a balanced cable consists of a hot an
FAQ | Where can I find the TouchMix Series User Manual?
Published November 25th, 2024 by Steve Gallagher
Answer You can find the TouchMix Series user manual attached to this article, or on the TouchMix Series product pages of the QSC website.
FAQ | If there is no Dante® network redundancy on the LA108/LA112, what other fail over is supported?
Published August 28th, 2023 by Steve Gallagher
Answer For mission-critical events (live broadcasts, etc.) it is possible to connect both Analog and Dante signals simultaneously where Dante audio is the primary source and the analog audio is the secondary source or “backup”. In this scenario, the analog source must remain muted, but can be manually unmuted in the event of a network failure.
Sound Advice | Proper microphone placement to avoid feedback
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Proper mic placement is a simple thing that can give you a big head-start in eliminate and controlling feedback on a live stage. For starters, you always want to set up your main PA loudspeakers in front of your performance area and most importantly, your microphones. Anytime you have a microphone pointed directly at a loudspeaker fe
Update | Impact to User Data when updating L Class loudspeaker firmware
Published September 14th, 2023 by Steve Gallagher
Affected Products Hardware Model/Series L Class - LA108, LA112 Active Line Array Loudspeakers Software SysNav Previous: 1.1.0026 - NEW: 1.2.0048 L Class firmware Previous: 1.1.0033 - NEW: 1.1.0068 Important Information This application note is to inform users that settings will be reset back to factory default during the loudspeaker firmware update
Error / Status | KW Series LED Indicator Definitions
Published May 14th, 2024 by Steve Gallagher
Affected Products Hardware Model/Series KW Series Powered Loudspeakers Software Message The K.2 Series Powered Loudspeaker have several LED indicators to show statuses for the unit. KW122, KW152, KW153 KW181 Definition The tables below defines the statuses for each indicator on the KW Series powered loudspeakers. KW122, KW152, KW153 LED Indicator
FAQ | How many LA108/LA112 loudspeakers can I deploy on a pole over a subwoofer?
Published August 25th, 2023 by Steve Gallagher
Answer Using QSC loudspeaker 26-inch or 36-inch poles (SP-26 or SP-36) with QSC LS118/KS118 subwoofers, up to three LA108, or two LA112 may be safely deployed. Caution When using other pole types and/or subwoofer models, always make sure to follow the manufacturers' recommendations for loudspeaker stand deployment in the respective product User Manu
Factory Reset | K.2 Series loudspeakers
Published May 15th, 2024 by Steve Gallagher
Procedure Use the following steps to reset K.2 Series loudspeaker to factory default settings: Navigate to Settings in the speaker menu. Go to Factory Reset. Confirm reset. Wait for reset to complete. Caution Resets all parameters to the factory defaults and clears user presets. This cannot be undone.
FAQ | Can I change the angle, or tilt the KC12T mid/HR unit?
Published March 10th, 2025 by Steve Gallagher
Answer No the KC12T Mid/HF unit is set at a fixed angle providing an overall vertical coverage of 35° (+7.5° and-27.5°). However, if you need to set the coverage area closer to the loudspeaker, you can assemble the KC12 system without its column pole (KC-SP32), for cases where the loudspeaker is on a raised stage or platform.
Sound Advice | Setting up a stage: Running audio cables for you PA
Published May 16th, 2024 by Steve Gallagher
Today's Lesson It’s time to run audio connections for a show. Start by running XLR cables from the main Left and Right outputs of the mixer to our subwoofers on the right and left side. Then run other XLR cables from the output of each subwoofer to the loudspeakers above. If a single sub is used, use this same process on the side with the subwoofer
Sound Advice | Loudspeaker placement part 4: Room size and acoustics
Published May 16th, 2024 by Steve Gallagher
Today's Lesson When setting up your sound system indoors, it’s wise to consider the size and the acoustics of the space you will be using. Depending on the shape and size of the venue, you may be faced with certain acoustic challenges. For instance, smaller rooms often exhibit strong, unpleasant midrange to low-mid resonances due to the room’s phys
Error / Status | “The file operation could not be completed. Please ensure the external drive is a writable FAT32 drive with sufficient space."
Published November 22nd, 2023 by Steve Gallagher
Affected Products Hardware Model/Series TouchMix-30 Software Control App: 3.0.22 Firmware: 3.0.12462 Hardware Model/Series TouchMix-8/16 Software Control App: 3.0.26 Firmware: 3.0.09555 Message After updating TouchMix-30 Control App to version 3.0.22, there is a pop-up: “The file operation could not be completed. Please ensure the external drive is
FAQ | What are the benefits of the QSC LEAF™ Waveguide on the KC12?
Published March 10th, 2025 by Steve Gallagher
Answer The innovative QSC LEAF™ (Length-Equalized Acoustic Flare) waveguide provides defined, uniform coverage and exceptional throw allowing for consistent high-frequency reproduction, even in large venues and for distant audience, resulting in natural-sounding high frequency reproduction and impressive vocal clarity.
FAQ | Where do I get my QSC gear repaired?
Published June 6th, 2024 by Steve Gallagher
Answer QSC offers two options for product repair: Drop off your product at a QSC Authorized Service Center near you. Ship your product to QSC for Factory Service. You may request a Return Merchandise Authorization by clicking here. International customers should contact their Local QSC Distributor. For more information, see the QSC Product Repair pa
FAQ | What happens to the warranty status if a QSC Audio product was not registered by the original owner?
Published December 19th, 2024 by Steve Gallagher
Answer If the product was not registered, the warranty defaults to the serial number and is based on the manufacture date.
Error / Status | CP Series LED Indicator Definitions
Published May 13th, 2024 by Steve Gallagher
Affected Products Hardware Model/Series CP Series Powered Loudspeakers Software Message The CP Series Powered Loudspeaker have several LED indicators to show statuses for the unit. Definition The table below defines the statuses for each indicator on the CP Series powered loudspeakers. LED Indicator (see image above) Status 1 - Input A Sig LED Wh
Quick Tip | TouchMix User Button: Quick Screen Navigation
Published August 30th, 2024 by Steve Gallagher
Today's Lesson Watch the video below to set up User Buttons for quick screen navigation on your TouchMix. For more lessons and videos, see our QSC YouTube page.
FAQ | Can I stream audio via Bluetooth to more than one KC12 loudspeaker at a time?
Published March 10th, 2025 by Steve Gallagher
Answer Yes! Each KC12 system supports connections up to four (4) loudspeakers via Bluetooth linking and supports running them as Left, Right, or Mono loudspeakers.
FAQ | Which power amplifier is best for my loudspeakers?
Published May 17th, 2024 by Steve Gallagher
Answer To achieve the best audio performance from your live sound reinforcement loudspeakers, QSC recommends that you power them with a matching power amplifier that is rated at least twice the loudspeaker’s continuous power rating, or equal to the loudspeaker’s program power rating. To help find the right amp for your needs, click here for our Ampl
Sound Advice | Using a dedicated monitor mixer
Published May 16th, 2024 by Steve Gallagher
Today's Lesson The TouchMix 30-Pro is more than capable of handling FOH and monitors at the same time. But sometimes there are situations when having two separate mixers is beneficial. When mixing monitors from the same mixer as FOH, input channel processing like EQ, compression, noise gates and FX, will be shared between the FOH mix and the monitor
Troubleshooting | My TouchMix-30 Pro shows ‘Unknown Device’ in the Device List under Remote Control Settings
Published November 22nd, 2023 by Steve Gallagher
Affected Products Hardware Model/Series TouchMix-30 Software Control App: 3.0.22 Firmware: 3.0.12462 Problem TouchMix-30 Pro shows ‘Unknown Device’ in the Device List under Remote Control Settings. Causes This is often an indication that you connected to the TouchMix Control Network before naming your device in the app. Complete the procedure below.
