QSC TouchMix User manual

Pocket
Reference
Guide
2015

Amplifiers
Founded over four decades ago, QSC Audio Products, LLC, is a globally
recognized leader in the design and manufacture of professional audio
system solutions. With power amplification, loudspeaker, digital signal
processing (DSP) and digital mixer engineering resources all located under
one roof, we uniquely leverage these technologies to deliver products and
systems that far outperform the sum of their parts - providing compelling
solutions for professional installed, portable, production and cinema sound
customers worldwide.
A QSC solution may take the form of our market-leading K Series – a
complete system including amplifier, loudspeaker and DSP technologies
all contained within a single box. Or, a QSC solution may be comprised of
hundreds of individual technology components, interconnected via Q-Sys™
across a vast and complex network of audio, video and control devices. In
both cases, and in every instance where QSC is utilized, the results are the
same – a robust, reliable, easy-to-configure and deploy, sonically superior
solution that meets the needs and exceeds the expectations of our
customers and their clients in every way.
The following pages represent our latest products and technologies.
Designed to give you a brief overview, this Guide should be considered
a supplement to the Products and Solutions pages online at qsc.com.
There, you will find a fully updated, comprehensive set of information,
documentation, tools and images that work in tandem with this Guide.
Additionally, our online education site, qsctraining.com is another great
resource to learn more about QSC products and solutions.
Thank you for the opportunity to share our passion for audio with you.
Enjoy the Guide.

2 3Table of Contents Table of Contents
Digital Mixers
QSC TouchMix 4
Amplifiers
CXD Series 8
PLD Series 10
CX Series 12
PowerLight™3 Series 14
CMXa Series 16
RMXa Series 18
PLX2 Series 20
GXD Series 22
GX Series 24
ISA Series 26
Amplifier Accessories 28
Loudspeakers
K Series Active Loudspeakers 30
KW Series Active Loudspeakers 32
KLA Series Active Loudspeakers 34
House of K Accessories 36
ILA Series Installation Line Array 38
WideLine-8 Line Array System 42
WideLine-8 Subwoofers 44
WideLine-10 Line Array System 46
WideLine-10 Subwoofers 48
AcousticPerformance™Series 50
AcousticDesign™Surface-mount 54
AcousticCoverage Series 68
AcousticDesign™Ceiling-mount 70
Digital | Network
Q-Sys™Integrated System Platform 78
Networked Amplifiers 80
Q-Sys™I/O Peripherals 82
Q-Sys™Paging Peripherals 84
Q-Sys™Control Peripherals 86
SC28 System Controller 88
QR Index 90
Table of Contents

4 5Mixers Mixers
The TouchMix Series offers musicians, production professionals and live
performance venues the power and capability of a large format console in a
highly portable, fully integrated, affordable and easy to use product.
Just as digital cameras offer advanced features to meet the needs of skilled
professional photographers combined with “point and shoot” features to
assist novice users in achieving optimum results, the TouchMix-8 (12 input
channels) and TouchMix-16 (20 input channels) provide the user a choice
of Advanced Mode operation that offers total control over all parameters or
Simple Mode that provides only the most essential controls.
“Big Mixer” Features and Specifications
TouchMix Series “no asterisk” specifications include 4-band, fully parametric
EQ with variable hi-and lo-pass filters, as well as comprehensive dynamics
processing on each input channel. Four mix busses feed four internal,
professional, digital effects processors. Comprehensive dynamics, graphic EQ,
hi-pass, lo-pass and notch filters and delay are available on both the main and
aux outputs and there are 8 DCA groups with mutes as well as 8 mute groups.
With four (TouchMix-8) or ten (TouchMix-16) auxiliary output channels,
TouchMix also has ample stage monitor mixing capability. Both models have
the ability to drive, wired stereo in-ear monitors directly.
Fast, Professional Results
TouchMix features a comprehensive library of Channel Presets,
created specifically for the unique requirements of live sound reinforcement.
Designed by veteran live sound engineers utilizing all types of instruments,
popular microphones and pickups as well as multiple types of speaker
systems, these presets help the user achieve great results quickly. The
mixers’ onboard Effects Wizard guides the user through the selection and
assignment of appropriate effects while the Gain Wizard continuously
monitors and displays input clipping. TouchMix also comes with a
comprehensive library of complete Mixer Scenes, and all user parameters of
any mix can be saved, both internally and via USB drive.
Compact and Complete
The TouchMix Series models are completely self-contained and require no
external PC or video display. The graphic, color touch-screen provides access
to all mix parameters along with a physical rotary encoder and hardware
buttons. The available Remote Control App for iOS phones and tablets
controls all mixer parameters and the included USB Wi-Fi adapter creates the
network connection between the mixer and the hand-held device. While no
additional hardware is required, wired or wireless connection to an external
or infrastructure router is also supported. The mixer is also capable of direct,
multi-track recording to an external USB hard drive in 32-bit broadcast wave
format. Tracks can be mixed down or played back on the mixer or imported
into most DAW software for over-dubs and post-production. TouchMix
Models also come complete with their own padded carrying case, for
transport and protection.
TouchMix Series
Compact Digital Mixer
TouchMix-16
TouchMix-16 TouchMix-8

