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QSC RMX 4050HD

4000W, 2 Channel Power Amplifier

QSC
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2 Channel Power Amplifier • 4000 Watts • Dual Mono, High Current Power Supply • 3RU Chassis • High-Current Toroidal Transformers • User-Defeatable Clip Limiters • LED Indicators

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Description


Reinforce Your Sound

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.

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 Speakon® outputs, front-mounted gain controls, plus signal and clip LED indicators to monitor performance.

General Features:
  • The RMX 4050HD provides improved thermal performance that gives you higher continuous power in 2 ohm stereo or 4 ohm 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 Manufacturer's warranty
 
SPECIFICATIONS RMX 4050HD RMX 4050HD / CE Compliant
STEREO MODE (Both Channels Driven)
8 ohm
  FTC 20 Hz - 20 kHz, 0.1% THD
  EIA 1 kHz, 0.1% THD

800 W
850 w

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

1300 W
1400 w

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

1600 W
2000 w

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

2600 W
2800 w

2600 W
2800 w
4 ohm
   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 ohm, less than 0.01% @ 8 ohm
Less than 0.02% @ 4 ohm, less than 0.01% @ 8 ohm
Frequency Response

20 Hz to 20 kHz, 8 ohm, LF filter bypassed, +0/-1 dB
5 Hz to 50 kHz, 8 ohm, LF filter bypassed, +0/-3 dB
Damping Factor Greater than 250 @ 8 ohm
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 ohm 1.12 Vrms for 650 W into 8 ohm
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 Speakon® 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

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Specifications & Details


Power Specifications
Number of Channels
2 Channels
Continuous Power @ 8 ohm
650 watts x 2 channel
Continuous Power @ 4 ohm
3100 watts x 2 channel
Continuous Power @ 2 ohm
2000 watts x 2 channel
Continuous Power @ 8 ohm (Bridged)
2800 watts x 1 channel
Continuous Power @ 4 ohm (Bridged)
4000 watts x 1 channel
Total Continuous Power
4000 watts
Amplifier Specifications
Amplifier Class
H
Signal-to-Noise Ratio
100 dB
Frequency Response
20 - 20000 Hz
THD (Total Harmonic Distortion)
0.01%
Voltage Gain
36 dB
Cooling Options
Cooling Fan
Inputs
1/4" TRS
Binding Posts
XLR
Outputs
Binding Posts (Banana Clip Ready)
SpeakOn
Physical Specifications
Height
3-1/2"
Width
19"
Depth
16"
Weight (Pounds)
68 lbs
Rackmount Spaces
2U
Warranty and Return Policy
Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

QSC

Model Number:

RMX 4050HD

Weight:

30.00lbs

Internal SKU:

rmx4050hd

Internal Product ID:

32625

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