QSC RMX850A
RMX Series 300W-Channel @ 4 Ohms Stereo Power Amplifier

OUR PART #  RMX850A


The QSC RMX850A is a 300W-Channel @ 4 Ohms stereo power amplifier.

The RMXa Series amplifiers from QSC offer true professional-quality performance at an affordable price. Three 2-rackspace models range in power from 430 to 1200 watts per channel at 2 ohms. Two 3-rackspace models provide 2000 to 2500 watts per channel at 2 ohms. All five models feature a compact chassis less than 16" deep. RMXa amplifiers include a comprehensive set of features including XLR and 1/4" balanced inputs, Speakon® and binding post outposts for convenient connectivity. User-defeatable clip limiters and selectable low-frequency filters optimize sonic performance.

QSC RMX850A Features:

  • High-current toroidal transformers for greater 2 Ohm power and low noise
  • Independent user-defeatable clip limiters reduce distortion
  • Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
  • Balanced 1/4" (6.3 mm) TRS, XLR, and barrier strip inputs
  • Touch-proof binding post and Neutrik Speakon® outputs
  • Front mounted gain controls for easy access
  • Signal and Clip LED indicators to monitor performance
  • Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers

QSC RMX850A Specifications:

  • Stereo Mode (both channels driven):
    • 8 Ohms / FTC 20 Hz – 20 kHz / 0.1% THD: 185W
    • 8 Ohms / EIA 1 kHz / 0.1% THD: 200W
    • 4 Ohms / FTC 20 Hz – 20 kHz / 0.1% THD: 280W
    • 4 Ohms / EIA 1 kHz / 0.1% THD: 300W
    • 2 Ohms / EIA 1 kHz / 1% THD: 430W
  • Bridge-Mono Mode:
    • 8 Ohms / FTC 20 Hz – 20 kHz / 0.1% THD: 530W
    • 8 Ohms / EIA 1 kHz / 0.1% THD: 600W
    • 4 Ohms / EIA 1 kHz / 1% THD: 830W

QSC RMX850A
RMX Series 300W-Channel @ 4 Ohms Stereo Power Amplifier

OUR PART #  RMX850A

Product Information:

The QSC RMX850A is a 300W-Channel @ 4 Ohms stereo power amplifier.

The RMXa Series amplifiers from QSC offer true professional-quality performance at an affordable price. Three 2-rackspace models range in power from 430 to 1200 watts per channel at 2 ohms. Two 3-rackspace models provide 2000 to 2500 watts per channel at 2 ohms. All five models feature a compact chassis less than 16" deep. RMXa amplifiers include a comprehensive set of features including XLR and 1/4" balanced inputs, Speakon® and binding post outposts for convenient connectivity. User-defeatable clip limiters and selectable low-frequency filters optimize sonic performance.

QSC RMX850A Features:

  • High-current toroidal transformers for greater 2 Ohm power and low noise
  • Independent user-defeatable clip limiters reduce distortion
  • Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
  • Balanced 1/4" (6.3 mm) TRS, XLR, and barrier strip inputs
  • Touch-proof binding post and Neutrik Speakon® outputs
  • Front mounted gain controls for easy access
  • Signal and Clip LED indicators to monitor performance
  • Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers

QSC RMX850A Specifications:

  • Stereo Mode (both channels driven):
    • 8 Ohms / FTC 20 Hz – 20 kHz / 0.1% THD: 185W
    • 8 Ohms / EIA 1 kHz / 0.1% THD: 200W
    • 4 Ohms / FTC 20 Hz – 20 kHz / 0.1% THD: 280W
    • 4 Ohms / EIA 1 kHz / 0.1% THD: 300W
    • 2 Ohms / EIA 1 kHz / 1% THD: 430W
  • Bridge-Mono Mode:
    • 8 Ohms / FTC 20 Hz – 20 kHz / 0.1% THD: 530W
    • 8 Ohms / EIA 1 kHz / 0.1% THD: 600W
    • 4 Ohms / EIA 1 kHz / 1% THD: 830W
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