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RMX Series Amplifiers

The RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. The RMX Series deliver unmatched performance at a breakthrough price. With over 35 years of building amplifiers for the largest touring companies and venues around the world, you can count on QSC's reputation for designing the most reliable amps available.
  • Compact size - up to 2400 watts in 2 rack spaces or up to 5000 watts in 3 rack spaces
  • Professional quality performance - incorporates road-proven QSC designs
  • High-current toroidal transformers for greater two-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" (6.3mm) TRS, XLR and barrier strip inputs
  • 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
  • 3-year warranty plus optional 3-year extended service contract


Select one of the models below:


RMX 850 Professional Power Amplifier

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Watts per channel (both channels driven)
8 Ohms 4 Ohms 2 Ohms* 4 Ohms Bridged*
200 300 430 830
1 kHz, 0.1% THD *1 kHz, 1% THD

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RMX 1450 Professional Power Amplifier

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Watts per channel (both channels driven)
8 Ohms 4 Ohms 2 Ohms* 4 Ohms Bridged*
280 450 700 1400
1 kHz, 0.1% THD *1 kHz, 1% THD

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RMX 1850HD Professional Power Amplifier

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Watts per channel (both channels driven)
8 Ohms 4 Ohms 2 Ohms* 4 Ohms Bridged*
360 600 900 1800
1 kHz, 0.1% THD *1 kHz, 1% THD

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RMX 2450 Professional Power Amplifier

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Watts per channel (both channels driven)
8 Ohms 4 Ohms 2 Ohms* 4 Ohms Bridged*
500 750 1200 2400
1 kHz, 0.1% THD *1 kHz, 1% THD

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RMX 4050HD Professional Power Amplifier

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Watts per channel (both channels driven)
8 Ohms 4 Ohms 2 Ohms* 4 Ohms Bridged*
850 1400 2000 4000
1 kHz, 0.1% THD *1 kHz, 1% THD

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RMX 5050 Professional Power Amplifier

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Watts per channel (both channels driven)
8 Ohms 4 Ohms 2 Ohms* 4 Ohms Bridged*
1100 1850 2500 5000
1 kHz, 0.1% THD *1 kHz, 1% THD

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