QSC Audio CX108V - Manual (Page 2)

CX
8-Channel Specifications
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CX 8-channel Spec Sheet - 06/04/08
Specifications subject to change without notice.
CX168 CX108V
Stereo Mode (all channels driven) Continuous average output power per channel
8Ω / 20 Hz – 20 kHz / 0.05% THD 90 W —
4Ω / 20 Hz – 20 kHz / 0.1% THD 130 W —
Midband Ratings All channels driven Single channel
8Ω / 1 kHz / 0.1% THD 100 W 120 W —
4Ω / 1 kHz / 0.1% THD 140 W 180 W —
70V / 20 Hz – 20 kHz / 0.2% THD — 100 W
Bridge-Mono Mode Bridge-mono mode operation
16Ω / 20 Hz – 20 kHz / 0.1% THD 180 W —
8Ω / 20 Hz – 20 kHz / 0.1% THD 260 W
140V / 20 Hz – 20 kHz / 0.2% THD — 200 W
Signal to Noise (20 Hz – 20 kHz) -107 dB -100 dB
Input Sensitivity 1.35 Vrms at 8Ω 1.26 Vrms at 70V
Voltage Gain 20x (26 dB) 56x (35 dB)
Input Clipping 6 Vrms (+18 dBu) 6 Vrms (+18 dBu)
Output Circuitry Class AB+B Class AB+B
Frequency Response 20 Hz – 20 kHz, + 0.2 dB | 8 Hz – 50 kHz, +0/-3 dB 20 Hz – 20 kHz, + 0.4 dB | 8 Hz – 70 kHz, +0/-3 dB
Damping Factor > 200 (5 kHz and below) > 500 (5 kHz and below)
Input Impedance 6k ohms unbalanced, 22k ohms balanced 6k ohms unbalanced, 22k ohms balanced
Distortion (SMPTE-IM) < 0.02%
Distortion (typical)
20 Hz – 20 kHz: 10 dB below rated power < 0.1% THD
1.0 kHz and below: full rated power < 0.03% THD
Cooling Variable-speed fan / rear-to-front air flow through tunnel heat sink
Connectors Input: 3-pin Euro-style detachable terminal blocks (one per channel)
DataPort: HD-15 connector (Ch. 1+2, 3+4, 5+6, 7+8)
Output: two 8-pin Euro-style detachable terminal blocks
Controls Front: AC switch, Ch. 1, 2, 3, 4, 5, 6, 7 & 8 gain knobs
Rear: DIP switches for Ch. 1 - 8, clip limiter on/off, LF filter on/off, LF filter freq select 33 or 70 Hz for CX168
LF filter freq select 50 or 75 Hz for CX108V, inputs parallel or stereo; bridge mode
Indicators Power-On: Green LED / Parallel inputs: Orange LED (1 per channel pair) / Signal -35 dB: Green LED (1 per channel)
Bridged: Yellow LED (1 per channel pair) / Clip: Red LED (1 per channel)
Amplifier Protection Full short circuit, open circuit, thermal, ultrasonic, and RF protection. Stable into reactive or mismatched loads
Load Protection On/off muting, individual channel DC fault blocking
Dimensions (HWD) 3.5" (8.9 cm) 2 RU x 19" (48.3 cm) rack mounting x 14" (35.6 cm) from front mounting rails
Weight - Net / Shipping 21 lb (9.5 kg) / 27 lb (12.3 kg)
Power Requirements 100, 120, 230 VAC, 50 – 60 Hz (configured at factory)
120V Current Consumption* Idle 0.6 A 0.6A
1/8 power pink noise 8Ω 6.2 A −
4Ω 9.2 A −
70V − 6.3 A
1/3 power pink noise 8Ω 9.2 A −
4Ω 14.2 A −
70V − 9.4 A
* Multiply currents by 0.5 for 230V units
(typical of program material
with severe clipping)
(typical of program material at
maximum unclipped power)
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