6 7Mixers Mixers
TouchMix Series
Compact Digital Mixer
TouchMix-8 TouchMix-16
DIsplay 6.1" x 3.5" (156mm x 90mm) color TFT, touch sensing.
Inputs (Mic/Line) 12 Total
4, XLR/TRS combi
4, XLR
2 Stereo, 1/4" TRS
20 Total
4, XLR/TRS combi
12, XLR
2 Stereo, 1/4" TRS
Input (Talkback) n/a 1, XLR
Outputs 2 Main, XLR, Line
4 Aux., XLR, Line
1 Stereo. TRS, (Line or In Ear
Monitor, 16 Ohm min. impedence)
1 Stereo Cue, TRS, (Line or head-
phone, 16 Ohm min. impedence)
2 Main XLR, Line
6 Aux. XLR, Line
2 Stereo Aux. TRS, (Line or In Ear
Monitor, 16 Ohm min. impedence)
1 Stereo Monitor, TRS, (Line
or headphone, 16 Ohm min.
impedence)
1 Stereo Cue, TRS, (Line or head-
phone, 16 Ohm min. impedence)
Mic & Line Input
Channel Processing
4-band, parametric EQ with Hi/Low shelving option, variable 24db/octave
HPF & LPF, Gate, Compressor
2-Track (USB) &
FX Return Processing
2-band shelving EQ, variable 24db/octave HPF, Gate, Compressor
Output Channel
Processing
Main outputs and auxes 1 - 6: 1/3 octave GEQ, Variable HPF and LPF,
4-band variable notch filters, Limiter
Auxes 7/8 & 9/10 (TM-16 only): 4-band PEQ, Limiter
Recording 14 tracks, requires USB 3.0 HD,
minimum 7800 RPM
20 tracks, requires USB 3.0 HD,
minimum 7800 RPM
Groups 8 DCA groups (with mutes)
8 Mute groups
Cue AFL, PFL
Effects 4 professional effects engines including reverb, echo, delay, chorus.
1 Pitch Correct (assignable to any mono input channel)
TouchMix-8 TouchMix-16
Preset Memory Mixer Preset: Factory & User mixer presets including all mixer
parameters may be stored internally or loaded to / from USB
Channel Preset: Factory & User channel presets may be stored
internally or loaded to / from USB
External Control iOS mixer app for iPad, iPhone, iPod Touch
control via Wi-Fi provides access to all mixer functions.
Android control available mid-2015.
Wi-Fi USB Wi-Fi adapter included; Wireless or wired connectivity to
external network also supported
Dimensions (HWD) 3.1”x 13.1”x 9.8”
79 mm x 333 mm x 250 mm
3.5” x 14.2”x 11.7”
89 mm x 360 mm x 297 mm
Weight 4.3 lb / 1.95 kg 5.9 lb / 2.98 kg
Line Voltage Requirements 100 VAC - 240 VAC, 50 - 60 Hz
Sampling Frequency Selectable 44.1kHz or 48kHz
Signal Delay (Latency) <1.6msec, any input to any output
THD <0.005%, +4 dBu, 20 Hz - 20 kHz, unity gain,
any input to any output
Frequency Response 20 Hz - 20 kHz +/-0.5 dB, any input to any output
Dynamic Range 105dB
Equivalent Input Noise -128dBu
Residual Output Noise -86dBu
Crosstalk -80dB
S/N Ratio -94dB
Input Gain Microphone inputs: 60dB, Line
Maximum Input Level +16dB (Mic inputs),
+22dB (Line inputs)
Phantom Power 48V, individually switchable per channel
Included Accessories USB Wi-Fi adapter, Soft Carrying Case, Power Supply
Preliminary Specifications Preliminary Specifications

