Specifications - QSC DCA1222 User Manual

OUTPUT POWER in watts
FTC: 20 Hz–20 kHz @ 0.03% THD,
all channels driven
8 ohms per channel
FTC: 20 Hz–20 kHz @ 0.05% THD,
all channels driven
4 ohms per channel
FTC: 20 Hz–20 kHz @ 1% THD,
all channels driven
4 ohms per channel
EIA: 1 kHz @ 1% THD, one channel driven
8 ohms per channel
4 ohms per channel
2 ohms per channel
Bridge Mono:
16 ohms, 20 Hz–20 kHz, 0.1% THD
8 ohms, 20 Hz–20 kHz, 0.1% THD
4 ohms, 1 kHz, 1% THD
(both channel pairs driven, 4Ch. models)
DYNAMIC HEADROOM
DISTORTION
SMPTE-IM
FREQUENCY RESPONSE 20 Hz–20 kHz, ±0.15 dB
(at 10 dB below rated output power)
DAMPING FACTOR
NOISE (unweighted 20 Hz to 20 kHz, below rated output)
VOLTAGE GAIN
INPUT SENSITIVITY, V RMS
full rated power @ 8 ohms
full rated power @ 4 ohms
INPUT IMPEDANCE
# OF CHANNELS
CONTROLS
INDICATORS
CONNECTORS
COOLING
AMPLIFIER PROTECTION
37

SPECIFICATIONS

DCA1824 DCA1644
145 225
240
400
450
450
300 500
500 800
900
2 dB @ 4 ohms
< 0.01% < 0.01%
-3 dB points: 5 Hz and 100 kHz
> 500 @ 8 ohms
106 dB 107 dB
40× (32 dB)
0.93v (+1.6 dBu) 1.12v (+3.2 dBu)
0.80v (+0.3 dBu) 1.00v (+2.2 dBu)
10K ohms unbalanced
20K ohms balanced
4 4
Front: AC switch, Ch. 1–4 gain knobs with 21 detents
Rear: two 10-position DIP switches
POWER: Green LED CLIP:
PARALLEL: Yellow LED -10 dB:
BRIDGED: Yellow LED -20 dB:
SIGNAL: Green LED, 1 per channel
Input: Detachable "Euro-style" terminal blocks (1 per channel)
Output: Two barrier strips
Two HD-15 female connector for QSControl or DCM Digital Cinema Monitor
Forced-air, with variable-speed fan; back-to-front air fl ow
Full short circuit, open circuit, thermal, ultrasonic, and RF protection
Stable into reactive or mismatched loads
Red LED, 1 per channel
Green LED, 1 per channel
Green LED, 1 per channel