Q-SYS DCA1644 4-Channel Digital Cinema Audio Amplifier
The latest advances in sound system technology such as multi-channel immersive sound surrounds and tri-amplification require more amplifier channels than ever before. That’s why we designed our newest DCA amplifiers to give you four channels of power in a compact package that doesn’t eat up precious rack space. And, compared to the cost of two stereo amplifiers, you’ll find they leave more room in your budget as well. In addition to their superior performance we’ve packed these amps with useful features designed specifically for the cinema market.
Features:
- The DCA 1644 is perfect for powering screen channels in small to medium theatres, or for powering mids and highs in tri-amp systems for larger theatres.
- DCAs are equipped with a DataPort for use with DCM/DCP - Digital Cinema Monitor; Digital Cinema Processor, a total system solution that greatly reduces labor & wiring costs.
- Compact size (2-RU, 14-inch deep) ideal for use in console-mounted sound systems
- All models weigh only 21 pounds, for easier racking and shipping.
- Active Inrush Limiting won't blow circuit breakers at turn-on.
- Gain control security cover protects amp from misadjustment.
- 3 year warranty plus optional 3 year extended service contract!
Specifications:
- 8Ω, 20 Hz–20 kHz, 0.03% THD: Continuous Avg. output per channel 250 W
- 4Ω, 20 Hz–20 kHz 0.05% THD: 400 W (1 kHz)
- EIA: 1 kHz, 1% THD @:
- 4Ω: 450 W
- 2Ω: not rated
- Bridged Mono Mode:
- 16Ω, 20 Hz–20 kHz, 0.1% THD: 500 W
- 8Ω, 20 Hz–20 kHz, 0.1% THD: 800 W (0.1% THD, 1 kHz)
- 4Ω, 1 kHz, 1% THD: not rated
- Signal to Noise 20 Hz–20 kHz, unweighted: - 105 dB
- Input Sensitivity full rated power @ 8 ohms: 1.12 V rms
- Input Sensitivity full rated power @ 4 ohms: 1.0 V rms
- Output Circuitry Class Type: AB+B
- Distortion (SMPTE-IM): < 0.01%
- Distortion (Typical)
- 20 Hz–20 kHz: 10 dB below rated power: Less than 0.02% THD @ 8 and 4 ohms
- 1.0 kHz and below: full rated power: Less than 0.02% 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: 3-pin detachable terminal blocks
- Output: Safety-shrouded barrier strip, including monitor output
- DataPort: One HD15 per pair of channels
- Voltage Gain at 8 ohms: 40x (32 dB)
- Controls:
- Front: AC switch, Ch. 1, 2, 3, and 4 recessed gain knobs
- Rear: DIP switch (Clip Limiter on/off, each channel; LF Filter on/off, each channel; LF Filter Freq 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 ON: 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
- 8Ω, 20 Hz–20 kHz, 0.03% THD: Continuous Avg. output per channel 250 W
- 4Ω, 20 Hz–20 kHz 0.05% THD: 400 W (1 kHz)
- EIA: 1 kHz, 1% THD @:
- 4Ω: 450 W
- 2Ω: not rated
- Bridged Mono Mode:
- 16Ω, 20 Hz–20 kHz, 0.1% THD: 500 W
- 8Ω, 20 Hz–20 kHz, 0.1% THD: 800 W (0.1% THD, 1 kHz)
- 4Ω, 1 kHz, 1% THD: not rated
- Signal to Noise 20 Hz–20 kHz, unweighted: - 105 dB
- Input Sensitivity full rated power @ 8 ohms: 1.12 V rms
- Input Sensitivity full rated power @ 4 ohms: 1.0 V rms
- Output Circuitry Class Type: AB+B
- Distortion (SMPTE-IM): < 0.01%
- Distortion (Typical)
- 20 Hz–20 kHz: 10 dB below rated power: Less than 0.02% THD @ 8 and 4 ohms
- 1.0 kHz and below: full rated power: Less than 0.02% 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: 3-pin detachable terminal blocks
- Output: Safety-shrouded barrier strip, including monitor output
- DataPort: One HD15 per pair of channels
- Voltage Gain at 8 ohms: 40x (32 dB)
- Controls:
- Front: AC switch, Ch. 1, 2, 3, and 4 recessed gain knobs
- Rear: DIP switch (Clip Limiter on/off, each channel; LF Filter on/off, each channel; LF Filter Freq 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 ON: 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