8 9Amplifiers Amplifiers
CXD Series – Processing Amplifier
Installed Sound
Representing a revolutionary advancement in amplifier design, CXD
amplifiers feature powerful onboard DSP and deliver robust, high fidelity
power housed in a 2RU chassis. Designed with integrators in mind, the
CXD line includes three models (CXD4.2, CXD4.3 & CXD4.5) capable of
driving a wide range of loudspeaker configurations including 70V and 100V
systems. Flexible Amplifier Summing Technology™(FAST) actively
distributes total amplifier power across one, two, three or all four outputs
enabling amp channels to be paralleled or bridged for maximum current
and voltage output.
• Up to 5,000W continuous and 8,000W peak with
70V/100V direct drive on the CXD4.3 and CXD4.5.
• Flexible Amplifier Summing Technology™(FAST) permits total amplifier
power to be distributed across one, two, three or all four channels.
• Onboard full function loudspeaker processing including Crossover,
EQ, Limiting and Alignment Delay eliminate the need for outboard
loudspeaker processors.
• Intrinsic Correction™ensures optimum sonic performance of
QSC loudspeakers.
• Preset Wizard simplifies setup, providing system design tools
and loudspeaker selection.
• Factory Presets can be used as is, or modified and stored as
one of 50 User Presets.
• Four Euroblock inputs and Four Euroblock touch-proof
speaker outputs.
• PowerLight universal switchmode power supply with Power Factor
Correction for highest efficiency, improved audio performance,
and low weight.
• Rear USB port for connecting to Amplifier Navigator software running
on a PC or Mac for control, monitoring, and amplifier management.
• Amp Navigator also provides on-line and off-line editing of Presets
and Speaker Profiles along with library management.
CXD4.2 CXD4.3 CXD4.5
4 Ch
8Ω
4Ω
2Ω
Burst
500 W
700 W
625 W
Continuous
400 W
400 W
350 W
Burst
900 W
1400 W
1200 W
Continuous
625 W
625 W
625 W
Burst
1200 W
2000 W
1600 W
Continuous
1150 W
1250 W
625 W
2 Ch
8Ω
4Ω
2Ω
Burst
1200 W
1500 W
1500 W
Continuous
800 W
800 W
650 W
Burst
2400 W
2000 W
2500 W
Continuous
1250 W
1250 W
1250 W
Burst
4000 W
2400 W
4000 W
Continuous
2250 W
2250 W
2100 W
1 Ch
8Ω
4Ω
2Ω
1Ω
Burst
1600 W
2500 W
1700 W
2500 W
Continuous
1500 W
1600 W
1600 W
1600 W
Burst
3500 W
5000 W
3500 W
5000 W
Continuous
2500 W
2500 W
2500 W
2500 W
Burst
4500 W
7500 W
4500 W
7500 W
Continuous
4200 W
4200 W
4250 W
3700 W
Weight 18.5 lb / (8.39 kg) 21 lb / (9.53 kg) 22 lb / (9.98 kg)
Burst Power - 20 ms 1 kHz sine burst, all channels driven
Continuous Power - EIA 1 kHz 1% THD, all channels driven
As part of QSC’s ongoing commitment to product development, specifications are subject to change without notice.

10 11Amplifiers Amplifiers
Developed specifically for the needs of portable sound systems, PLD
amplifiers provide efficient, robust and high fidelity power capable of
driving multiple channels and loudspeaker configurations. The PLD line
includes three powerful, light-weight, four-channel amplifiers (PLD4.2,
PLD4.3 & PLD4.5) with advanced onboard DSP. Flexible Amplifier
Summing Technology™(FAST) actively distributes total amplifier power
across one, two, three or all four outputs enabling amp channels to be
paralleled or bridged for maximum current and voltage output.
PLD Series – Processing Amplifier
Portable Sound
• Capable of up to 5,000W continuous and 8,000W peak.
• Flexible Amplifier Summing Technology™(FAST) permits total amplifier
power to be distributed across one, two, three or all four channels.
• Onboard full function loudspeaker processing including Crossover,
EQ, Limiting and Alignment Delay eliminate the need for outboard
loudspeaker processors.
• Intrinsic Correction™ensures optimum sonic performance of QSC
loudspeakers.
• Preset Wizard simplifies setup providing system design tools and
loudspeaker selection.
• Factory Presets can be used as is or modified and stored as one of
50 User Presets.
• Four XLR input connectors and six NL4 0utput connectors.
• PowerLight universal switchmode power supply with Power Factor
Correction for highest efficiency, improved audio performance, and
low weight.
• Rear USB port for connecting to Amplifier Navigator software running
on a PC or Mac for control, monitoring, and amplifier management.
Amp Navigator also provides on-line and off-line editing of Presets and
Speaker Profiles along with library management.
PLD4.2 PLD4.3 PLD4.5
4 Ch
8Ω
4Ω
2Ω
Burst
500 W
700 W
625 W
Continuous
400 W
400 W
350 W
Burst
900 W
1400 W
1200 W
Continuous
625 W
625 W
625 W
Burst
1200 W
2000 W
1600 W
Continuous
1150 W
1250 W
625 W
2 Ch
8Ω
4Ω
2Ω
Burst
1200 W
1500 W
1500 W
Continuous
800 W
800 W
650 W
Burst
2400 W
2000 W
2500 W
Continuous
1250 W
1250 W
1250 W
Burst
4000 W
2400 W
4000 W
Continuous
2250 W
2250 W
2100 W
1 Ch
8Ω
4Ω
2Ω
1Ω
Burst
1600 W
2500 W
1700 W
2500 W
Continuous
1500 W
1600 W
1600 W
1600 W
Burst
3500 W
5000 W
3500 W
5000 W
Continuous
2500 W
2500 W
2500 W
2500 W
Burst
4500 W
7500 W
4500 W
7500 W
Continuous
4200 W
4200 W
4250 W
3700 W
Weight 18.5 lb / (8.39 kg) 21 lb / (9.53 kg) 22 lb / (9.98 kg)
Burst Power - 20 ms 1 kHz sine burst, all channels driven
Continuous Power - EIA 1 kHz 1% THD, all channels driven
As part of QSC’s ongoing commitment to product development, specifications are subject to change without notice.

