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QSC Audio CX204V 70V 4 Channel Stereo Power Amplifier 200W / Channel




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QSC CX204V
CX204V

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Features:

QSC CX204V 70V 4 Channel Stereo Power Amplifier

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 PowerLight® 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.


PowerLight technology, CX amplifiers take your sound to a whole new level. Not only does it give you tighter bass and clean transparent highs, PowerLight also cuts waste heat, boosts reliability and gets rid of unwanted noise and hum. PowerLight is a revolutionary switching power supply technology that provides ample current to the audio power circuitry by charging the supply rails 230,000 times a second through an ultra-low impedance circuit. So unlike amplifiers that use conventional supplies, the audio signal is never starved prematurely and remains crisp and clean.

 

  • 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 Q-Sys and QSControl computer 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 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
  • All CX Series amplifiers meet the European Union's, 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices.

 

Download QSC CX-4 Channel Data Sheet

Download QSC CX2-CX4 Manual

 

 

SPECIFICATIONSCX204VCX254CX404
 STEREO MODE (All Channels Driven)
8 ohms 20 Hz-20 kHz 0.05% THD-170W250W
4 ohms 20 Hz-20 kHz 0.05% THD-250W400W*
2 ohms 1 kHz 1% THD-450Wnot recommended
70V 20 Hz-20 kHz 0.05% THD200W--
70V 1 kHz 0.05% THD220W--
70V 1 kHz 1% THD300W--
 BRIDGED MONO MODE
16 ohms 20 Hz-20 kHz 0.1% THD-340W500W
8 ohms 20 Hz-20 kHz 0.1% THD-500W800W*
4 ohms 1 kHz 1% THD-900Wnot recommended
140V 20 Hz-20 kHz 0.1% THD400W--
140V 1 kHz 0.05% THD440W--
140V 1 kHz 1% THD600W--
Noise, 20Hz-20kHz<-105 dB<-106 dB<-106 dB
Input Sensitivity1.26Vrms1.22Vrms1.22Vrms
Gain (for full-rated output power)35 dB @ 70.7V29 dB @ 8 ohms31 dB @ 8 ohms
Input Clipping10 Vrms (+22 dB)10 Vrms (+22 dB)10 Vrms (+22 dB)
Output CircuitryAB+BAB+BAB+B
Distortion (SMPTE-IM)Less than 0.02%Less than 0.01%Less than 0.01%
 ALL MODELS
Distortion (Typical)
20 Hz-20 kHz: 10 dB below rated power
1.0 kHz and below: full rated power

Less than 0.01% THD
Less than 0.01% THD
Frequency Response (typical)20 Hz-20 kHz, ± 0.2 dB   8 Hz-50 kHz, +0/-3 dB
Damping Factor
Greater than 500 (1 kHz and below)
Input Impedance
6k ohms unbalanced, 12k ohms balanced
Cooling
Variable speed fan, rear to front airflow through tunnel heat sink
Connectors, each channel


 
Input: 3 position Euro-style detachable barrier block, Ch 1,2,3 & 4
DataPort: HD-15 Connector, Ch 1+2, Ch 3+4
Output: Six-position barrier strip with monitor connections, Ch 1+2, Ch 3+4
Amplifier Protection

 
Full short circuit, open circuit, thermal, ultrasonic, & protection. Stable into reactive or mismatched loads.
Load Protection
On/off muting, DC-fault power supply protection
Indicators
PARALLEL INPUTS: Red LED
BRIDGED: Yellow LED
PWR-ON: Green LED
CLIP/PROT: Red LED (1 per channel)
LEVEL-10 dB: Yellow LED (1 per channel)
LEVEL-20 dB: Yellow LED (1 per channel)
SIGNAL -35 dB: Green LED (1 per channel)
Controls



 
Controls Front: AC switch, Ch.1 and Ch.2 gain knobs
Rear: DIP switch for Ch.1 and Ch.2: clip limiter on/off, LF filter on/off,
LF filter freq select 33 Hz or 75 Hz for non-V models; 50 Hz or 75 Hz for V models; inputs parallel or stereo; bridge mode
Dimensions

 
19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 rack spaces),
14" (35.6 cm) deep (from front mounting rails)
Weight
21 lb (9.5 kg) net, 27 lbs (12.3 kg) Shipping
Power Requirements
100, 120, 230 Vac, 50-60 Hz