Q-SYS DCA3422 2-Channel Digital Cinema Audio Amplifier

Crystal-clear, seat-shaking cinema sound is here with the DCA Series Digital Cinema Amplifiers. Five 21 lb (9.5kg), two rack space models offer power points from 200 to 1700 watts per channel. The DCA3422 model with 1250 watts per channel at 4 ohms is ideal for powering subwoofer systems.

With QSC’s exclusive PowerLight™ switching technology you’ll hear ultra powerful bass and superior highs in every action scene. In addition to their superior performance, QSC packed these amplifiers with useful features and every input/output connector you’ll ever need.

With PowerLight technology, DCA amplifiers take your soundtracks to a whole new level. Not only does it give your movies bigger bass and cleaner highs, PowerLight also cuts wasted heat and boosts reliability. PowerLight is a switching power supply 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 high-powered amplifiers with conventional supplies, the audio signal is never starved prematurely, but remains crisp and clean.

DCA Series amplifiers also boast a set of useful features such as individually selectable clip limiters, subsonic filters and stereo, parallel, and bridged-mono operation. The amplifiers feature XLR, 1/4” TRS, and detachable terminal block input connectors, and outputs are both Neutrik Speakon® and safety shrouded barrier strips.

Features:

• Active Inrush Limiting - won't blow circuit breakers at turn-on
• Both speaker and monitor panel outputs
• Exclusive PowerLight power supply for great bass
• A hum-free noise floor and ultra-low distortion
• Only 3.5 inches high; even the most powerful systems can be built with only one rack
• DataPort interface for DCP Digital Cinema Processors and DCM Digital Cinema Monitors
• Patented Output Averaging™ short circuit protection
• 14-inch deep - works with standard depth racks for lower cost and less floor space
• Only 21 pounds, for easier racking and shipping - no need to remove amps from pre-wired systems before shipping
• Gain control security cover protects amp against tampering and misadjustment
• Variable-speed fan cooling and back-to-front air flow
• Neutrik Speakon® and safety-shrouded barrier strip output connectors
• LED indicators for metering, status, and operating mode

Specifications:

• Power Output:
  • 8Ω, 20 Hz–20 kHz, 0.03% THD: 700 W
  • 4Ω, 20 Hz–20 kHz, 0.05% THD: 1100 W
  • EIA (1 kHz, 1% THD):
    • 8Ω: 800 W
    • 4Ω: 1250 W
    • 2Ω: 1700 W
• Bridged Mono Mode:
  • 16Ω, 20 Hz–20 kHz, 0.1% THD: 1400 W
  • 8Ω, 20 Hz–20 kHz, 0.1% THD: 2200 W
  • 4Ω, 1 kHz, 1% THD: 3400 W
• Signal to Noise (20 Hz–20 kHz, unweighted): > 107 dB
• Input Sensitivity:
  • Full rated power @ 8 ohms: 1.9 V rms (+7.8 dBu)
  • Full rated power @ 4 ohms: 1.7 V rms (+6.8 dBu)
• Output Circuitry Class Type: 2-Step H
• Distortion (SMPTE-IM): < 0.02%
• Distortion (Typical):
  • 20 Hz–20 kHz: 10 dB below rated power
  • 1.0 kHz and below: full rated power
  • Less than 0.01% THD @ 8 and 4 ohms
• Frequency Response:
  • (LF filter switched off): 20 Hz–20 kHz, ± 0.2 dB
  • 8 Hz–50 kHz, + 0/-3 dB
• Damping Factor (1 kHz and below): Greater than 500
• Input Impedance: 10 kΩ unbalanced, 20 kΩ balanced
• Input Clipping: 10 V rms (+22 dBu)
• Cooling: Variable-speed fan, rear-to-front air flow
• Connectors (each channel):
  • Input: 1/4" TRS, 3-pin XLR, & 3-pin detachable terminal block
  • Output: Neutrik Speakon® and safety-shrouded barrier strip, including Monitor output
  • DataPort: One HD15
• Voltage Gain at 8 ohms: 40x (32 dB)
• Controls:
  • Front: AC switch, Ch. 1 and Ch. 1 recessed gain knobs
  • Rear: DIP switch
    • Clip Limiter on/off, each channel
    • LF Filter on/off, each channel
    • LF Filter Frequency select 30 or 50 Hz, each channel
    • Inputs Parallel or Stereo
    • Bridge Mode
• Indicators (1 each per channel):
  • CLIP/PROT: Red LED
  • LEVEL -10 dB: Green LED
  • LEVEL -20 dB: Green LED
  • SIGNAL -35 dB: Green LED
  • BRIDGED: Yellow LED
  • PARALLEL INPUTS: Yellow LED
  • POWER: Green LED
• 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
• Dimensions (HWD):
  • Inches: 3.5 x 19 x 14
  • Millimeters: 89 x 483 x 356
• Weight: 21 lb (9.5 kg) net