QSC RMX 5050a - Power Amp 2 x 1800W @ 4ohms

QSC RMX 5050a - Power Amp 2 x 1800W @ 4ohms

The QSC RMX 5050a power amplifier is perfectly suited for a wide range of sound reinforcement applications including professional touring, performing musicians, and mobile entertainers. The RMX5050a is optimized to deliver high levels of sustained power, extraordinary audio performance and road-proven reliability.

Like its smaller sibling (the RMX 4050a), the RMX 5050a features a three-tier, Class H design. The RMX 5050a is extremely efficient at real world power levels. Less AC current is wasted and more goes into producing useful audio power. The RMX 5050a uses the best available component upgrades to increase peak power by 25% over the RMX 4050a.

Like all RMX amps, the RMX 5050a features balanced 1/4" TRS, XLR and barrier strip inputs, binding posts and Neutrik Speakon outputs, front-mounted gain controls, plus signal and clip LED indicators to monitor performance.

Stereo (Watts Per Channel)

• 110 watts @ 8 Ohm
• 1800 watts @ 4 Ohm
• 2500 watts @ 2 Ohm

Bridge Mono Mode

• 5000 watts @ 4 Ohm

QSC RMX 5050a Features

• 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
• Feature 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

Specifications

• Power per Channel, Stereo Mode (both channels driven)
  
  • 8Ω, FTC 20 Hz–20 kHz, 0.1% THD: 1050 W
  • 8Ω, EIA 1 kHz, 0.1% THD: 1100 W
  • 4Ω, FTC 20 Hz–20 kHz, 0.1% THD: 1600 W
  • 4Ω, EIA 1 kHz, 0.1% THD: 1800 W
  • 2Ω, FTC 20 Hz–20 kHz, 1% THD: 2000 W
  • 2Ω, EIA 1 kHz, 1% THD: 2500 W
• Power, Bridge-Mono Mode
  
  • 8Ω, FTC 20 Hz–20 kHz, 0.1% THD: 3200 W
  • 8Ω, EIA 1 kHz, 0.1% THD: 3600 W
  • 4Ω, EIA 1 kHz, 1% THD: 5000 W
• Signal to Noise (20 Hz–20 kHz): -100 dB
• Distortion (SMPTE-IM): < 0.02%
• Input Sensitivity at 8Ω: 1.42V (+5.3 dBu)
• Voltage Gain: 64x (36 dB)
• Output Circuitry: 3-tier Class H
• Current Draw (120 V AC):
  
  • Typical, 1/8 power pink noise at 4Ω*: 13.9 A
  • Severe, 1/3 power pink noise at 4Ω*: 26.9 A 
• Weight:
  
  • Net: 75 lb (33.1 kg)
  • Shipping: 87 lb (37.2 kg) 
• Distortion (typical):
  
  • 20 Hz–20 kHz, 10 dB below rated power: < 0.02% THD, 4Ω and 8Ω
  • 1 kHz and below, full rated power: < 0.02% THD, 4Ω and 8Ω
• Frequency Response: 20 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 Impedance: 10 kΩ unbalanced; 20 kΩ balanced
• Input Stage Clipping: 6.4 V rms (+18 dBu)
• Cooling: Continuously 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® 
• Controls:
  
  • Front: AC switch; Channel 1 & 2 gain knobs
  • Rear: 10-position DIP switch 
• LED Indicators: Power on: Green; Signal: Yellow (1 per channel); Clip/Protect: Red (1 per channel)
• Amplifier Protection: Full short circuit, open circuit, thermal, ultrasonic, RF protection. Stable into reactive or mismatched loads
• Load Protection: Turn-on/off muting; AC coupling (850, 1450); Triac crowbar (1850HD, 2450, 4050HD, 5050) on each channel
• Dimensions: 5.25” (13.3 cm) tall; 3 rack spaces
• Power Requirements: 100, 120, 230 V AC (factory configured), 50–60 Hz