FAQ: Can TouchMix series mixers integrate directly with Q-SYS?
Published April 20th, 2023 by Steve Gallagher
No. Other than analog audio connections, direct control of a TouchMix mixer from Q-SYS (and vice versa) is not possible.
Sound Advice | Broadcast mixing tips: The importance of microphones
Published May 16th, 2024 by Steve Gallagher
Today's Lesson When it comes to capturing all audio sources for a broadcast mix, the rule to follow is; if you want it to be heard, Mic it or plug it in. That’s right, mic each drum element, percussion, electric guitar amp, acoustic piano, every horn and anything that can be plugged in through a direct box, like bass, acoustic guitars and keys. Micr
Quick Tip | TouchMix: USB Drive Formatting
Published August 30th, 2024 by Steve Gallagher
Today's Lesson Use the steps and video to format a USB drive for use with a TouchMix mixer. Connect USB drive to mixer. Navigate to the Recording screen. Press Record Setup. Press Format USB in the lower right-hand corner of the screen. For more lessons and videos, see our QSC YouTube page.
FAQ | Do the GX Series amplifiers have Universal Power Supplies?
Published April 26th, 2023 by Steve Gallagher
Answer GX Series amplifiers do not have Universal Power Supplies.These units must be ordered and configured for the region they will be used in. Example: North America 120v , United Kingdom 230v, Japan 100v
FAQ | Does the TouchMix-16 have a RJ45 Accessory Jack or. K-Lock Security Slot?
Published May 8th, 2023 by Steve Gallagher
Answer TouchMix-16s manufactured in December 2017 or earlier included an Accessory RJ45 connector (ethernet type) on the rear panel. The RJ45 connector was never utilized and was replaced with the K-Lock. Mixers built in January 2018 or later include the K-Lock security feature.
Quick Tip | TouchMix User Button: Fader Select
Published August 30th, 2024 by Steve Gallagher
Today's Lesson Open the User Button setup screen. Select the desired User button to set up. Select Option. Choose the type of fader. Choose the specific fader for the button to select. For more lessons and videos, see our QSC YouTube page.
FAQ | Does QSC have a laptop version of the TouchMix-30 Control App?
Published March 17th, 2025 by Steve Gallagher
Answer No, however some TouchMix-30 users have had success with app emulators on their computers. Note QSC has not tested or verified this use case.
Sound Advice | Setting up a stage: Connect you PA to power
Published May 16th, 2024 by Steve Gallagher
Today's Lesson OK. You have your PA and monitors set up on stage. Let’s plug them in! Well start with the subwoofers and then the top left and right loudspeakers, connecting these components to the closest available power drops. Now let’s get the monitors plugged in as well, again using the closest available power drops. In an ideal setup, the power
FAQ | How many KW speakers can be connected to a single circuit?
Published November 26th, 2024 by Steve Gallagher
Answer The KW Series models feature a 1000-watt class D module with that are very efficient at AC draw or consumption. That means you can run multiple KW loudspeakers off a single 15 or 20-amp AC circuit. No need for a special (and expensive) AC power distribution to run the PA. Use the chart below to view typical power draws for KW speakers. Voltag
FAQ | What size hard drive do I need for recording on my TouchMix?
Published November 25th, 2024 by Steve Gallagher
Answer To determine the space required for your recording, the following should be considered: All TouchMix models are capable of recording all audio inputs plus a stereo mix directly to a USB hard-drive. The audio is captured as a 32-bit, floating point wave file. Recording and Playback Capacity TouchMix-30 Pro: 32 tracks (30 inputs + stereo mix)
FAQ | What drives are supported for recording on TouchMix Series Mixers?
Published November 25th, 2024 by Steve Gallagher
Answer As there are far too many hard-drives available to test them all, the specifications below should ensure stability with TouchMix mixers. FAT32 format is required (must be formatted on the TouchMix for proper operation). Power draw 500 mA or less. 2 TB or less capacity. USB 2.0 compatible. Higher speed drives (>7200 RPM) tend to work best.
How To | Copying TouchMix channel settings to different scenes
Published March 1st, 2024 by Steve Gallagher
Procedure Use the following steps for copying TouchMix channel settings to different scenes: Copy and Paste is context sensitive so that what you are looking at is what will be copied. Only like things may be copied and pasted from and to each other. For example, a PEQ cannot be pasted to a GEQ. The table below explains what parameters will be copie
FAQ | Can I use the LA108/LA112 in vertical orientation (enclosure placed on its side) for stage side-fills, for example?
Published August 28th, 2023 by Steve Gallagher
Answer Yes, the LA108/LA112 enclosures can also be deployed as a horizontal ground-stacked array when flipped onto their sides. Rubber feet located on the enclosure’s side ensure the endcaps are not scuffed up when the enclosure is deployed in an horizontal array configuration. The rear panel features also an arrow indicating the location of the hig
Sound Advice | Setting up a stage: Main left and right loudspeaker placement
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let’s talk about setting up speakers for a main PA. If you’re using subwoofers, get those setup first. If your subs are setup let’s get the rest of the PA going. Mounting the speakers directly above the subs using poles is a great option and very common. Simply screw your poles into the subs and place your main speakers on top. Done!
FAQ | Can the rigging hardware of the LA108 connect to the LA112?
Published August 28th, 2023 by Steve Gallagher
Answer No. The width of the LA108 does not match the width of the LA112 enclosure. Therefore, they cannot be deployed or rigged in the same array.
Quick Tip | K.2 Series Menu Navigation
Published August 30th, 2024 by Steve Gallagher
Today's Lesson Let’s take a quick look at navigating a K.2 loudspeaker. You’ve got your LCD screen, your encoder wheel, you select button and a back button. Turn the wheel to navigate the menu by scroll through the available options on the menu screen. Once you land on the desired option, press the select button to select it. Menu Options Presets C
Sound Advice | EQ Tips - Frequency masking and how to avoid it
Published May 16th, 2024 by Steve Gallagher
Today's Lesson A common problem that occurs in so many mixes is what’s called frequency masking. A sound person wants a heavy bass sound and boosts the bass, lows and low-mids everywhere in the mix thereby masking so many of the high frequency sounds that make a mix intelligible. On the other hand, another common problem is the sound person that boo
FAQ | Can I connect to my L Class loudspeaker array with an analog cable and then pass the signal through the rest of the array using RJ45 network cables?
Published August 28th, 2023 by Steve Gallagher
Answer No. The ethernet ports on L Class models do not include a Dante® transmitter.
Sound Advice | How to multitrack record multiple bands using TouchMix
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Here's how to easily multi-track a multiband event using the TouchMix. Plug in a hard drive. Format to Fat 32 Create different recording sessions. One for each band Arm all of your channels to record. Make sure input gain is set to a healthy recording level. Recall the session for the first band. Hit record After each band stop the r
Training | CP Series Powered Loudspeakers
Published June 14th, 2024 by Steve Gallagher
Information QSC has several training videos available for CP Series Powered Loudspeakers. Please see the info below to get started on your product. Tech Talk: CP Series Compact Powered Loudspeakers Overview Summary In this video, you will learn about the many features and benefits of CP Series loudspeakers. Tech Talk: Using CP Series as a Floor
Training | K.2 Series Loudspeakers
Published June 13th, 2024 by Steve Gallagher
Information QSC has several training videos available for K.2 Series Loudspeakers. Please see the info below to get started on your product. K.2 Series Training K.2 Series Loudspeakers: Deployments Summary Learn about the different ways you can deploy a K.2 Series Loudspeaker (K8.2, K10.2, K12.2): Pole mount, Yoke mount and floor monitor. Tech T
FAQ | Where do I find firmware updates for my TouchMix?
