QSC CX404 Installation 4-Channel Power Amplifier (400W)

BH #QSCX404 • MFR #CX404
QSC
QSC CX404 Installation 4-Channel Power Amplifier (400W)
Key Features
  • 400W RMS per Channel at 4 Ohms
  • 800W RMS Bridged at 8 Ohms
  • Euro-Style Barrier Block Inputs
  • Barrier Strip Outputs
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The QSC CX404 Installation 4-Channel Power Amplifier is a 2 RU power amplifier designed for commercial sound reinforcement applications such as retail outlets, restaurants, performance halls, houses of worship, sports clubs, gymnasiums, pubs, and more. The amplifier uses PowerLight switch-mode power supply technology for high performance and compact size.
Special Order
Expected availability: 3-7 business days
$1,835.00
$39/mo. with 0% interest for 48 mos.^
48 equal monthly payments required, offer ends Jan 31, 2021.

QSC CX404 Overview

The QSC CX404 Installation 4-Channel Power Amplifier is a 2 RU power amplifier designed for commercial sound reinforcement applications such as retail outlets, restaurants, performance halls, houses of worship, sports clubs, gymnasiums, pubs, and more. The amplifier uses PowerLight switch-mode power supply technology for high performance and compact size.

The output section features a Class-AB+B architecture with bipolar circuitry. The amplifier offers full protection from DC, infrasonic & ultrasonic frequencies, thermal overload, and short circuits. Automatic current limiting protects the amplifier from damage until the short is corrected. The DC protection systems prevent loudspeaker damage in the unlikely event of an output transistor failure. DC voltage from the power supply is never passed directly to your speakers, even in case of an output circuit breakdown.

The rear panel provides four detachable Euro-style input connectors and dual six-position barrier strips with dual-channel and bridge mono output connections. There are DIP switch controls for clip limiters, bridge, mono, and parallel operation, as well as selectable high-pass filters which offer 33 and 75 Hz settings and protect against speaker transformer saturation with minimal effect on program material. The QSC CX404 includes a power cord and a security plate.

  • Compact: 2 RU and 14" deep for reduced rack cost and floor space
  • Bridgeable channels 1 + 2 and 3 + 4, for maximum flexibility
  • Active inrush limiting eliminates AC inrush current, removing the need for expensive power sequencers
  • Two HD15 DataPort connectors for Q-SYS networked control and monitoring
  • 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
  • Detachable Euro-style input connectors
  • DIP switch control for clip limiters, high pass filters, bridge mono, and parallel operation
  • Exclusive PowerLight 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 or 75 Hz)
  • 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
  • Lightweight: Only 21 pounds for easier racking and shipping
  • Meets the European Union's 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices

 

UPC: 684284001498

QSC CX404 Specs

Power Amplifier
Number of Channels4
Power Rating4 Ohms:
400 W RMS per Channel
8 Ohms:
250 W RMS per Channel
800 W RMS Bridged
16 Ohms:
500 W RMS per Channel
Performance
ProtectionsDC Fault, On/Off Muting, Open Circuit, RF, Reactive/Mismatched Load, Short Circuit, Thermal, Ultrasonic
Frequency Response20 Hz to 20 kHz ±0.2 dB
8 Hz to 50 kHz +0/-3 dB
Damping Factor>500
Input Sensitivity1.22 V / +3.9 dBu (at 8 Ohms)
1.16 V / +3.5 dBu (at 4 Ohms)
Input Impedance12 Kilohms (Balanced)
6 Kilohms (Unbalanced)
Max Gain31 dB (at 8 Ohms)
SNR<-106 dB
THD<0.01% (Full Range, at Rated Power -10 dB)
<0.01% (1 kHz, at Rated Power)
Intermodulation Distortion<0.01% (SMPTE)
Signal Processing
FiltersHigh-Pass:
33 Hz / 75 Hz
LimitingClip
Connectivity
I/O2 x Barrier Strip 6-Pin Output
4 x Euroblock 3-Pin Input
Digital I/O2 x DE-15/DB-15 DataPort
Power
AC Input Power120 VAC, 60 Hz
Current Consumption0.7 A (Idle)
8 Ohms:
8.1 A (1/8 Power)
12.2 A (1/3 Power)
4 Ohms:
12.4 A (1/8 Power)
19.3 A (1/3 Power)
Physical
Display & Indicators1 x Red LED (Stereo Mode)
1 x Yellow LED (Bridged Mode)
1 x Green LED (Power)
1 x Red LED (Clip/Protect, per Channel)
2 x Yellow LED (Level, per Channel)
1 x Green LED (Level, per Channel)
CoolingFan (Variable Speed)
Heatsink
Dimensions3.5 x 19.0 x 14.0" / 88.9 x 482.6 x 355.6 mm
Weight21 lb / 9.5 kg
Packaging Info
Package Weight27.3 lb
Box Dimensions (LxWxH)24 x 18 x 6"
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