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P R O F E S S I O N A L   P O W E R   A M P L I F I E R S

P R O F E S S I O N A L   P O W E R   A M P L I F I E R S

CX

CX

Detachable Euro style input connectors

DIP switch control for clip limiters,high pass filters,bridge-mono and parallel operation

Exclusive PowerWave switch-mode power supply 
technology for high  performance and compact size

Selectable high-pass filters protect speakers and prevent speaker transformer saturation with
minimal effect on program material (33 Hz or 75 Hz on non-V models,50 Hz or 75 Hz on V models)

Comprehensive front panel indicators including signal,clip,protect and QSC’s exclusive 
bridge-mono and parallel-input LEDs

Barrier strip output connector

Comprehensive protection circuitry including DC,infrasonic,thermal overload
and  short circuit protection

High-performance Class AB+B complementary bipolar output circuitry

Light weight – all models only 21 pounds (9.5 kg) for easier racking and shipping

3-year warranty plus optional 3-year extended service contract

CX 4-Channel Features

Three models that range in power from 170 watts to 450 watts per channel

Compact size – all models only 2 RU and 14" deep for reduced rack cost 
and floor space

Channels 1&2 and 3&4 bridgeable for maximum flexibility

Active Inrush Limiting eliminates AC inrush current,removing the need 
for expensive power sequencers

HD15 DataPort connector for QSControl computer control 

Custom integrated security cover for tamper-proof installations

Variable speed fan for low noise

1 dB detented gain controls for fast and accurate gain settings

The new 4-channel CX amplifiers give you four

channels in only two rack spaces—without 

compromising on power. Choose from three

models—a direct 70-volt model and two-low

impedance versions—each equipped with our

exclusive PowerWave

switching power supply

technology to virtually eliminate noise and

hum. With high output power,versatile loading

options, high thermal capacity and unmatched

reliability,the CX Series is the perfect solution

to any permanently installed sound system.

1675 MacArthur Boulevard
Costa Mesa, CA 92626
Ph: 800/854-4079 or 714/957-7100
Fax: 714/754-6174

www.qscaudio.com   
email: [email protected]

20 Hz-20 kHz, .05% THD     † 1 kHz, 0.1% THD      *1 kHz, 1% THD

CX 4-CHANNEL AMPLIFIERS

Model 

70V

8

4

2

CX204V 200

x

4

• 

CX254

170

x

4 250

x

4 450

x

4

*

CX404

250

x

4 400

x

4

n/a

4-channel

4-channel

All models include 

an integrated

security cover 

for tamper-proof

installations.

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