12 13Amplifiers Amplifiers
The CX Series is a line of two, four and eight channel amplifiers designed for
installation applications requiring premium sound quality and high output.
Recognized by sound contractors worldwide for their reliability, CX Amplifiers
feature PowerLight™power supply technology reducing weight, eliminating AC
mains hum and improving audio quality. The highly efficient power supply
also draws less power and produces less heat resulting in added energy
savings. CX Amplifiers also feature advanced amplifier control and monitoring
via Q-Sys™network audio platform and QSControl.net.
IT-42 is an output isolation transformer accessory for the QSC CX302
amplifier allowing it to drive two 25, 70 and 100 volt distributed lines in
stereo or parallel or a single 140 or 200 volt line in bridged mono. Mounts
to the rear of the CX302 amplifier requiring no additional rack space.
CX Series
Installed Sound
• Active Inrush Limiting gently brings amplifiers on-line eliminating the need
for costly AC power sequencers.
• Front-panel gain controls with1 dB detents allow precise level adjustment
and are protected by tamper-proof security covers.
• DataPort connections enable remote control and monitoring of amplifier
functions via Q-Sys™and QSControl.net™.
• Selectable clip limiters and infra-sonic filters protect loudspeakers from
damage due to distortion and overexcursion.
• DataPort or Block Connector Inputs and touch-proof barrier-strip outputs
(2 ch models also include XLR inputs and 8 ch models feature Block
Connector Outputs).
• Sleep (Standby) Mode for energy saving efficiency.
• Transformer-less 70 /100 volt models available.
Watts per channel
Model 70 V* 8Ω4Ω2Ω*
CX302V 250 – – –
CX602V 440 550 – –
CX1202V 1000 700 1100 –
CX302 – 200 325 600
CX502 – 300 500 800
CX702 – 425 700 1200
CX902 440 550 900 1500
CX1102 1000 700 1100 1700
CX204V 220 – – –
CX254 – 170 250 450
CX404 – 250 400† –
CX108V 100 –––
CX168 – 90 130 –
All channels driven. 20 Hz – 20 kHz, 0.05% THD *1 kHz, 0.05% THD **1 kHz, 1% THD
†1 kHz, 0.1% THD ††20 Hz – 20 kHz, 0.2% THD §20 Hz – 20 kHz, 0.1% THDs
As part of QSC’s ongoing commitment to product development, specifications are
subject to change without notice.
CX 2-channel Models
CX 4-channel Models
CX 8-channel Models

14 15Amplifiers Amplifiers
PowerLight 3 Series are our “Ultimate Analog” amplifiers, designed for the
most demanding concert and live-sound reinforcement applications. All three
models (PL380, PL340 and the PL325) feature the PowerLight™power supply
technology reducing weight, eliminating AC mains hum and improving audio
quality. With zero signal latency with select QSC processors for seamless
integration and flawless loudspeaker alignment, the PowerLight 3 Series
architecture provides users the choice of comprehensive, networked remote
control, monitoring and DSP or the cost savings of a simple, straightforward
analog input configuration.
• Class D (PL380) and Class H (PL340 & PL325) topology provide efficient
high power performance.
• Three-position Input Sensitivity switch simplifies integration of PowerLight 3
amplifiers into existing amp racks and power systems.
• User defeatable clip limiters and selectable low-frequency filters (30 Hz, 50
Hz, Bypass).
• DataPort connection supports external amplifier control and/or
the DSP-4 module.
• Zero signal latency between the DataPort and compatible devices such as
the DSP-4 rear panel module, Q-Sys™or QSControl.net™BASIS™units.
• XLR and Block Input connectors and Binding post or Neutrik speakON®
Output connectors.
• Comprehensive internal protection protects amplifiers and loudspeakers
against over-current, over-temperature and clipping –without compromising
program signal.
PowerLight™3 Series
Concert Systems / Installed Sound
Watts per channel
Model 8Ω4Ω2Ω
PL325 500 850 1250
PL340 800 1250 2000
PL380 1500 2500 4000
EIA 1 kHz, 1% THD
*Burst mode testing required due to AC service current limitations
As part of QSC’s ongoing commitment to product development,
specifications are subject to change without notice.
PL325 and PL340
PL380

16 17Amplifiers Amplifiers
CMXa Series amplifiers represent an economical and rugged power
amplifier solution for installed sound applications. There are four CMXa
models to choose from (CMX 300Va, CMX 500Va, CMX 800Va, and CMX
2000Va). The CMX amplifiers provide flexible input and output
connectors making them ideal for use in projects such as performance
halls, houses of worship, sport clubs, gymnasiums, dance venues, pubs,
and FGM/BGM systems. The CMXa Series provides unmatched
performance and user ability at an affordable price point.
• Flexible output loading options enable low impedance loads
comfortably down to 2Ω, and in some configurations will effortlessly
drive 70V /100V lines.
• Recessed front panel gain controls with 1 dB detents for fast and
accurate level settings.
• Security plate cover for gain controls to provide tamper-proof protection.
• Recessed rear DIP switches for easy selection between stereo, parallel,
or bridged mode operation, and the additional choice of enabling/
disabling low frequency filter protection.
• Balanced XLR, TRS or Barrier Strip parallel inputs and NL4 or detachable
Block output connectors.
CMXa Series
Installed Sound
Watts per channel
Stereo Bridged Stereo Bridged
Model 70V 100V 70V 100V 8Ω4Ω2Ω* 4Ω*
CMX 300Va - - 600 - 200 300 430 830
CMX 500Va - - 1200 600 300 500 700 14 00
CMX 800Va 400 - 2000 2300 500 800 1200 2400
CMX 2000Va 2500 1000 - 3600 1100 2000 2500 5000
1 kHz, 0.1% THD *1 kHz, 1% THD
As part of QSC’s ongoing commitment to product development,
specifications are subject to change without notice.
CMX 2000Va (3RU Models)
CMXa 2RU Models