Published June 4th, 2024 by Steve Gallagher
Answer Updates for the TouchMix Series mixers can be downloaded from the TouchMix Firmware and Control App page. You will also find instructions and release notes regarding the updates on that page.
Sound Advice | Setting up a stage: Mixing console placement
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let’s talk about your mixing console at a live show. If you’re providing your own mixer, how do you know where to set it up? The answer is that which is most appropriate for the room you are in. It could be on the side of the stage, or even the back of the stage. It could be off in a corner, or perhaps you have a dedicated front-of-ho
FAQ | Where do I check my support case status?
Published October 10th, 2024 by Steve Gallagher
Answer Cases are updated in the QSC Support Portal. Login with your QSC ID and you can see your current status and message your assigned support tech as needed.
Sound Advice | How to eliminate feedback with EQ
Published May 16th, 2024 by Steve Gallagher
Today's Lesson EQ can be a powerful tool when it comes to eliminating feedback. Here are a few quick eq tips that can help cut down on feedback when you need them. Start by applying a low cut filter on all of your microphones. This alone will stabilize your mix and clean up unwanted mud. From there if needed you can use the sweep-able mid EQ filters
FAQ | How can I directly stream audio from a PC to MP-M Series mixers?
Published April 26th, 2023 by Steve Gallagher
Answer While the MP-M Series is not compatible with network audio protocols (URL, AES67/Dante, etc.), the methods below may be used to transport audio to the mixer. Direct from the PC headphone out or sound card out wired to the mixer input From a USB audio sound card A Bluetooth RX/TX device wired to the mixer inputs
FAQ | What is the Patch Matrix on TouchMix Series Mixers?
Published November 27th, 2024 by Steve Gallagher
Answer The patch matrix allows a physical, analog input to be routed to a channel other than the one it is assigned to by default. This may be useful to rearrange the mixer’s layout. Let’s say you’ve got audio coming from video gear and you want to use the mixer’s line inputs (25, 26, 27, 28) because they can accommodate the high signal levels that
FAQ | Can I use L Class models in applications where they may be exposed to rain or other sources of moisture?
Published August 28th, 2023 by Steve Gallagher
Answer When LA108/LA112 loudspeakers are used in a temporary application, where rain or exposure to moisture is a possibility, the TWS-IO (Temporary Weather Shield) is recommended, which protects the unit‘s In/Out connectors. For the LS118 subwoofer, used in the same conditions, a different accessory is available and recommended, the TWS-AMP (Tempor
FAQ | How can I connect a computer to a KC12 system to install firmware updates?
Published March 10th, 2025 by Steve Gallagher
Answer A computer can be connected to the USB-C port on the rear panel. Please refer to the firmware update instructions available under www.qscaudio.com/kc12.
FAQ | How many KC12 loudspeakers can I daisy-chain using the Mix Output?
Published March 10th, 2025 by Steve Gallagher
Answer There is no limit to the number of KC12 units that can be daisy-chained using Mix Outputs.
Sound Advice | Controlling stage volume - Mic the guitar amps
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Keeping the overall stage volume down is very helpful when controlling your monitor volume. One thing we can do here is to keep any guitar cabinets on stage at low volume. The cabinet itself should only serve to produce the sound of the guitar. It should not be the source that the audience or the band members hear the guitar from, at
Sound Advice | Proper gain structure to avoid feedback
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let's have a quick little discussion about gain and signal. Every microphone that comes into your mixing console needs to be adjusted for an input gain appropriate for the audio source it is capturing. Sources that are very quiet may require a more sensitive microphone to be used or higher preamp gain settings at the mixing console. I
Sound Advice | Setting up a stage: Subwoofer placement
Published May 16th, 2024 by Steve Gallagher
Today's Lesson If you’ve already run power on the stage, the next logical step is to get your PA speakers up. If you’re using subs, those should go first. It’s best to place the subwoofers in front of the stage or performance area to reduce feedback from the microphones. In a two subwoofer setup, place them on either side of the stage, making sure
Troubleshooting | L Class showing a black screen on the Rear User Interface (RUI)
Published September 6th, 2023 by Steve Gallagher
Affected Products Hardware Model/Series L Class - LA108, LA112 Active Line Array Loudspeakers Software Firmware 1.1.0033 Problem In very rare circumstances, when powering up the LA108 or LA112 loudspeakers, the unit will not boot properly and will display a black screen on the RUI. The loudspeaker will show a blue LED power indicator on the rear, ho
FAQ | Can you enlist remote monitoring and management for fixed installations if you integrate L Class line array with the Q-SYS Platform and Q-SYS Reflect?
Published August 28th, 2023 by Steve Gallagher
Answer Yes. In upcoming Q-SYS Designer Software select the L Class component from your Inventory and add it to the Schematic. This allows you to control and monitor each device. However, firmware updates will still be managed in QSC SysNav™ App and Dante subscriptions will need to be managed in SysNav or via Dante Controllers.
Update | TouchMix-30 iOS App 3.0.22 Update Procedure
Published November 22nd, 2023 by Steve Gallagher
Important Information This is a guide to assist in the transition from TouchMix-30 Pro iOS App 3.0.19 to 3.0.22. Requirements Recommended TouchMix-30 Pro Firmware: 3.0.12462 Recommended iPad Device Software: iOS 17.1 or later Preparation Please make sure that your iPad or iPhone is updated to iOS 17.1 or later for optimal operation. Prepare your wi
Sound Advice | Parametric EQ Explained
Published May 16th, 2024 by Steve Gallagher
Today's Lesson The parametric EQ is a mainstay of recording and live sound because it offers continuous control over the audio signal’s frequency content. The parametric EQ on an input channel of a TouchMix has 4 parametric filters. When selecting a filter, the gain control for that filter is automatically highlighted. When selected, you can use the
Sound Advice | Microphone techniques to avoid feedback
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let's talk about proper mic technique. This is another simple thing that really helps to cut down on feedback. Make sure you grip the microphone on the handle, not up around the ball. Holding at the ball effectively turns your hand into a highly reflective surface surrounding the microphone capsule, which then creates an isolated feed
FAQ | How does the KC12T Mid/HF unit work?
Published March 10th, 2025 by Steve Gallagher
Answer The groundbreaking design of the KC12T Mid/HF enclosure features a 1-inch compression driver combined with the innovative QSC LEAF™ waveguide, as well as two high-excursion 4-inch midrange drivers. Both midrange and high frequencies bandwidth are reproduced by dedicated drivers providing clean and natural sound at all output levels.
FAQ | What are the dimensions of the KW181?
Published September 12th, 2024 by Steve Gallagher
Answer The dimensions for the KW181 are: 20.3" x 23.4" x29.9" w/casters 516 mm x 595 mm x 761 mm w/casters For more information, see the KW Series Specification Sheet.
