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QSC RMX-4050 HD

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Product Description

QSC RMX4050-HD

QSC's RMX 4050HD power amplifier represents the state-of-the-art in professional quality performance at an affordable price. Perfectly suited for a wide range of sound reinforcement applications including professional touring, performing musicians, and mobile DJs, the RMX 4050HD is optimized to deliver high levels of sustained power, extraordinary audio performance, and road-proven reliability.

SPECIFICATIONS RMX 4050HD RMX 4050HD / CE Compliant
  STEREO MODE (Both Channels Driven)
8 ohms 
  FTC 20 Hz - 20 kHz, 0.1% THD
  EIA 1 kHz, 0.1% THD

800 W
850 w

650 W
 
4 ohms
  FTC 20 Hz - 20 kHz, 0.1% THD
  EIA 1 kHz, 0.1% THD

1300 W
1400 w

1300 W
2 ohms 
  FTC 20 Hz-20 kHz 0.1% THD
  EIA 1 kHz 1% THD

1600 W
2000 w

1600 W
2000W
  BRIDGE MONO MODE
8 ohms 
  FTC 20 Hz-20 kHz 0.1% THD
  EIA 1 kHz 0.1% THD

2600 W
2800 w

2600 W
2800 w
4 ohms 
   EIA 1 kHz 1% THD

4000 W

4000W
Distortion (SMPTE-IM) Less than 0.02%
Distortion (Typical)
20 Hz-20 kHz: 10 dB below rated power
1 kHz and below: full rated power

Less than 0.02% @ 4 ohms, less than 0.01% @ 8 ohms
Less than 0.02% @ 4 ohms, less than 0.01% @ 8 ohms
Frequency Response

 
20 Hz to 20 kHz, 8 ohms, LF filter bypassed, +0/-1 dB
5 Hz to 50 kHz, 8 ohms, LF filter bypassed, +0/-3 dB
Damping Factor Greater than 250 @ 8 ohms
Noise (unweighted) 100 dB below rated output (20 Hz - 20 kHz, 8 ohm load)
Input Impedance 20k ohm balanced, 10k ohm unbalanced
Input Sensitivity 1.25 Vrms for 800 W into 8 ohms 1.12 Vrms for 650 W into 8 ohms
Voltage Gain 64x (36 dB) for 8 ohm load
Controls Front:
Controls Rear:
 
AC power switch, Ch. 1 and Ch. 2 gain control
10-pole DIP switch featuring LF filter on/off, LF filter 30/50 Hz, Clip Limiter on/off controls for each channel and switches for selecting Stereo, Parallel, or Bridge mode. Push-button circuit breaker for each channel.
Indicators

 
Power-On: Green LED, Protect: Red LED
Signal -30dB: Yellow LED, Clip: Red LED
Connectors Input:
Connectors Output:
XLR female, TRS (1/4-inch), and barrier-strip screw terminals, each channel
Binding posts and SpeakonĀ® outputs (Ch. 1 Speakon wired for biamp)
Cooling Continuously variable-speed fan, rear-to-front air flow
Amplifier Protection

 
Short circuit, open circuit, thermal, ultrasonic, and RF protection. Stable into reactive or mismatched loads
Load Protection On/off muting, DC fault output crowbar
Power Requirements 100, 120 or 240 Volts AC (+/-10%) 50-60 Hz (factory configured) 240 Volts AC (+/-10%) 50-60 Hz
Dimensions 19" 19.0" (48.3 cm) wide, 5.25" (13.3 cm) tall, 15.9" (40.39 cm) overall depth
Weight 68 lb (30.84 kg) net, 77 lb (34.43 kg) shipping



Like its smaller sibling (the RMX 1850HD), the RMX 4050HD is one of two RMX "Heavy Duty" models designed to work as hard into 2 ohm loads as most competing amplifiers will at 4 ohms. With a three-tier, Class H design, the RMX 4050HD is extremely efficient at real world power levels. Less AC current is wasted and more goes into producing useful audio power. The 120 volt versions of the RMX 4050HD accomplish all this with a standard 15 amp plug.

Like all RMX amps, the RMX 4050HD features balanced 1/4" TRS, XLR and barrier strip inputs, binding posts and Neutrik SpeakonĀ® outputs, front-mounted gain controls, plus signal and clip LED indicators to monitor performance.

FEATURES

The RMX 4050HD provides improved thermal performance that gives you higher continuous power in 2 ohms stereo or 4 ohms bridged applications
Dual mono, high current power supply for increased reliability and performance
3RU chassis only 16" deep
Professional quality performance - incorporates road-proven QSC designs
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
Binding post and Neutrik Speakon outputs
Front mounted gain controls for easy access
Signal and Clip LED indicators to monitor performance
3 year warranty. An optional 3 year extended service contract is available. Ask your dealer for details.

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