18 19Amplifiers Amplifiers
RMXa Series amps are built upon the proven RMX amplifier line combining
legendary QSC reliability and audio performance in a cost effective power
amplifier solution. For mid-power applications, the 2RU (RMX 850a, RMX
1450a, RMX 2450a) models feature 4Ωpower ratings from 300 to 800
watts per channel. For premium loudspeaker systems with extremely high
power capacity, the 3RU (RMX 4050a & RMX 5050a) models offer
unsurpassed value and performance.
• Front panel gain controls for fast and accurate level settings.
• Recessed rear DIP switches for easy selection between stereo, parallel, or
bridged mode operation, and the additional choice of enabling/disabling
low frequency filter protection.
• Balanced XLR, TRS or Barrier Strip parallel inputs with loop-through
capability and NL4 or Binding Post output connectors.
• Independent, defeatable clip limiters reduce distortion and
protect speakers.
• Selectable low-frequency filters (30 or 50 Hz) protect speakers
and increase headroom.
• Flexible output loading options that allow you to drive low
impedance loads down to 2Ω.
• Five models to choose from with power ranges from 300W to
2000W per channel at 4Ω.
RMXa Series
Entertainers | Musicians | DJs | Concert Systems
RMXa 3RU Models
RMXa 2RU Models
Watts per channel
Stereo Bridged
Model 8Ω4Ω2Ω* 4Ω
RMX 850a 200 300 430 830
RMX 1450a 300 500 700 1400
RMX 2450a 500 800 1200 2400
RMX 4050a 850 1400 2000 4000
RMX 5050a 1100 2000 2500 5000
1 kHz, 0.5% THD *1 kHz, 1% THD
As part of QSC’s ongoing commitment to product development,
specifications are subject to change without notice.

20 21Amplifiers Amplifiers
PLX2 is a powerful, lightweight amplifier line designed to meet the rigorous
demands of live musicians, and mobile entertainers. The “02” models
(1802, 2502, 3102, 3602) can drive loads down to 2Ωand include
subwoofer or satellite crossover settings. For applications not requiring
bridging, 2Ωoperation, or internal subwoofer signal processing, “04”
models (1104, 1804) deliver the same audio performance in a lighter-
weight, cost-effective unit. With third generation PowerLight™technology,
PLX2 amplifiers deliver superb audio quality with powerful low-frequency
performance and feature a professional appearance with a die-cast
aluminum front panel acting as an integral I-beam, to create an extremely
rugged, road-worthy device.
• Active Inrush Limiting prevents AC mains circuit breakers from
popping during turn-on.
• Front panel gain controls (1 dB detents) allow precise input
sensitivity adjustment.
• Front panel LED status indicators enable system monitoring
and troubleshooting.
• Balanced XLR and ¼" TRS parallel inputs accommodate the most
commonly used input connectors for live sound and support loop-
through routing.
• speakON®NL4 output connectors provide a positive-locking speaker
connection. Channel 1’s output can use all four wires to connect to
bi-amplified speakers with a single cable.
• Selectable low-frequency filter (33 Hz) protects speakers and
increases headroom.
PLX2 Series
Entertainers | Musicians | DJs | Concert Systems
Watts per channel
Stereo Bridged
Model 8Ω* 4Ω* 2Ω** 4Ω**
PLX1804 325 550 – –
PLX1804 600 900 – –
PLX1802 330 575 900 1800
PLX2502 450 750 1250 2500
PLX3102 600 1000 1550 3100
PLX3602 775 1250 1800 3600
*1 kHz, 0.1% THD, both channels driven
**1 kHz, 1% THD, both channels driven
As part of QSC’s ongoing commitment to product development,
specifications are subject to change without notice.
PLX2 “04” Models
PLX2 “02” Models

