QSC CX404 4-Channel Power Amp with Powerwave

The QSC CX404 4-channel Professional Power Amplifier 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 model is equipped with exclusive QSC 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. Includes: QSC CX404 4-channel Professional Power Amplifier - Integrated Security Cover - QSC 3 Year Warranty Features: 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 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 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 - all models only 21 pounds (9.5 kg) for easier racking and shipping Specifications: Stereo Mode (all channels driven): 8Ohms / 20 Hz - 20 kHz / 0.05% THD: 250 W
4Ohms / 20 Hz - 20 kHz / 0.05% THD: 400 W (0.1% THD, 1 kHz) Bridge-Mono Mode: 16Ohms / 20 Hz - 20 kHz / 0.1% THD: 500 W
8Ohms / 20 Hz - 20 kHz / 0.1% THD: 800 W (0.1% THD, 1 kHz) Noise (20 Hz - 20 kHz): -106 dB Input Sensitivity: 1.22 Vrms Gain: 31 dB at 8Ohms Input Clipping: 10 Vrms (+22 dBu) Output Circuitry: Class AB+B Distortion: SMPTE-IM: < 0.02% Typical 20 Hz - 20 kHz: 10 dB below rated power: < 0.01% THD
Typical 10 kHz and below: full rated power: < 0.01% THD Damping Factor: > 500 (1 kHz and below) Input Impedance: 6kOhms unbalanced, 12kOhms balanced Cooling: Variable-speed fan /rear-to-front air flow 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 dual channel and bridge mono connections, Ch 1+2, Ch 3+4 Controls: Front: AC switch, Ch 1, 2, 3 & 4 gain knobs
Rear: DIP switch for Ch 1, 2, 3 & 4, clip limiter on/off, LF filter on/off, LF filter freq select 33 Hz or 75 Hz
Inputs parallel or stereo, bridge mode Indicators: Parallel Inputs: Yellow LED / Bridged: Yellow LED/ Power-on: Green LED Clip-Prot: Red LED / Level -10dB: Green LED / Level -20dB: Green LED / Signal -35dB: Green LED (1 per channel) Amplifier Protection: Full short circuit, open circuit, thermal, ultrasonic and RF protection. Stable into reactive or mismatched loads Load Protection: On/off muting, DC-fault power supply shutdown Power Requirements: 100, 120, 230 VAC, 50 - 60 Hz (configured at factory) 120V Current Consumption: 0.7 A: Idle 1/8 power pink noise: 8.1 A at 8Ohms, 12.4 A at 4Ohms, NR at 2Ohms
1/3 power pink noise: 12.2 A at 8Ohms, 19.3 A at 4Ohms, NR at 2Ohms Dimensions (H x W x D): 3.5 / 88.90mm 2 RU x 19 / 482.60mm rack mounting x 14 / 355.60mm from front mounting rails Weight: 21lbs / 9.53kg