Sound Advice | Compression Explained
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Compression is a useful tool that allows us to reduce the dynamic range of an audio signal making the loud parts quieter and the quiet parts louder. Compression is essential in taming musical elements that pop uncomfortably out of the mix. There are 6 controls on a compressor: Threshold is the level at which compression starts to take
Sound Advice | Limiters Explained
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Compressors and limiters are very similar. Both compressors and limiters reduce the volume of a signal passing through them, but the goal is different. A limiter is used to reduce the volume of a sound until a specified threshold, so that it doesn’t clip, whereas the goal of a compressor is just to reduce the dynamic range or the loud
FAQ | Is the second EtherCON port on LA108/LA112 for network redundancy (primary vs secondary)?
Published August 28th, 2023 by Steve Gallagher
Answer No. The second EtherCON port is a parallel switched port that allows for daisy-chaining boxes.
Sound Advice | How to ring out a room (mains and monitors) to eliminate feedback
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Ringing out your room is a process for stabilizing your PA system against feedback by identifying and eliminating problematic frequencies that are prone to feeding back naturally. It’s a simple process that can make a big difference when it comes to controlling feedback. You can use an RTA to help do this faster and more efficiently.
FAQ | What are the angles of the dual loudspeaker pole cup available on the bottom of the LA108/LA112?
Published August 25th, 2023 by Steve Gallagher
Answer There are two pole cups on each loudspeaker. One will provide a 0° angle (baffle perpendicular to the ground). The other offers a (minus) -7.5° deployment for down-tilt firing.
FAQ | What are the cross-over frequencies for the WL2082 (ILA) speaker?
Published April 26th, 2023 by Steve Gallagher
Answer The WL2082 (ILA) speaker, when used in TriAmp mode, has the following basic crossover frequencies: LF HPF 70Hz Butterworth 24dB/oct LPF 400Hz Linkwitz-Riley 12dB/oct LPF 1.5kHz Linkwitz-Riley 12dB/oct --secondary to remove potential crossover in HF band Low/Mid HPF 70Hz Butterworth 24dB/oct LPF 1.5kHz Linkwitz-Riley 12dB/oct HF HPF 1.
FAQ | Is the performance of the LS118 altered/modified when used on its side?
Published August 28th, 2023 by Steve Gallagher
Answer The LS118 can be used in either vertical or horizontal orientation, while providing identical performance and sound radiation no matter the direction of the deployment.
Sound Advice | EQ tips for vocals
Published May 16th, 2024 by Steve Gallagher
Today's Lesson If your mix includes vocals, then your vocal tone needs to be perfect. You see, humans by nature, tune into voices and listen to them predominantly. A small vocal problem will stand out more than a serious flaw elsewhere in the mix. So, Here are suggestions for EQing vocals: BODY (200-500 Hz) 200-500 Hz is the frequency range responsi
FAQ | Do the RMXa Series amplifiers have Universal Power Supplies?
Published April 26th, 2023 by Steve Gallagher
Answer RMXa Series amplifiers do not have Universal Power Supplies.These units must be ordered and configured for the region they will be used in. Example: North America 120v , United Kingdom 230v, Japan 100v
Sound Advice | 5-Step EQ Workflow Overview
Published May 16th, 2024 by Steve Gallagher
Today's Lesson When mixing a band, there is a simplen 5-step EQ workflow to help create a well-defined, clear and present mix. Establish a strong signal to noise ratio; making sure instruments and vocals are properly miked and mixer preamp gains are all set in their most optimal position. Filter out unnecessary frequencies. Your high pass filter is
FAQ | Can I connect an additional, external active subwoofer to the KC12 system? A QSC KS Series one?
Published March 10th, 2025 by Steve Gallagher
Answer Yes! There are two options: Option 1 If your input signal is connected to the Input A of your KC12, you can simply connect your external subwoofer to the Output A which is a passive pass-through (no DSP applied). If using a QSC KS or LS Series active subwoofer as the external unit, there is the added benefit that everything will be automatica
FAQ | How do I know that my KC12 system is performing at its limit and that the loudspeaker is clipping?
Published March 10th, 2025 by Steve Gallagher
Answer First, each input features a “clip” LED light (labelled SIG/CLIP) that will indicate if the signal(s) going into the KC12 system is clipping, which can potentially cause damage to the amplifier or loudspeaker. Additionally, a red LIMITER LED located on the KC12 rear panel illuminates when the system built-in limiter is activated to protect an
Troubleshooting | CP loudspeaker is on, but there is no sound
Published October 10th, 2024 by Steve Gallagher
Affected Products Hardware Model/Series CP Series Loudspeakers Software n/a Problem The CP Series loudspeaker is powered on but there is no output. Causes No output from a speaker can be do to a number of possibilities, from a signal setting to a hardware issue. Solution | Workaround Use the suggestions below to verify possible issues in the signal
FAQ | How is Dante® audio distributed to an L Class array?
Published August 28th, 2023 by Steve Gallagher
Answer When a LA108/LA112 loudspeaker array is created, all of the parameters are linked, such as EQ, Delay, Gain etc. Additionally, the Dante Transmitter (TX) subscriptions are also linked, which means that all loudspeakers receive the same Dante audio from its assigned transmitter. Because Dante uses multi-cast traffic, one transmitter (such as a
FAQ | What is linear phase and why should anyone care about it?
Published August 28th, 2023 by Steve Gallagher
Answer Linear phase means that all frequencies are delayed by the same amount when passing from the input to the output of a system. The image below depicts a square wave, a waveform that consists of fundamental and odd harmonics (only two of which are shown). When the square wave passes through a linear phase system, the time relationship between f
Quick Tip | K.2 Series Outputs Explained: Mix Out vs Thru Out
Published August 30th, 2024 by Steve Gallagher
Today's Lesson Let’s discuss the difference between the Mix Out versus the Thru Output on a K.2 loudspeaker. The Thru output, also known as a parallel output is a pre-gain output that will deliver the signal from the corresponding input out to another loudspeaker. The mix output produces a post gain mix of all 3 inputs on the K.2 loudspeaker. Any a
FAQ | What is the operating ambient temperature range at which LA108/LA112 will perform according to their specifications?
Published August 28th, 2023 by Steve Gallagher
Answer The operating ambient temperature range of L Class models is between 0° - 50°C (32° - 122°F). However at the upper end of the operating range, thermal limiting may engage resulting in reduced sound output.
Sound Advice | Using delay loudspeakers in a venue
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Today, we need to provide concert level sound without disturbing the neighbors behind us. To accomplish this, we'll set up a pair of delay speakers halfway back in the venue. The problem we need to solve is that sound from the main loudspeakers is arriving later than the sound from the delay speakers for people sitting in the back sec
FAQ | How do I know if my iPad or iPhone is compatible with iOS17?
Published November 22nd, 2023 by Steve Gallagher
Answer Here is a list of compatible iPhones: https://support.apple.com/guide/iphone/models-compatible-with-ios-17-iphe3fa5df43/ios Here is a list of compatible iPads: https://support.apple.com/guide/ipad/models-compatible-with-ipados-17-ipad213a25b2/ipados
FAQ | Is it possible to send Dante audio from a TouchMix?
Published October 10th, 2024 by Steve Gallagher
Answer The TouchMix Series mixers do not have Dante audio capability. An interface to take output signal and convert for Dante use is necessary.