22 23Amplifiers Amplifiers
GXD Series – Processing Amplifier
Installed Sound
The GXD Series amplifiers from QSC define the new amp standard
for professional entertainers who require lightweight amplifiers with
unmatched performance and flexibility at an affordable price point.
This high performance line consists of two amplifiers, the GXD4 and
GXD8, each providing enormous Class-D power in a lightweight and
efficient package. The universal switchmode power supply helps reduce
the weight, increase efficiency, and ensures rock-solid continued
operation even with poor power conditions. The addition of on-board
DSP processing with an easy-to-use interface offers powerful tools like
Crossover and EQ filters, Delay, and Power Limiting that allow the
user to configure the amplifier and maximize the performance of their
loudspeakers. The GXD Series amplifiers are engineered to meet any
demanding application and provide excellent power and legendary QSC
reliability, in an efficient, lightweight, and flexible package; bottom line,
the GXD amplifiers provide outstanding value!
• Parallel XLR and 1/4” TRS input connectors for compatibility with
any source while providing convenient loop-thru capability.
• Professional NL4 and Binding Post output connectors provide
mono and bi-amp speaker connectivity.
• Front panel LEDs monitor, Power, Signal and Clipping.
• Large LCD display with dual rotary encoders for fast and simple
set-up and on-screen monitoring of the output levels.
• Total power of 4500W and 1600W means real power for your
application.
• Extensive and powerful loudspeaker processing to maximize
loudspeaker performance, that includes, Crossover and
Parametric EQ filters, Delay, and Power Limiting.
• Power levels matched to the most popular loudspeakers and
optimized for the maximum real-world headroom into 4Ωand
8Ωloudspeakers.
• Class-D output power with a universal switchmode power supply
for high performance and efficiency, as well as light weight.
Watts per channel
Model 8Ω Power/Channel 4Ω Power/Channel Max Total Peak Power
GXD4 400 600 1600
GXD8 800 1200 4500
Both channels driven. 1kHz, onset of clipping
As part of QSC’s ongoing commitment to product development,
specifications are subject to change without notice.

24 25Amplifiers Amplifiers
GX Series amplifiers offer maximum performance, portability and reliability
and a cost effective price. Ideally suited for use by entertainers, musicians
and DJs, the GX line features three models; the GX3 (300W), the GX5
(500W) and the GX7 (700W) each uniquely designed to supply optimal
power to the sound reinforcement loudspeakers most often used by
entertainment professionals. A built-in crossover facilitates the use of
subwoofers while front panel gain controls allow easy access for balancing
the sub with the full-range cabinet. GuardRail™optimizes peak power and
protects the system during the most demanding applications.
• Power levels matched to the most popular speakers used
by entertainers.
• Optimized for maximum real-world headroom into 4Ω
and 8Ωspeaker systems.
• XLR, ¼" TRS and phono input connectors.
• speakON®combo and Binding post output connectors.
• Detented gain controls for precise setting and matching
of sensitivity.
• Lightweight – GX3 and GX5 less than 26 lb (12.5 kg);
GX7 only 15.5 lb (7 kg).
GX Series
Entertainers | Musicians | DJs
Watts per channel
Model 8Ω4Ω
GX3 300 425
GX5 500 700
GX7 725 1000
Both channels driven. 1kHz, onset of clipping
As part of QSC’s ongoing commitment to product development,
specifications are subject to change without notice.
GX5

26 27Amplifiers Amplifiers
ISA amplifiers are an ideal, cost-effective solution for fixed installation
applications requiring distributed loudspeakers. There are seven models in
the line, four low impedance models (ISA 280, ISA 450, ISA 750, ISA 1350)
rated down to 2-ohm loads and three “Ti” versions (ISA 300Ti, ISA 500Ti,
ISA 800Ti) featuring isolated transformers for 25, 70 and 100 volt
distributed audio systems. The DataPort V2 Lite connection facilitates the
use of amplifier accessories (XC-3, LF-3 and SF-3.) providing economical
crossover and subwoofer filtering solutions.
• Up to 2400W total output power.
• 3RU chassis with rear-mounted gain controls featuring
2 dB detents.
• Independent, defeatable clip limiters reduce distortion
and protect speakers.
• Selectable high-pass filters protect against transformer
saturation and driver overexcursion.
• Includes extensive DC, infrasonic, thermal overload,
and short circuit protection.
• XLR and 3-pin Block input connectors and touch-proof
barrier-strip outputs.
• DataPort V2 connector not compatible with Q-Sys,
BASIS or CM16a.
ISA Series
Installed Sound
Watts per channel
Model 70V* / 100V 8Ω** 4Ω** 2Ω†
ISA280 - 185 280 430
ISA450 - 260 425 700
ISA750 - 450 650 1200
ISA1350 1500†† 800 1300 2000
ISA300Ti 300 185 280 430
ISA500Ti 500 260 425 700
ISA800Ti 800 450 650 1200
*50 Hz – 16 kHz, 0.5% THD **20 Hz – 20 kHz, 0.1% THD †1 kHz, 1% THD
††Direct Output, 70V, less than 0.1% THD, 20 Hz – 20 kHz, +0/-0.3 dB
As part of QSC’s ongoing commitment to product development,
specifications are subject to change without notice.
ISA 500Ti

