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QSC RMX 5050A Power Amplifier

QSC RMX 5050A Power Amplifier

SKU #: RMX5050A
$2,299.99

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Expected June 30, 2025

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Professional quality performance - incorporates road-proven QSC designs

  • Compact size - 5000 watts in three rack spaces.
  • 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.
  • The RMX5050a features a dual mono, high-current power supply for increased reliability and performance.
  • 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 for monitoring 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.

QSC RMX 5050A Specifications
 RMX 5050a
Stereo Mode (both channels driven)1050 W
8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD1100 W
8Ω/ EIA 1 kHz / 0.1% THD1600 W
4Ω/ FTC 20 Hz – 20 kHz / 0.1% THD1800 W
4Ω/ EIA 1 kHz / 0.1% THD2000 W
2Ω/ FTC 20 Hz – 20 kHz / 1% THD2500 W
2Ω/ EIA 1 kHz / 1% THD 
Bridge-Mono Mode3200 W
8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD3600 W
8Ω/ EIA 1 kHz / 0.1% THD5000 W
4Ω/ EIA 1 kHz / 1% THD 
Signal to Noise (20 Hz – 20 kHz) 8Ω> -100 dB
Distortion (SMPTE-IM)< 0.02%
Input Sensitivity at 8Ω1.42V (+5.3 dBu)
Voltage Gain64x (36 dB)
Output Circuitry3-tier Class H
Power Requirements13.9 A
Typical, 1/8 power pink noise at 4Ω*26.9 A
Severe, 1/3 power pink noise at 4Ω* 
Supplied Plug Type, 100/120VNEMA 5-20
Supplied Plug Type, 230VCEE7/7
Weight75 lb (33.1 kg)
Net87 lb (37.2 kg)
Shipping 
Distortion (typical) 
20 Hz – 20 kHz: 10 dB below rated power< 0.02% THD / 4Ωand 8Ω
1.0 kHz and below: full rated power< 0.02% THD / 4Ωand 8Ω
Frequency Response20 Hz – 20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed / 8Ω)
Damping Factor (1 kHz and below)> 250 at 8Ω
Input Impedance10k ohms unbalanced / 20k ohms balanced
Input Clipping6.4 Vrms (+18 dBu)
CoolingContinuously variable speed fan, back-to-front air flow
Connectors (each channel)Input: Active balanced / 3-pin Euro-style detachable terminal block and XLR (pin 2+)
 Output: Touch-proof binding posts / Neutrik Speakon®
ControlsFront: AC switch / Ch. 1 & 2 gain knobs
 Rear: 10-position DIP switch
IndicatorsPower-on: Green LED / Signal: Yellow LED (1 per channel) / Clip: Red LED (1 per channel) | Protect: Red LED
Amplifier ProtectionFull short circuit, open circuit, thermal, ultrasonic, RF protection. Stable into reactive or mismatched loads
Load ProtectionTurn-on/off muting / AC coupling (850, 1450) / Triac crowbar (1850HD, 2450, 4050HD, 5050) on each channel
Dimensions5.25" (13.3 cm) tall / 3 rack spaces
Power Requirements100, 120, 230 VAC, 50 – 60 Hz (factory configured)

The QSC RMX 5050A Box Includes:
(1) QSC RMX 5050A Power Amplifier
(1) Quick Start Guide
(4) Adhesive Rubber Feet -For Non-Rack Mount Applications
(1) Rear Rack Ear Mounting Kit
(1) IEC-Type Detachable Power Cord

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