Sound Advice | Phantom Power
Published May 16th, 2024 by Steve Gallagher
Today's Lesson What is phantom power? Phantom power is a voltage charge that runs backwards, from a mixers’ input to a microphone, via the same XLR cable that the microphone uses to send signal to the mixer. Power and audio on the same cable. It’s actually called phantom power because when its’ engaged, you can’t even tell that it’s happening. Hence
Sound Advice | How to avoid comb filtering part 3: Reflections
Published May 16th, 2024 by Steve Gallagher
Today's Lesson There are two ways comb filtering is created in a physical space with a sound system. The first is by what is called reflections. Any time a sound is produced, it radiates from the source and bounces off of nearby hard surfaces. For example, when a drummer hits the snare, the emitted sound travels to the microphone as well as to nea
Sound Advice | Loudspeaker placement part 2: Low frequency cancellation
Published May 16th, 2024 by Steve Gallagher
Today's Lesson While placing a loudspeaker against a wall will cause low frequency build-up, placing a loudspeaker within a certain proximity to walls and surface can have other adverse effects. Primarily, a phenomenon known as low frequency comb filtering cancelation. What this means is that at frequencies where the distance from a wall is equal to
Factory Reset | TouchMix Digital Mixers
Published June 6th, 2024 by Steve Gallagher
Procedure Use the following steps to reset a TouchMix Digital Mixer to its factory default settings: Part 1 - Mixer Settings Note This procedure will set the mixer back to factory defaults WITHOUT clearing scenes or remote devices. Go to Menu Go to Mixer Setup Select Reset Mixer Part 2 - Internal Storage Caution This procedure will clear all i
Sound Advice | What is frequency?
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Frequency, in its most pragmatic definition, is the exact number of times, or cycles, the waves of a particular sound move through the air per second. Hertz is the unit of measurement used to identify frequency. One complete cycle that travels in one second is 1 Hertz (Hz). A low E string on a guitar vibrates at 82 Hz. When plucked, i
How To | Set up In Ear Monitors (IEM) with TouchMix mixers
Published April 26th, 2023 by Steve Gallagher
Procedure TouchMix mixers all have the capability to drive wired, stereo In Ear Monitors (IEM) directly. For performers such as keyboardists and drummers who stay at one place on stage, this is a simple and inexpensive way to use “ears”. Each TouchMix model handles the IEM drive a bit differently. TouchMix-8 The IEM output gets its mix from Auxes 3
FAQ | What is the operating ambient temperature range at which the KC12 loudspeaker will perform according to its specifications?
Published March 10th, 2025 by Steve Gallagher
Answer The KC12 system operating ambient temperature ranges between 0° and 50°C (32° to 122°F). However, at the upper end of the operating range, thermal limiting may engage resulting in reduced sound output. Note Note that the KC12 storage temperature ranges between -20° and 70°C (-4° to 158°F), with a relative humidity between 5% and 85% RH.
FAQ | Do TouchMix Series Mixers support exFAT formatted media?
Published November 22nd, 2024 by Steve Gallagher
Answer No. TouchMix Series Mixers only support FAT32 formatted media for recording.
Sound Advice | EQ Fundamentals - Low Pass Filters
Published May 16th, 2024 by Steve Gallagher
Today's Lesson A low pass filter, often abbreviated LPF, allows the signal below a selected frequency to pass through unaffected while removing the signal above that frequency, which are the high frequency sounds. On a TouchMix and some other mixers this same function is referred to as “high cut.” On the EQ page of a TouchMix, select the “high cut”
Sound Advice | Setting up a stage: Stage monitors
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Your stage monitor setup is going to be dependent on the number of players on the stage and the number of monitors you have to accommodate them. Ideally, each member should have either a dedicated floor monitor or in-ear monitor pieces. If more than one player is referencing from the same monitor, you could end up in a situation, whe
Sound Advice | Unbalanced cables
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let’s talk about balanced and unbalanced cables. What does this mean and what’s the difference? We'll start with unbalanced cables. An unbalanced cable consists of 2 wires. One wire carries the signal, while the other wire acts as the ground and serves as a reference for the signal. The most common examples of unbalanced cables are RC
FAQ | Can I send audio or data via the UCB-C port located on the KC12 rear panel?
Published March 10th, 2025 by Steve Gallagher
Answer No, this port is used for firmware updates, and it does also provide adequate power to charge a smartphone or a tablet.
Quick Tip | How to Daisy Chain K.2 Series Loudspeakers
Published August 30th, 2024 by Steve Gallagher
Today's Lesson Daisy chaining is a process of connected multiple loudspeakers together in series. Today we'll discuss how to daisy chain K.2 loudspeakers together. Underneath each input on the back panel is a direct parallel or Thru output, which will carry signal coming into the loudspeaker from the corresponding input. The signal is carried throug
Sound Advice | Controlling stage volume - More is less
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Controlling your stage monitor volume is more important than you might think for several reasons. The more volume that is created on stage, the more potential you have for feedback. There is also the possibility of monitor feedback spilling out into the audience area and affecting the sound in the venue by interfering with the front o
FAQ | Where do I find service manual to repair my product?
Published October 10th, 2024 by Steve Gallagher
Answer Service manual are only available to QSC Authorized Service Partners. If you are having troubles with your equipment, Create a Case or contact QSC Technical Support for assistance.
Sound Advice | Cable management
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Cable management is a great way to increase the aesthetic appeal of your stage setup as well as promote a bit more safety around your gear. There are a couple widely accepted methods for cable management, primarily focusing on the cables going to and from your loudspeakers. The top method is to secure your cables to the speaker stan
FAQ | The LA108 has less specified amplifier Watts than a KLA12. Does that mean that the LA108 is not as loud as a KLA12?
Published August 25th, 2023 by Steve Gallagher
Answer Specified amplifier power (Watts) alone is not an indication of the maximum sound pressure level a loudspeaker is capable of producing. The KLA12 has a maximum SPL of 131 dB, however the use of a very efficient Class D amplifier together with improved-sensitivity transducers gives the LA108 an increased output of 134 dB.
FAQ | What is the coverage pattern of the KC12?
Published March 10th, 2025 by Steve Gallagher
Answer Thanks to the innovative QSC LEAF™ (Length-Equalized Acoustic Flare) waveguide the KC12 system delivers a uniform coverage of 145° in the horizontal plane and 35° in the vertical place with excellent throw.
Sound Advice | EQ Tips - The boost, sweep and cut method
Published May 16th, 2024 by Steve Gallagher
Today's Lesson We will use our parametric EQ to mold and shape the sound of each instrument by cutting or boosting certain frequencies. While boosting frequencies is easier to hear, it’s a better practice to listening for problematic frequencies and then reduce those first. If you’re not exactly sure where an offending frequency is, then you can app
Sound Advice | How to adjust input gain on your mixer
Published May 16th, 2024 by Steve Gallagher
Today's Lesson A quick tip regarding input gain. The first thing you want to do after plugging mics and instruments into your mixer is set your input gain using the gain trim knobs. This is vital to achieving the best performance from you mixer and PA system. Have each player sing or make some noise while you adjust the knob to allow more signal int
Troubleshooting | K.2 Speaker Displaying Firmware 9.1.1.x
Published April 26th, 2023 by Steve Gallagher
Affected Products Hardware Model/Series K8.2, K10.2, K12.2 Software 1.3.3, 1.3.3, 1.4.1 Problem The speaker displays a firmware build of 9.1.1.x prior to performing an update or immediately after performing a firmware update to 1.3.3 (K8.2 & K10.2) or 1.4.1 (K12.2). Causes The 9.1.1.x is a temporary stage that happens during the normal firmwar
FAQ | How can I check the warranty status of a QSC Audio product?