28 29Amplifiers Amplifiers
The XC-3 is an active, 2-way crossover module
that mounts to the rear panel DataPort of select
2-channel QSC amps (DCA,PL2, PL3, CX, ISA). A
3-way crossover can be implemented using the
XC-3’s low-frequency high-pass filter with the LF-3.
The LF-3 low-frequency filter, when used with the XC-3
2-way crossover, creates a 3-way active crossover
system. Mounting to the rear panel of select, 2-channel
QSC amps (DCA, PL2, PL3, CX, ISA), the LF-3 is
comprised of two discrete channels with 4th order
Linkwitz-Riley low-pass filters (24 dB/octave slope).
The SF-3 provides subwoofer signal processing
without the need for a conventional crossover.
To conserve cost and rack space, the unit mounts
to the rear panel DataPort of select 2-channel QSC
amps (DCA, PL2, PL3, CX, ISA).
• 4th order Linkwitz-Riley filters (24 dB/octave),
low frequencies routed to channel 1 and highs to channel 2.
• All-pass filter delay for time alignment of low- and high-frequency drivers
• Trim control (0-20 dB attenuation) to balance the frequency bands.
• High-frequency channel offers boosts up to 10 dB for equalizing constant-
directivity horns.
• Delay on each channel for loudspeaker time-alignment
• Trim control (0-20 dB of attenuation) to match levels.
• One amp-mounted LF-3 can support up to three amplifiers (including in
stereo) with XC-3 installed accessories
• 4th order Linkwitz-Riley low-pass filter may be set to 80, 150 or 250 Hz.
• Subsonic filter offers roll-off frequencies in the range 20-50 Hz to prevent
driver over-excursion.
• Trim control (0-20 dB of attenuation) allows balancing the various
frequency bands.
Amplifier Accessories
XC-3 2-way Crossover | SF-3 Subwoofer Filter |
LF-3 Low-Frequency Filter

30 31Loudspeakers Loudspeakers
Ideal for portable/production and installed sound applications,
K Series loudspeakers feature a 1,000 watt, Class D power module
and onboard DSP that deliver levels of sonic clarity and total output
that exceed expectations for systems of this size and weight. With
three full-range models in the line (K8, K10 and K12) plus a
subwoofer (KSub), users can select a model based on desired
coverage angle for optimum performance.
K Series Active Loudspeakers
Portable/Production & Installed Sound
• Combo XLR / 1/4" TRS inputs.
• Direct thru-puts and balanced summed output.
• RCA inputs (full-range models).
• On-board mixing of up to three audio sources.
• DEEP™provides extended low-frequency performance.
• Intrinsic Correction™ensures a flat sonic response.
• Rugged ABS enclosures (full-range models) with professional appearance.
• Monitor deployment angles on K10 and K12 models.
• Integrated M10 suspension points on full range models.
™
K8 K10
Frequency Range (-10 dB) 61 Hz – 20 kHz 56 Hz – 20 kHz
Nominal Coverage (-6 dB) 105° conical 90° conical
Output 1 (Peak SPL @ 1M) 127 dB 129 dB
Amplifier Power 1000 W continuous Class D 1000 W continuous Class D
Current Consumption
1/8 Power 2 100 VAC, 2.3 A • 120 VAC, 2.01 A • 230 VAC, 1.13 A
Driver Information
LF
HF
8" cone transducer
1.75" diaphragm
compression driver
10" cone transducer
1.75" diaphragm
compression driver
Input Connectors Balanced female XLR / 1/4" mic/line level input • Balanced female
XLR / 1/4" line level input • 2 x RCA (Phono)
Enclosure Impact-resistant ABS Impact-resistant ABS
Net Weight 27 lb / 12.2 kg 32 lb / 14.5 kg
K12 KSub
Frequency Range (-10 dB) 48 Hz – 20 kHz 44 Hz – 148 Hz
Nominal Coverage (-6 dB) 75° conical N/A
Output 1 (Peak SPL @ 1M) 131 dB 130 dB
Amplifier Power 1000 W continuous Class D 1000 W continuous Class D
Current Consumption
1/8 Power 2 100 VAC, 2.3 A • 120 VAC, 2.01 A • 230 VAC, 1.13 A
Driver Information
LF
HF
12" cone transducer
1.75" diaphragm
compression driver
Dual 12" cone transducers
N/A
Input Connectors
Balanced female XLR / 1/4" mic/
line level input • Balanced female
XLR / 1/4" line level input • 2 x
RCA (Phono)
Dual balanced female XLR / 1/4"
line level input
Enclosure Impact-resistant ABS Painted birch plywood
Net Weight 41 lb / 18.6 kg 74 lb / 33.6 kg
1 Calculated for 1 m, based on sensitivity (full-space for full range systems and half-space for LF-only and
subwoofer systems) and peak power capability of amplifier.
2 1/8 power is representative of current draw with typical music program material with occasional clipping.
As part of QSC’s ongoing commitment to product development, specifications are subject to change without notice.

