QSC CX404 เพาเวอร์แอมป์ เครื่องขยายเสียง  4-ch Low-Z Power Amplifier 250+250w. @ 8 ohms,400+400w. @ 4 ohms, 500w.@ 16 ohms, Bridged Mono Mode

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
• Bridgeable channels 1 + 2 and 3 + 4, 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.

Power

• 8 ohms, Stereo Mode, Both Channels Driven: 250W
• 4 ohms, Stereo Mode, Both Channels Driven: 400W
• 2 ohms, Stereo Mode, Both Channels Driven: notrecommended
• 16 ohms, Bridged Mono Mode: 500W
• 8 ohms, Bridged Mono Mode: 800W
• 4 ohms, Bridged Mono Mode: not recommended

CX404 Specifications

• Input Impedance: 6k ohms unbalanced, 12k ohmsbalanced
• Input Connectors, each channel: 3 position Euro-styledetachable barrier block, Ch 1, 2, 3 & 4
• DataPort: HD-15 Connector, Ch 1+2, 3+4
• Output Connectors, each channel: Six-position barrierstrip with monitor connections, Ch 1+2, Ch 3+4
• Amplifier Protection: Full short circuit, opencircuit, thermal, ultrasonic, and RF protection. Stable into reactive ormismatched loads
• Load Protection: On/Off muting, DC-fault power supplyshutdown
• Dimensions (W x H x D): 19" x 3.5" x 14" (2 RU)
• Weight: 21 lbs net, 27 lbs shipping