Published December 19th, 2024 by Steve Gallagher
Answer Contact QSC customer care with the product's serial number to verify the warranty status.
FAQ | Why do the LA108/LA112 feature only three adjustable vertical splay angles?
Published August 25th, 2023 by Steve Gallagher
Answer Typical applications for L Class loudspeakers were defined to include deployment of arrays containing up to six (6) loudspeakers. Extensive calculations and simulations of array sizes and venues likely to be encountered by users of L Class loudspeakers were done. These simulations showed that L Class arrays could be optimized for Reach (sound
Training | KS Series Active Subwoofers
Published June 14th, 2024 by Steve Gallagher
Information QSC has several training videos available for KS Series Subwoofers. Please see the info below to get started on your product. Tech Talk: KS118 Overview Summary In this video, QSC portable loudspeaker product manager Chris Brouelette walks through the features and benefits of the active KS118 subwoofer. Tech Talk: Keeping Bass in its
FAQ | How many L Class models can I connect via switch hops on a single network run from my router or switch?
Published August 28th, 2023 by Steve Gallagher
Answer In the AV industry, there are two common methods of connecting network devices. The first method is a star topology where each device has its own port on an Ethernet switch. This is the most robust method but it requires a cable home run from each device back to the Ethernet switch, which is fine for permanent installations but challenging fo
FAQ | Is the LS118 flyable?
Published August 28th, 2023 by Steve Gallagher
Answer The LS118 has fittings that accommodate M10 Eyebolts. Flying an array consisting of multiple subwoofers is not supported. Always be sure to observe safe rigging practices and local regulations when suspending loudspeakers and subwoofers.
Error / Status | K.2 Series LED Indicator Definitions
Published May 13th, 2024 by Steve Gallagher
Affected Products Hardware Model/Series K.2 Series Power Loudspeakers Software Message The K.2 Series Powered Loudspeaker have several LED indicators to show statuses for the unit. Definition The table below defines the statuses for each indicator on the K.2 Series powered loudspeakers. LED Indicator (see image above) Status 1a - Input A Sig LED
FAQ | What is phantom power?
Published November 21st, 2024 by Steve Gallagher
Answer Condenser microphones require a polarizing voltage and power for their built in amplifiers. Sometimes provision is made to supply this voltage directly though the microphone cable. The procedure is called phantom powering. Most commonly 48 VDC is supplied by mixing consoles, though 24V supplies are widely used. Phantom powered microphones can
FAQ | Where do I register my QSC gear?
Published June 17th, 2024 by Steve Gallagher
Answer To register your QSC gear go to the link below, fill out the form, and you're all set! https://www.qsc.com/support/product-registration/
FAQ | Can the LS118 run in cardioid mode?
Published August 28th, 2023 by Steve Gallagher
Answer Yes, using two or more LS118 side by side, stacked, or back-to-back and engaging the appropriate cardioid setting (Forward/Rear) on each subwoofer will provide a cardioid coverage.
How To | Using TouchMix 30 with conferencing software in Windows
Published April 26th, 2023 by Steve Gallagher
Procedure TouchMix 30 can be used with conferencing software such as Skype and Teams. Use the following steps to use TouchMix 30 with conferencing software in Windows: In your conferencing software, select the TouchMix 30 as the input. This setting is often independent of the default Windows sound settings. If desired for output, also select the Tou
FAQ | Can you use the TouchMix Antifeedback wizard on both the FOH and monitors independently?
Published October 10th, 2024 by Steve Gallagher
Answer Yes. Separate Anti-Feedback Wizards are available on the Main and Aux Outputs. Press the top of the output to open the Overview Screen, then press the Anti-Feedback tab to access settings for the specified output.
FAQ | Are the E Series loudspeakers IP rated?
Published April 26th, 2023 by Steve Gallagher
Answer The E Series loudspeakers are intended for use in portable/mobile systems and controlled environment installs (I.E. bars, clubs..etc). While these do have treated speakers, the enclosures are not IP rated for installed outdoor use.
Factory Reset | L Class loudspeakers
Published May 15th, 2024 by Steve Gallagher
Procedure Use the following steps to reset L Class loudspeakers to factory default settings: Menu Method Navigate to Settings in the speaker menu. Go to Utilities. Go to Factory Reset. Confirm reset. Wait for reset to complete. Caution Resets all parameters to the factory defaults. This cannot be undone. Shortcut Method With the loudspeaker/su
Sound Advice | Signal to Noise Ratio
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Establishing an excellent signal to noise ratio is the first step in sculpting great channel EQs. The signal is the source that you want to amplify in a specific channel; for example, a vocal or an instrument. Noise is any other audio content that you don’t intend to amplify; for example loud guitar amps or drums bleeding into vocal m
Sound Advice | How to run a smooth soundcheck with TouchMix
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Here's how to run a smooth sound check on a TouchMix at a multi-artist event. Use the feedback wizard to ring out the monitors before the band arrive. Use Channel presets to instantly dial in starting points for individual channel EQ, gate, andcompression. Quickly dial in the input gain using the gain wizard to find the optimal gain.
FAQ | How many LA108/LA112 loudspeakers can I deploy on a loudspeaker stand?
Published August 25th, 2023 by Steve Gallagher
Answer A loudspeaker stand with a 45 kg (100 lb) safety rating can be used to deploy up to three (3) LA108 loudspeakers, or up to two (2) LA112 loudspeakers per stand. Always be sure to read and follow the safety recommendations provided by the manufacturer of the stand.
FAQ | Where can I find the K.2 Series user manual?
Published September 7th, 2023 by Steve Gallagher
Answer You can find the K.2 Series user manual attached to this article, or on the K.2 product pages of the QSC website.
Sound Advice | Shelf EQ Filters Explained
Published May 16th, 2024 by Steve Gallagher
Today's Lesson A shelving filter either increases or decreases the volume level of frequencies equally below, or above, a selected frequency. When you look at the result on the display is resembles a shelf, hence the name. By default, all 4 filters on a TouchMix input channel EQ page are parametric. You can turn the lowest and highest filters into s
Sound Advice | Creating a "festival" mixing scene
Published May 16th, 2024 by Steve Gallagher
Today's Lesson In a music festival scenario, there will be several bands playing and you may not always know what the set is for each band until they get up on stage. This means as the mix engineer, you'll need to be prepared for anything. To do this you can create a “festival scene” on TouchMix 30 Pro. Bank 1 includes all the inputs for drums. You
Sound Advice | Setting up a stage: Running power
Published May 16th, 2024 by Steve Gallagher
Today's Lesson The first step to getting a stage setup is to find where the available power outlets are in the room and run power drops to the stage. You’ll need power available for your main PA loudspeakers and subwoofers. So a drop at or near the front of the stage, possibly two is a good idea. If your system uses passive loudspeakers, you’ll ju
FAQ | What is the coverage pattern of the LA108 and LA112?
Published August 25th, 2023 by Steve Gallagher
Answer The LA108 has a coverage of 100° H x 15° V, while the LA112 features a 90° H x 15° V coverage, utilizing QSC Directivity Matched Transition® technology to match the horizontal coverage pattern at the crossover.
FAQ | If I purchase a previously owned QSC Audio product, will the remaining warranty be honored?
Published December 19th, 2024 by Steve Gallagher
Answer Yes, the warranty follows the serial number of the product.