32 33Loudspeakers Loudspeakers
Built on the highly successful K Series platform, KW Series
loudspeakers feature a 1,000 watt, Class D power module with
onboard DSP housed in all birch wooden enclosures that deliver
superior levels of sonic clarity and total output. With three full-range
models in the line (KW122, KW152 and KW153) plus a subwoofer
(KW181), users can select a model based on desired coverage angle
for optimum performance.
KW Series Active Loudspeakers
Portable/Production & Installed Sound
• Combo XLR / 1/4" TRS inputs.
• Variable mic/line input gain.
• Direct thru-puts and balanced summed output.
• RCA inputs (full-range models).
• On-board mixing of up to three audio sources.
• DEEP™provides extended low-frequency performance.
• Intrinsic Correction™ensures a flat sonic response.
• All birch plywood enclosures.
• Integrated M10 suspension points on full range models.
™
KW122 KW152
Frequency Range (-10 dB) 50 Hz – 20 kHz 43.7 Hz – 20 kHz
Nominal Coverage (-6 dB) 75° conical 60° conical
Output 1 (Peak SPL @ 1M) 131 dB 133 dB
Amplifier Power 1000 W continuous Class D 1000 W continuous Class D
Current Consumption
1/8 Power 2 100 VAC, 2.3 A • 120 VAC, 2.01 A • 230 VAC, 1.13 A
Driver Information
LF
HF
12" cone transducer
1.75" diaphragm
compression driver
15" cone transducer
1.75" diaphragm
compression driver
Input Connectors Balanced female XLR / 1/4" mic/line level input •
Balanced female XLR / 1/4" line level input •
Enclosure Painted Birch Plywood Painted Birch Plywood
Net Weight 49 lb / 22.2 kg 64 lb / 29 kg
KW153 KW181
Frequency Range (-10 dB) 33 Hz – 20 kHz 34 Hz – 143 Hz
Nominal Coverage (-6 dB) 75° conical N/A
Output 1 (Peak SPL @ 1M) 131 dB 130 dB
Amplifier Power 1000 W continuous Class D 1000 W continuous Class D
Current Consumption
1/8 Power 2 100 VAC, 2.3 A • 120 VAC, 2.01 A • 230 VAC, 1.13 A
Driver Information
LF
MF
HF
15" cone transducer
6.5" mid range cone transducer
1.75" diaphragm
compression driver
18" cone transducer
N/A
N/A
Input Connectors
Balanced female XLR / 1/4"
mic/line level input • Balanced
female XLR / 1/4" line level
input •
Dual balanced female XLR / 1/4"
line level input
Enclosure Painted Birch Plywood Painted Birch Plywood
Net Weight 41 lb / 18.6 kg 74 lb / 33.6 kg
1 Calculated for 1 m, based on sensitivity (full-space for full range systems and half-space for LF-only and
subwoofer systems) and peak power capability of amplifier.
2 1/8 power is representative of current draw with typical music program material with occasional clipping.
As part of QSC’s ongoing commitment to product development, specifications are subject to change without notice.

34 35Loudspeakers Loudspeakers
The KLA Series brings the power and sophistication of a line array system
into an easy-to-use product, significantly redefining the line array product
category. With its simple “Lift, Click and Play” approach, KLA can be
deployed in a fraction of the time required by comparable line array
products. This fixed arcuate, active line array system is ideal for a wide range
of portable and permanently installed applications ranging from live
entertainment to houses of worship or other venues where a line array
system is desired.
KLA Series Active Loudspeakers
• 1,000 Watt Class D power module.
• Integrated XLR input with loop thru.
• 90˚ x 18˚ coverage (each enclosure).
• Integrated, easy-to-use rigging hardware allows for quick deployment.
• Ar-Q™(Arcuate Equalization) enables quick tuning of an array with the
click of a switch.
• DEEP™provides extended low-frequency performance.
• Intrinsic Correction™ensures a flat sonic response.
• KLA12 features an ABS enclosure and KLA181 features a birch enclosure.
• Integrated M10 suspension points.
KLA12 KLA181
Frequency Range
(-10 dB) 44 Hz – 20 kHz 33 Hz
Nominal Coverage
(-6 dB) 90 x 18 degree N/A
Output 1
(Peak SPL @ 1M) 131 dB 135 dB
Amplifier Power 500 W x 500 W continuous 1000 W continuous Class D
Current Consumption
1/8 Power 2 100 VAC, 2.3 A • 120 VAC, 2.01 A • 230 VAC, 1.13 A
Transducers
LF
HF
12" cone transducer
1.75" diaphragm
compression driver
18" cone transducer
N/A
Input Connectors Balanced female XLR line level input •
Enclosure Impact resistant ABS Painted birch plywood
Net Weight 55 lbs / 25.0 kg 104 lbs / 47.2 kg
1 Calculated for 1 m, based on sensitivity (full-space for full range systems and half-space for LF-only and
subwoofer systems) and peak power capability of amplifier.
2 1/8 power is representative of current draw with typical music program material with occasional clipping.
As part of QSC’s ongoing commitment to product development, specifications are subject to change without notice.
Portable/Production & Installed Sound
™

36 37Loudspeakers Loudspeakers
K Family Accessories
Totes, Covers, etc
Available K Series Accessories
• K8 Tote
• K10 Tote
• K12 Tote
• KSub Cover
• K8 Yoke
• K10 Yoke
• K12 Yoke
• K8 Outdoor Cover
• K10 Outdoor Cover
• K12 Outdoor Cover
• K Series Pole Extension
• M10 Kit-C
Available KW Series Accessories
• KW122 Cover
• KW152 Cover
• KW153 Cover
• KW181 Cover
• M10 Kit-W
• KW Suspension Kit 122
Available KLA Series Accessories
• KLA12 Tote
• KLA181 Cover
• KLA AF12 Array Frame Tote
• KLA AF12 Array Frame
• M10 Kit-C