QSC CX502 2 channels, 300 watts/ch at 8ohms, 500 watts/ch at 4ohms, 800 watts/ch at 2ohms.

Brand New
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As low as $79/month with
10 in stock
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Shipped From
EMI Audio
Robbinsdale, MN, United States
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About This Listing


The CX Series is designed to meet the specialized needs of sound contractors. Eight 2-channel models have been designed from the ground up, combining the exclusive QSC PowerLight™ technology with specific features to meet the requirements of fixed installations. With high-output power, versatile loading options, high thermal capacity and unmatched reliability, the CX Series is the perfect solution to any permanently installed sound system.


  • Exclusive PowerLight switch-mode power supply technology for high performance and compact size
  • Custom integrated security cover for tamper proof installations
  • Variable speed fan for low noise
  • 1-dB detented gain controls for fast and accurate gain settings
  • Active inrush limiting eliminates AC inrush current, removing the need for expensive power sequencers
  • XLR and detachable Euro style input connectors
  • HD15 DataPort connector for Q-SYS networked control and monitoring
  • 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 75 Hz)
  • Comprehensive front panel indicators including signal, clip, protect and QSC's exclusive bridge mono and parallel input LEDs
  • Barrier strip output connector
  • Comprehensive protection circuitry including DC, infrasonic, thermal overload and short circuit protection
  • Optional external transformer accessory pack for isolated 25-, 70-, and 100-volt outputs
  • Compact size - only 2 rack units high and 14" deep for reduced rack cost and floor space
  • Lightweight - weighs 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   POWER PER CHANNEL, STEREO MODE, Both Channels Driven 8Ω, 20 Hz–20 kHz, 0.05% THD 300 W 4Ω, 20 Hz–20 kHz, 0.05% THD 500 W 2Ω, 1 kHz, 1% THD 800 W 70V, 20 Hz–20 kHz, 0.05% THD - 70 V, 1 kHz, 0.05% THD - 70 V, 1 kHz, 1% THD -   POWER, BRIDGED MONO MODE 16Ω, 20 Hz–20 kHz, 0.1% THD 600 W 8Ω, 20 Hz–20 kHz, 0.1% THD 1100 W 4Ω, 1 kHz, 1% THD 1600 W 140 V, 20 Hz–20 kHz, 0.05% THD - 140 V, 1 kHz, 0.05% THD - 140 V, 1 kHz, 1% THD - Noise, 20 Hz–20 kHz -107 dB Input Sensitivity @ 8 ohms 1.23 Vrms Maximum Voltage Gain 32 dB Output Circuitry Class AB+B   ALL MODELS 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 0.01% THD
Less than 0.01% THD Frequency Response 20 Hz–20 kHz, ±0.2 dB Damping Factor   Greater than 500   Input Impedance   6 kΩ unbalanced, 12 kΩ balanced   Input Clipping   10 V rms (+22 dBu)   Cooling   Variable-speed fan, rear-to-front air flow   Connectors, each channel

  Input: 3-pin XLR & 3-pin detachable terminal blocks (1 each per channel)
Output: Safety-shrouded barrier strip   Amplifier Protection   Full short circuit, open circuit, thermal, ultrasonic, and RF protection.
Stable into reactive or mismatched loads.   Load Protection   On/off muting, DC-fault power supply shutdown   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

Product Specs

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
Number of Channels
  • 2

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