QSC CX168 8-Channel 90W Rackmount Power Amplifier 8 ohms per channel


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Dale #:QSC-CX168

Availability: In Stock

Available for immediate shipment and pick-up from our Jamaica, New York location. In-store pick-up is available Monday through Friday from 8:30 am to 5:30 pm
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  • Designed for permanently installed sound systems where rackspace is at a premium, QSC's CX168 provides unprecedented levels of channel density for multi-channel amplifiers. It provides 8 channels with 130 watts per channel at 8 Ohms. Each pair of channels may be bridged to configure these amplifiers as 4, 5, 6, or 7 channel units. It features DataPorts for remote amplifier management or signal processing, incorporation of QSC's legendary PowerLight technology, and delivery of our unmatched reputation for quality and reliability.

    QSC's PowerLight technology takes your audio to an entirely new level. Delivering tighter bass and clean, transparent highs, PowerLight also cuts waste heat, boosts reliability, and eliminates unwanted noise and hum. PowerLight is a revolutionary switching power supply technology that provides ample current to the audio power circuitry by charging the supply rails 230,000 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.

    Key Features:

    • 130 watts per channel at 4 Ohms
    • 8 channels in sets of 4 pairs
    • Channel pairs bridgeable for maximum flexibility
    • 1 dB recessed detented gain controls for fast and accurate settings
    • Detachable Euro style input and output connectors
    • 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
    • 3-year warranty plus optional 3-year extended service contract
    • RoHS compliant

    Additional Features:

    • Compact size - only two rack spaces and 14" deep for reduced rack space
    • 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 QSControl computer control or QSC's signal processing accessories
    • Custom integrated gain control security cover for tamper-proof installations
    • DIP switch control for clip limiters, high-pass filters, bridge mono and parallel operation
    • High-performance Class AB+B complementary bipolar output circuitry
    • Light weight - only 21 pounds (9.5 kg) for easier racking and shipping
    • All CX Series amplifiers meet the European Union's, 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices.
     STEREO MODE, All Channels Driven
    Continuous Average Output Power Per Channel
      8 ohms 0.05% THD 20 Hz - 20 kHz90W
      4 ohms 0.1% THD 20 Hz - 20 kHz130W
    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
    Single Ch.
    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
    Noise (20 Hz - 20 kHz)-107 dB
    Input Sensitivity (for full-rated output power)1.35 Vrms @ 8 ohms
    Voltage Gain 20x (26 dB)
    Input Clipping6 Vrms (+18 dBu)
    Output CircuitryClass AB+B
    Frequency Response20 Hz - 20 kHz, ± 0.2 dB
    8 Hz - 50 kHz, +0/-3 dB
    Damping FactorGreater than 200
    (5 kHz and below)
    Input Impedance6 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
    ConnectorsInput: 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
    CoolingVariable speed fan, rear-to-front airflow through tunnel heat sink
    ControlsFront: 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)
    Amplifier ProtectionFull short circuit, open circuit, thermal, ultrasonic, and RF protection; Stable into reactive or mismatched loads
    Load ProtectionOn/off muting; Individual channel DC fault blocking
    Dimensions19” (48.3 cm) rack mounting, 3.5”(8.9 cm) tall (2 rack spaces), 14” (35.6 cm) deep (from front mounting rails)
    Weight21 lb (9.5 kg) net, 27 lb (12.3 kg) shipping
    Power Requirements100, 120, 230 VAC, 50-60 Hz (configured at factory)
    Current Consumption 120V  
    Idle current
    (Multiply currents by 0.5 for 230V units.)
      0.6 A
    1/8 Average Power*
    (typical of program material at maximum
    unclipped power) *Pink noise
    8 ohms
    4 ohms
    6.2 A
    9.2 A
    1/3 Average Power*
    (typical of program material with
    severe clipping) *Pink noise
    8 ohms
    4 ohms
    9.2 A
    14.2 A
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