Sound Advice | Loudspeaker placement part 6: Distributed loudspeakers
Published May 16th, 2024 by Steve Gallagher
Today's Lesson What do you do if you find yourself in a large venue or an outdoor venue, and your main PA loudspeakers just don’t seem to cover the full audience area adequately? The best solution here is to make use of fill or delayed loudspeakers. But how do you know where to best place them? The ’Inverse Square Law’ states that in a controlled in
Sound Advice | Volume channel placement
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Once you’ve established general EQ settings for your instruments, channel volume placement is the next step in creating an even sounding mix. We will do this by using our mixer’s faders. Do not use your mixer’s trim knobs to mix your band. Hands off! Mixing the volume of each instrument is not a passive or “set and forget” process. Wh
Sound Advice | How Feedback is Created
Published May 16th, 2024 by Steve Gallagher
Today's Lesson The first key to managing and eliminating feedback on a live stage is to understand how feedback is created. Feedback is the result of a sound looping between an input and an output. More specifically, feedback occurs when a sound is picked up by a microphone, then amplified through a loudspeaker, and then that amplified sound is pic
Sound Advice | Loudspeaker placement part 3: Low frequency resonance
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Low frequency sounds have very long omnidirectional wavelengths that are powerful enough to make concrete slabs, walls, and ceilings vibrate. Such structure-born vibrations are called ‘diaphragmatic resonances’, which often compromise the perceived low frequency definition. These resonances travel very efficiently via building structu
FAQ | Can I connect to my L Class loudspeaker array with Dante® and then pass the signal through the rest of the array with analog XLR cables?
Published August 28th, 2023 by Steve Gallagher
Answer No. The XLR output connector featured on L Class models is an analog pass-through wired directly to the XLR input. The signal is not post-DSP.
Quick Tip | Using K.2 Loudspeakers as Studio Monitors
Published August 30th, 2024 by Steve Gallagher
Today's Lesson Learn how to set your K.2 Series loudspeakers to be used as studio monitors with the Studio Monitor preset. Press the Enter button. Use the encoder wheel to scroll to Preset. Press Enter. Scroll to Studio Monitor. Press Enter. Press Exit to return to the main menu. For more lessons and videos, see our QSC YouTube page.
FAQ | What is QSC Acoustic Linear Phase (ALP) design?
Published August 28th, 2023 by Steve Gallagher
Answer QSC ALP design employs a combination of FIR, IIR and all-pass filters to address a number of phase-related shortcomings found in many loudspeakers. Used across a range of QSC loudspeakers, ALP design provides consistent phase response allowing easy combination and coherent deployment of loudspeakers within the same sound system. It eliminates
Sound Advice | How to set up mono in-ear mix
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Today we'll discuss how to set up a mono in-ear mix on a TouchMix mixer. Choose an aux mix and make sure to label it. Make sure your mix is set to “pre fader.” Plug an XLR in the aux output you’ve chosen. Whether you’re using a headphone preamp or a wireless transmitter, plug the other side of the XLR into the input marked “Left (mon
Sound Advice | How to avoid comb filtering part 1: Destructive phase interference
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let's discuss a phenomenon called comb filtering, which can have an adverse effect on the overall sound of the PA in a room. Destructive Phase Interference To begin explaining comb filtering we first have to explain something called destructive phase interference. Simply put, destructive phasing happens when a waveform is presented t
FAQ | What is Ar-Q™ Array Equalization?
Published August 28th, 2023 by Steve Gallagher
Answer As the size and total vertical coverage of an array is altered, the resulting change in low frequency (LF) energy output is not the same as the change in high-frequency (HF) output. In order to maintain consistent balance between LF and HF, array equalization filters are used. These shelving filters display varying amplitude and frequency. QS
FAQ | Where can I find spare parts for my QSC gear?
Published June 6th, 2024 by Steve Gallagher
Answer Spare parts may be purchased through QSC's Authorized Service Partners, Dealers, Distributors, and at the QSC Spare Parts site (for US customers). Note QSC does not sell spare parts to International end-users. International end-users may contact an Authorized QSC Distributor/Dealer in-region for additional information on purchasing spare part
Update | Q-SYS Product Information
Published July 10th, 2023 by Steve Gallagher
Information It looks like you are searching for information related to a Q-SYS product. To get the information you need, please go to the Q-SYS Knowledge Base .
FAQ | Are the KLA Series loudspeakers IP rated?
Published April 26th, 2023 by Steve Gallagher
Answer The KLA Series loudspeakers are intended for installed audio systems in a climate controlled environment. They are not IP rated for permanent outdoor installations.
FAQ | Are K.2 Series speakers waterproof?
Published November 22nd, 2024 by Steve Gallagher
Answer K.2 Series loudspeakers are not waterproof. K.2 Series Outdoor Covers are available for temporary use in adverse conditions, but are not meant for permanent installations. For more information, see the QSC K.2 Series Accessories page.
FAQ | Which subwoofer is right for my needs?
Published May 17th, 2024 by Steve Gallagher
Answer We have just the tool to help you choose the right subwoofer by answering a few questions about your indented use. Click here for our Subwoofer Selector Tool .
FAQ | Where do I find firmware updates for my K.2 speakers?
Published June 4th, 2024 by Steve Gallagher
Answer Updates for the K.2 Series loudspeakers can be downloaded from the K.2 Firmware page. You will also find instructions and release notes regarding the updates on that page.
Quick Tip | K.2 Series Useful Features
Published August 26th, 2024 by Steve Gallagher
Today's Lesson The K.2 Series loudspeakers have three separate inputs. Input A can be mic or line level. Input B can be either a line level input or set to high-Z, making it suitable for musical instruments that have passive magnetic or piezo pickups. That’s right, the K.2 Series loudspeakers can be used as guitar or bass combo amp. Input C is a st
Quick Tip | Saving Scenes on TouchMix
Published August 26th, 2024 by Steve Gallagher
Today's Lesson Here we discuss how to save and recall a scene on a TouchMix mixer. A mixer Scene saves all of the settings on the TouchMix to be recalled at a later time. You can save scenes for different venues, different bands, or even different line ups within the same band. Scenes can help cut down on setup time and sound check. Saving a New
FAQ | Can TouchMix series mixers integrate directly with Q-SYS?
Published April 26th, 2023 by Steve Gallagher
Answer No. Other than analog audio connections, direct control of a TouchMix mixer from Q-SYS (and vice versa) is not possible.
Sound Advice | Controlling stage volume - Minimize drums in monitors
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Drums are loud, and there isn't much that can be done about that as far as control. What we can do is try to limit amplifying them further on stage. Most of the players will probably only want certain elements of the drums in their monitor mix to serve as rhythmic reference and time keeping; hi-hat and snare most likely and that's fi
FAQ | Where can I find compliance information for the K.2 Series Loudspeakers?
Published July 30th, 2024 by Steve Gallagher
Answer Compliance documents for the K.2 Series Loudspeakers can be found on the product pages below: K8.2 K10.2 K12.2
Quick Tip | Ways to move Faders on the TouchMix App
Published August 30th, 2024 by Steve Gallagher
Today's Lesson There are four ways to adjust faders on a tablet when connected to a TouchMix. To quickly slide to a general position, touch and move the fader with your finger. For slightly more precise adjustments, tap above or below the fader to make 1 dB changes. When a fader is selected, use the arrow buttons to make 1 dB adjustments up or down.
FAQ | Can I use the KC12 loudspeaker in applications where it may be exposed to rain or other sources of moisture?
