QSC RMX 4050 HD
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QSC RMX 4050 HD Product Details
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.
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
Specifications:
- FTC 20 Hz - 20 kHz, 0.1% THD (Stereo Mode - 8 ohms): 800 W
- EIA 1 kHz, 0.1% THD (Stereo Mode - 8 ohms): 850 W
- FTC 20 Hz - 20 kHz, 0.1% THD (Stereo Mode - 4 ohms): 1300 W
- EIA 1 kHz, 0.1% THD (Stereo Mode - 4 ohms): 1400 W
- FTC 20 Hz-20 kHz 0.1% THD (Stereo Mode - 2 ohms): 1600 W
- EIA 1 kHz 1% THD (Stereo Mode - 2 ohms): 2000 W
- FTC 20 Hz-20 kHz 0.1% THD (Bridge Mono Mode - 8 ohms): 2600 W
- EIA 1 kHz 0.1% THD (Bridge Mono Mode - 8 ohms): 2800 W
- EIA 1 kHz 1% THD (Bridge Mono Mode - 4 ohms): 4000 W
- Distortion (SMPTE-IM): Less than 0.02%
- Distortion (Typical) (20 Hz-20 kHz: 10 dB below rated power): Less than 0.02%, 4 ohms, less than 0.01%, 8 ohms
- Distortion (Typical) (1 kHz and below: full rated power): 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
- Voltage Gain: 64x (36 dB) for 8 ohm load
- Controls Front: AC power switch, Ch. 1 and Ch. 2 gain control
- Controls Rear: 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: XLR female, TRS (1/4-inch), and barrier-strip screw terminals, each channel
- Connectors Output: 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)
- 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