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QSC CX168

Product Description


CX168 8-Channel Low-Z Power Amplifier

CX168

8-Channel Low-Z Power Amplifier

Features

90 watts per channel at 8 ohms and 130 watts per channel at 4 ohms
Compact size—only two rack spaces and 14" deep for reduced rack space
Channel pairs bridgeable for maximum flexibility
Exclusive PowerLight switch-mode power supply technology for high performance and compact size
Active inrush limiting eliminates AC inrush current, removing the need for expensive power sequencers
Four HD15 DataPorts (one per channel pair) for Q-SYS networked control and monitoring
Custom integrated gain control security cover for tamper-proof installations
1-dB recessed detented gain controls for fast and accurate settings
Detachable Euro-style input and output connectors
DIP switch control for clip limiters, high-pass filters, bridge mono and parallel operation
Selectable high-pass filters protect speakers and prevent speaker transformer saturation with minimal effect on program material (33 Hz or 70 Hz)
Comprehensive front panel indicators including signal, clip, bridge mono and parallel input LEDs
Fully protected—including DC, infrasonic and ultrasonic, thermal overload and short circuit protection
High-performance Class AB+B complementary bipolar output circuitry
Lightweight—only 21 pounds (9.5 kg) for easier racking and shipping
3-year warranty plus optional 3-year extended service contract
All CX Series amplifiers meet the European Union's, 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices.

SPECIFICATIONS	CX168		CX108V
	STEREO MODE, All Channels Driven Continuous Average Output Power Per Channel
8?, 0.05% THD 20 Hz–20 kHz	90 W		-
4?, 0.1% THD 20 Hz–20 kHz	130 W		-
70 V, 0.2% THD 20 Hz–20 kHz	-	-	100 W
Midband Ratings 8?, 0.1% THD 1 kHz 4?, 0.1% THD 1 kHz	All channels 100 W 140 W	Single channel 120 W 180 W	- -
	BRIDGE MONO MODE
16?, 0.1% THD 20 Hz–20 kHz 8?, 0.1% THD 20 Hz–20 kHz 140 V, 0.2% THD 20 Hz-20 kHz	180 W 260 W -		- - 200 W
Noise (20 Hz–20 kHz)	-107 dB		-100 dB
Input Sensitivity (for full-rated output power)	1.35 V rms @ 8 ohms		1.26 V rms @ 70V
Voltage Gain	20× (26 dB)		56× (35 dB)
Input Clipping	6 V rms (+18 dBu)		6 V rms (+18 dBu)
Output Circuitry Class	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	Greater than 200 (5 kHz and below)		Greater than 500 (5 kHz and below)
Input Impedance	6 k? unbalanced, 12 k? balanced		6 k? unbalanced, 12 k? balanced
Distortion (SMPTE-IM)	Less than 0.02%
Distortion (typical) 20 Hz–20 kHz: 10 dB below rated power 1.0 kHz and below: at full rated power	Less than 0.1% THD Less than 0.03% THD
Connectors	Input: 3-pin Euro-style detachable terminal blocks, (one per ch.) DataPort: HD-15 Connector, (one per channel pair: Ch 1+2, 3+4, 5+6, 7+8) Output: Two 8-pin Euro-style detachable terminal blocks
Cooling	Variable speed fan, rear-to-front airflow through tunnel heat sink
Controls	Front: AC switch, Ch 1, 2, 3, 4, 5, 6, 7 & 8 gain knobs Rear: DIP switches for Ch. 1–Ch. 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	PWR-ON: Green LED SIGNAL-35 dB: Green LED (1 per channel) CLIP: Red LED (1 per channel)		PARALLEL INPUTS: Orange LED (1 per ch. pair) BRIDGED: Yellow LED (1 per ch. pair)
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) inches	3.5 x 19 x 14 / 2RU
Dimensions (HWD) mm	89 x 483 x 356 / 2RU
Weight	21 lb (9.5 kg) net, 27 lb (12.3 kg) shipping
Power Requirements	100, 120, 230 VAC, 50–60 Hz (configured at factory)