Published March 10th, 2025 by Steve Gallagher
Answer No, the KC12 loudspeaker is not rated for use in wet weather environments.
Quick Tip | K.2 Series Presets
Published August 26th, 2024 by Steve Gallagher
Today's Lesson There are a total of eleven robust presets on each K.2 Series loudspeaker that are tailored to different applications. If you’re a DJ, you’ll enjoy the Dance voicing which gives the loudspeaker more high-end clarity and additional extended low end. If you’re using the K.2s as floor monitors, there are two powerful presets for that as
FAQ | What do I need to know to connect my TouchMix to an existing network in a facility?
Published November 27th, 2024 by Steve Gallagher
Answer If the network has been set up by IT professionals, they may be reluctant to allow it. But if they do, they will want to know two things. What port do you want them to give you? Answer: Any open port will work. The mixer will find it. What services to you need? Answer: None. The mixer implements zero-configuration networking using Bonjour.
FAQ | Does the K.2 have Bluetooth audio streaming?
Published November 26th, 2024 by Steve Gallagher
Answer No. The K.2 Series speakers do not have Bluetooth capability. An external Bluetooth receiver would need to be connected to an input to use Bluetooth audio.
Sound Advice | Balanced cables
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let's talk about the difference between balanced and unbalanced and what the advantages are of using these cable types. To begin, balanced cables consist of three wires, unlike unbalanced cables which only have two. In balances cables, you have the same signal and ground wires as with unbalanced, but the third cable carries a negativ
FAQ | TouchMix-30 | My iOS device will not update to iOS17, can I still use this device with the new app?
Published November 22nd, 2023 by Steve Gallagher
Answer Yes. You can use older IOS mobile devices running an older IOS builds with the Touchmix-30 Pro Control App version 3.0.22 as long as the app is visible in the Apple Store on your device. The Touchmix-30 Pro Control App version 3.0.22 was built for best compatibility with iOS17 or later. If utilizing an older device and older IOS version, th
Sound Advice | Mixing monitors using a wireless tablet
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Whether you’re the sole monitor mixer for an event or you’re managing both FOH and monitors, there are some real advantages to managing monitors with an iPad from the stage. Number one, being up there with the musicians sends an unspoken message that you’re committed to dialing in the best reference possible for each musician so they
FAQ | How many LA108/LA112 loudspeakers can be flown in an array?
Published August 25th, 2023 by Steve Gallagher
Answer An array consisting of six (6) LA108/LA112 loudspeakers may be flown with a safety factor of 10:1 using QSC dedicated, product-specific array frame accessories.
FAQ | Can I position two KC12 loudspeakers next to each other to achieve higher sound pressure levels?
Published March 10th, 2025 by Steve Gallagher
Answer Due to the very wide 145°horizontal coverage of the KC12 loudspeaker, placing two complete systems next to each other will result in serious comb filtering cancellations between the two KC12T Mid/HF units, compromising greatly the sound reproduction quality. Such a configuration should be avoided. However, two KC12 systems can be connected in
FAQ | Can I connect signal sources to all three KC12 loudspeaker inputs at the same time?
Published March 10th, 2025 by Steve Gallagher
Answer Yes! Not only can you connect multiple sources at once, but each input also features dedicated Factory Presets allowing you to shape the sound independently on each input to achieve the best mixed sound.
Quick Tip | Using Multiple Wireless Tablets with TouchMix-30 Pro
Published August 30th, 2024 by Steve Gallagher
Today's Lesson When mixing on TouchMix 30 Pro, you can add more fader real estate to your setup by simply hooking up a few tablets. This is especially helpful when working with large bands or a large number of inputs where you need to make split second changes. Instead of switching from bank to bank, try having your screens laid out so that each scr
Sound Advice | What is a graphic EQ?
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Graphic equalizers consist of multiple graphical sliders that producers and audio engineers use for altering and controlling the frequency response of an audio system. Professional sound-reinforcement graphic EQs generally have 31 bands. The center frequency of each band is spaced 1/3 of an octave away from the center frequency of the
Sound Advice | How to avoid comb filtering part 2: What is comb filtering?
Published May 16th, 2024 by Steve Gallagher
Today's Lesson What is comb filtering? Comb filtering occurs when certain frequencies are either amplified or attenuated within 10 dB of each other by interference from an identical version of the original audio signal that is delayed between 2-30ms.This is important. If the two signals interact outside of those two circumstances, the comb filtering
FAQ | Where do I download the TouchMix DAW Utility software?
Published October 10th, 2024 by Steve Gallagher
Answer Touchmix DAW Utility can be downloaded from the TouchMix DAW Utility page.
Sound Advice | Loudspeaker placement part 1: Low frequency build-up
Published May 16th, 2024 by Steve Gallagher
Today's Lesson Let’s talk about loudspeaker placement. More specifically, let's focus on what happens to low frequencies when a loudspeaker is placed right up against a hard, heavy wall or surface, or possibly several surfaces. Sound propagates differently at specific frequency ranges as outlined by the diagram below. Anything below 400Hz is what w
FAQ | Which QSC loudspeakers feature Acoustic Linear Phase (ALP) design?
Published August 28th, 2023 by Steve Gallagher
Answer QSC has applied the concept of Acoustic Linear Phase (ALP) design to loudspeaker systems including QSC K.2 Series™ KS and CP Series as well as L Class family of products. With consistent phase response across a range of loudspeakers, it is possible to deploy systems in which various types of loudspeakers can be more coherently combined. As an
FAQ | Can a TouchMix mixer use Dante or AES67 for audio routing?
Published April 26th, 2023 by Steve Gallagher
Answer No. The TouchMix-8, TouchMix-16, and TouchMix-30 Pro do not have the ability to use Dante or AES67 for network audio routing.
FAQ | Are the WL3082 Array's IP rated?
Published April 26th, 2023 by Steve Gallagher
Answer As the WL3082 enclosures are intended for short term mobile/portable systems and not permanent outdoor installations, they do not have an IP rating.
FAQ | Can a TouchMix mixer use Dante or AES67 for audio routing?
Published April 20th, 2023 by Steve Gallagher
No, the TouchMix-8, TouchMix-16, and TouchMix-30 Pro do not have the ability to use Dante or AES67 for network audio routing.
FAQ | Can I fly an array of LA108/LA112 underneath the LS118?
Published August 28th, 2023 by Steve Gallagher
Answer No, the LS118 subwoofer does not have matching rigging hardware that could be directly attached to LA108/LA112 enclosures. However, a single LS118 can safely be flown behind or next to an LA108/LA112 array.
FAQ | How many wireless devices can be connected to the mixer at one time?
Published November 27th, 2024 by Steve Gallagher
Answer Up to twelve devices may be connected to a TouchMix at one time.
FAQ | Can K.2 Series loudspeakers be used in a cluster or line array?
Published June 17th, 2024 by Steve Gallagher
Answer No. While K.2 Series loudspeakers can be permanently installed, their design and mounting hardware is not intended for cluster or line array applications. If the intended use case requires a cluster or line array, consider the KLA Series or L Class loudspeakers.
Error / Status | TouchMix Error 1234 - Can't connect to IP Address
Published June 3rd, 2024 by Steve Gallagher
Affected Products Hardware Model/Series TouchMix Series Software Message Error 1234 - Can't connect to IP address shows on TouchMix. Definition Error 1234 will populate if there is an issue with the mixer receiving an IP Address from the existing network router. Verification Verify the SSID of the network that the mixer is trying to connect to is
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