Description

Designed for permanently installed sound systems where rackspace is at a premium, QSC’s CX108V and CX168 provide unprecedented levels of channel density for multi-channel amplifiers. The CX108V and CX168 provide 100 watts/ch. @ 70 volts and 90 watts/ch. @ 8 ohms respectively. With both models, each pair of channels may be bridged to configure these amplifiers as 4-, 5-, 6-, or 7-channel units. Like the entire CX Series, the 8-channel models feature DataPorts for remote amplifier management or signal processing, incorporate QSC’s legendary PowerWave technology, and deliver our unmatched reputation for quality and reliability.

QSC’s PowerWave technology takes your audio to an entirely new level. Delivering tighter bass and clean, transparent highs, PowerWave also cuts waste heat, boosts reliability, and eliminates unwanted noise and hum. PowerWave is a revolutionary switching power supply technology that provides ample current to the audio power circuitry by charging the supply rails over 200,000 times per second through an ultra-low noise impedance circuit. Unlike amplifiers that use conventional supplies, the audio signal is never starved prematurely and remains crisp and clean.

Features:

* 100 watts per channel at 70 volts (CX108V)
* 90 watts per channel at 8 ohms and 130 watts per channel at 4 ohms (CX168)
* Compact size — only two rack spaces and 14" deep for reduced rack space
* Channel pairs bridgeable for maximum flexibility
* Exclusive PowerWave 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 QSControl computer control or QSC’s signal processing accessories
* 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; CX108V) (33 Hz or 70 Hz; CX168)
* 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
* Light weight — only 21 pounds (9.5 kg) for easier racking and shipping
* 3-year warranty plus optional 3-year extended service contract

Note :

SPECIFICATIONS

CX168

CX108V
Stereo Mode (all channels driven)
Continuous Average Output Power Per Channel
8 ohms 0.05% THD 20 Hz–20 kHz
90 Watts

–
4 ohms 0.1% THD 20 Hz–20 kHz
130 Watts

–
Midband Ratings
8 ohms 0.1% THD 1 kHz
4 ohms 0.1% THD 1 kHz
70V 0.2% THD 20 Hz-20 kHz
All Channels
100 Watts
140 Watts
–

Single Ch.
120 Watts
180 Watts
–

–
–
100Watts
Bridge Mono Mode
16 ohms 0.1% THD 20 Hz–20 kHz
8 ohms 0.1% THD 20 Hz–20 kHz
140V 0.2% THD 20 Hz-20 kHz

180 Watts
260 Watts
–

–
–
200 Watts
Noise (20 Hz–20 kHz)
-107 dB

-100 dB
Input Sensitivity (for full-rated output power)
1.35 Vrms @ 8 ohms

1.26 Vrms @ 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
Greater than 200
(5 kHz and below)

Greater than 500
(5 kHz and below)
Input Impedance
6 kilohms unbalanced,
12 k ohm balanced

6 kilohms unbalanced,
12 k ohm balanced
Distortion (SMPTE-IM) Less than 0.02%
Distortion (typical)
20 Hz–20 kHz: 10 dB below rated power
1.0 kHz and below: 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, (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-35db: 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 19” (48.3 cm) rack mounting, 3.5”(8.9 cm) tall (2 rack spaces), 14” (35.6 cm) deep (from front mounting rails)
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)
120V Current consumption

CX 168

CX 108V
Multiply currents by 0.5 for 230V units.
Idle

0.6 A

0.6 A
1/8 Average Power*
(typical of program material at maximum
unclipped power) *Pink noise
8 ohms
4 ohms
70V

6.2 A
9.2 A
–

–
–
6.3 A
1/3 Average Power*
(typical of program material with
severe clipping) *Pink noise
8 ohms
4 ohms
70V

9.2 A
14.2 A

–
–
9.4 A
All Specification Subject to Change Without Notice.

Related Product

Description

Designed for permanently installed sound systems where rackspace is at a premium, QSC’s CX108V and CX168 provide unprecedented levels of channel density for multi-channel amplifiers. The CX108V and CX168 provide 100 watts/ch. @ 70 volts and 90 watts/ch. @ 8 ohms respectively. With both models, each pair of channels may be bridged to configure these amplifiers as 4-, 5-, 6-, or 7-channel units. Like the entire CX Series, the 8-channel models feature DataPorts for remote amplifier management or signal processing, incorporate QSC’s legendary PowerWave technology, and deliver our unmatched reputation for quality and reliability.

QSC’s PowerWave technology takes your audio to an entirely new level. Delivering tighter bass and clean, transparent highs, PowerWave also cuts waste heat, boosts reliability, and eliminates unwanted noise and hum. PowerWave is a revolutionary switching power supply technology that provides ample current to the audio power circuitry by charging the supply rails over 200,000 times per second through an ultra-low noise impedance circuit. Unlike amplifiers that use conventional supplies, the audio signal is never starved prematurely and remains crisp and clean.

Features:

* 100 watts per channel at 70 volts (CX108V)
* 90 watts per channel at 8 ohms and 130 watts per channel at 4 ohms (CX168)
* Compact size — only two rack spaces and 14" deep for reduced rack space
* Channel pairs bridgeable for maximum flexibility
* Exclusive PowerWave 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 QSControl computer control or QSC’s signal processing accessories
* 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; CX108V) (33 Hz or 70 Hz; CX168)
* 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
* Light weight — only 21 pounds (9.5 kg) for easier racking and shipping
* 3-year warranty plus optional 3-year extended service contract

Note :

SPECIFICATIONS

CX168

CX108V
Stereo Mode (all channels driven)
Continuous Average Output Power Per Channel
8 ohms 0.05% THD 20 Hz–20 kHz
90 Watts

–
4 ohms 0.1% THD 20 Hz–20 kHz
130 Watts

–
Midband Ratings
8 ohms 0.1% THD 1 kHz
4 ohms 0.1% THD 1 kHz
70V 0.2% THD 20 Hz-20 kHz
All Channels
100 Watts
140 Watts
–

Single Ch.
120 Watts
180 Watts
–

–
–
100Watts
Bridge Mono Mode
16 ohms 0.1% THD 20 Hz–20 kHz
8 ohms 0.1% THD 20 Hz–20 kHz
140V 0.2% THD 20 Hz-20 kHz

180 Watts
260 Watts
–

–
–
200 Watts
Noise (20 Hz–20 kHz)
-107 dB

-100 dB
Input Sensitivity (for full-rated output power)
1.35 Vrms @ 8 ohms

1.26 Vrms @ 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
Greater than 200
(5 kHz and below)

Greater than 500
(5 kHz and below)
Input Impedance
6 kilohms unbalanced,
12 k ohm balanced

6 kilohms unbalanced,
12 k ohm balanced
Distortion (SMPTE-IM) Less than 0.02%
Distortion (typical)
20 Hz–20 kHz: 10 dB below rated power
1.0 kHz and below: 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, (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-35db: 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 19” (48.3 cm) rack mounting, 3.5”(8.9 cm) tall (2 rack spaces), 14” (35.6 cm) deep (from front mounting rails)
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)
120V Current consumption

CX 168

CX 108V
Multiply currents by 0.5 for 230V units.
Idle

0.6 A

0.6 A
1/8 Average Power*
(typical of program material at maximum
unclipped power) *Pink noise
8 ohms
4 ohms
70V

6.2 A
9.2 A
–

–
–
6.3 A
1/3 Average Power*
(typical of program material with
severe clipping) *Pink noise
8 ohms
4 ohms
70V

9.2 A
14.2 A

–
–
9.4 A
All Specification Subject to Change Without Notice.