CX108V

8-Channel 70V Power Amplifier


Features

  • 100 watts per channel at 70 volts
  • 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 DataPort connectors (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 (50 Hz or 75 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
8Ω, 0.05% THD 20 Hz–20 kHz 90 W -
4Ω, 0.1% THD 20 Hz–20 kHz 130 W -
70 V, 0.2% THD 20 Hz–20 kHz - - 100 W
Midband Ratings
8Ω, 0.1% THD 1 kHz
4Ω, 0.1% THD 1 kHz
All channels
100 W
140 W
Single channel
120 W
180 W

-
-
  BRIDGE MONO MODE
16Ω, 0.1% THD 20 Hz–20 kHz
8Ω, 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 kΩ unbalanced,
12 kΩ balanced
6 kΩ unbalanced,
12 kΩ 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)