User Manual for QSC CX-204V 4 Channel Power Amplifier Click to enlarge the picture
Contents of the user manual for the QSC CX-204V 4 Channel Power Amplifier
- Product category: 70-Volt Amplifiers QSC
- Brand: QSC
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for QSC 70-Volt Amplifiers
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User manual for the QSC CX-204V 4 Channel Power Amplifier contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any QSC product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official QSC user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a QSC product will considerably shorten its lifespan!
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Product description The 70V CX-204V 4 Channel Power Amplifier from QSC is designed to provide power, portability and professional sound quality at an affordable price. It is used for reproducing audio in applications requiring background music such as restaurants, small offices, conference rooms and more. It features a 300W peak solid state amplifier, and four input channels in a 2 RU 14" deep enclosure. This amp has a 3-position Euro-style detachable barrier block. The barrier block has inputs for 1, 2, 3, and 4 input connections. In terms of outputs, it features a six-position barrier strip with monitor connections for channels 1+2, 3+4. There is also an HD-15 Data-Port connector for computer control and monitoring of the amp. The amplifier has LED indicators on the front panel showing level, clip/protect, bridged mode and power-on status. It is built with a front AC-switch and has four gain control knobs, one for each channel. The CX-204V has DIP switches for Channel 1 and 2 on the back and allows you to turn on or off features such as clip limiter, LF filter, frequency select, parallel inputs or stereo and bridge modes. This amp comes with a power cable and is RoHS compliant. - High-performance Class AB+B complementary bipolar output circuitry
- 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
- Active Inrush Limiting eliminates AC inrush current, removing the need for power sequencers
- Comprehensive protection circuitry including DC, infrasonic, thermal overload and short circuit protection
- Selectable high-pass filters protect speakers and prevent speaker transformer saturation
With minimal effect on program material up to 50 Hz or 75 Hz - The 18 mode DIP switches provide on or off selection for parallel inputs, clip limiter, frequency select, LF filter, stereo, and bridge modes
- Meets the European Union's 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices
UPC: 684284001085 In the Box QSC CX-204V 4 Channel Power Amplifier (70V) Power Cable Limited 3-Year Warranty Table of Contents
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Technical parametersQSC CX-204V Specs | Stereo Output | 70 V 20 Hz to 20 kHz 0.05% THD: 200 W
70 V 1 kHz 0.05% THD: 220 W
70 V 1 kHz 1% THD: 300 W | | Bridged Mono Output | 140 V 20 Hz to 20 kHz 0.1% THD: 400 W
140 V 1 kHz 0.05% THD: 440 W
140 V 1 kHz 1% THD: 600 W | | Input Sensitivity | 1.26 Vrms | | Gain Control Range | 35 dB @ 70.7 V | | Input Clipping Level | 10 Vrms (+22 dBu) | | Output Circuit | AB + B | | Distortion | SMPTE-IM: Less than 0.02%
Typical: 20 Hz to 20 kHz: 10 dB below rated power, Less than 0.01 % THD
1.0 kHz and Below: Full rated power, Less than 0.01% THD | | Frequency Response | 20 Hz to 20 kHz, ± 0.2 dB 8 Hz to 50 kHz, +0/-3 dB | | Damping Factor | Greater than 500 (1 kHz and below) | | Input Impedance | 6k Ω unbalanced, 12k Ω balanced | | Cooling | Variable speed fan, rear to front airflow through tunnel heat sink | | Connectors | 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, and 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
Power-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 | Front: AC switch, Ch. 1, 2, 3, 4 gain knobs
Rear: DIP switch for Ch. 1 and Ch. 2: clip limiter on/off, LF filter on/off
LF Filter Frequency Select: 50 Hz or 75 Hz; inputs parallel or stereo; bridge mode | | Power Requirements | 100, 120, 230 VAC, 50-60 Hz | | Dimensions (L x H x D) | 19 x 3.5 x 14" (48.3 x 8.9 x 35.6 cm) | | Weight | 21 lb (9.5 kg) | | | | Package Weight | 27.0 lb | | Box Dimensions (LxWxH) | 24.0 x 18.0 x 6.0" |
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