QSC Audio DCA 1222 Technische Daten, Especificaciones, S P E C I F I C At I O N S, DCA1824

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	S P E C I F I C AT I O N S			S P É C I F I C AT I O N S		TECHNISCHE DATEN	ESPECIFICACIONES
	DCA1824			DCA1644
OUTPUT POWER in watts
FTC: 20 Hz–20 kHz @ 0.03% THD,
all channels driven
8 ohms per channel	170			250
FTC: 20 Hz–20 kHz @ 0.05% THD,
all channels driven
4 ohms per channel	325
FTC: 20 Hz–20 kHz @ 1% THD,
all channels driven
4 ohms per channel				400
EIA: 1 kHz @ 1% THD, one channel driven
8 ohms per channel
4 ohms per channel				450
2 ohms per channel	450
Bridge Mono:
16 ohms, 20 Hz–20 kHz, 0.1% THD	340			500
8 ohms, 20 Hz–20 kHz, 0.1% THD	650			900
4 ohms, 1 kHz, 1% THD	900
(both channel pairs driven, 4Ch. models)
DYNAMIC HEADROOM	2 dB @ 4 ohms
DISTORTION
SMPTE-IM	< 0.01%			< 0.01%
FREQUENCY RESPONSE	20 Hz–20 kHz, ±0.15 dB
(at 10 dB below rated output power)	-3 dB points: 5 Hz and		100 kHz
DAMPING FACTOR	> 500 @ 8 ohms
NOISE (unweighted 20 Hz to 20 kHz, below rated output)	106 dB			107 dB
VOLTAGE GAIN	40× (32 dB)
INPUT SENSITIVITY, V RMS
full rated power @ 8 ohms	0.93v (+1.6 dBu)			1.12v (+3.2 dBu)
full rated power @ 4 ohms	0.80v (+0.3 dBu)			1.00v (+2.2 dBu)
INPUT IMPEDANCE	10K ohms unbalanced
	20K ohms balanced
# OF CHANNELS	4			4
CONTROLS	Front: AC switch, Ch. 1–4 gain knobs with 21 detents
	Rear: two 10-position DIP switches
INDICATORS	POWER:	Green LED		CLIP:	Red LED, 1 per channel
	PARALLEL:	Yellow LED		-10 dB:	Green LED, 1 per channel
	BRIDGED:	Yellow LED		-20 dB:	Green LED, 1 per channel
	SIGNAL:	Green LED, 1 per channel
CONNECTORS	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
COOLING	Forced-air, with variable-speed fan; back-to-front air flow
AMPLIFIER PROTECTION	Full short circuit, open circuit, thermal, ultrasonic, and RF protection
	Stable into reactive or mismatched loads