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QSC RMX2450 2 x 650W @ 4ohms - (20Hz-20kHz 0.1% THD) £563.99
Description
Muscular Power Plant
The power supply is the heart of an amplifier, converting raw AC power from the wall to clean DC for the audio circuitry. The RMX uses a powerful high-current toroidal transformer and ample filter capacitance to ensure generous energy reserves. This makes a critical difference in sound quality, allowing the amp to effortlessly punch out high level transients, even when driving abusive 2 ohm speaker loads.
Superior Performance
RMX amplifiers deliver true studio-quality sound. A full complementary output circuit using the highest-grade linear output devices delivers ultra-low distortion (<0.05% THD) and a ruler-flat frequency response. SMT (Surface Mount Technology) triples small-signal component density, enabling us to pack up to 2400 watts of power in a chassis only 2 rack spaces and less than 16" deep. And unlike other designs, RMX output devices are direct-mounted to the heat sink for optimum thermal coupling and cooling.
Comprehensive Features
The RMX Series is packed full of professional features that increase performance and flexibility:
The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2 ohms stereo or 4 ohms bridged applications (a RMX 1850HD exclusive!)
Independent defeatable clip limiters reduce distortion without sacrificing peak performance.
Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers.
Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections.
Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.
Proven Reliability
With over 30 years of building amplifiers for the largest touring companies and venues around the world, you can count on QSC's reputation for designing the most reliable amps available.
R.R.P. £693.25
Our Price: £563.99 Inc VAT
Technical Specifications
- SPECIFICATIONS RMX 4050HD
- STEREO MODE (Both Channels Driven) 8 ohms
- FTC 20 Hz - 20 kHz, 0.1% THD 450 W, EIA 1 kHz, 0.1% THD 500W
- 4 ohms
- FTC 20 Hz - 20 kHz, 0.1% THD 650W , EIA 1 kHz, 0.1% THD 750W
- 2 ohms
- EIA 1 kHz, 1% THD 1200W
- BRIDGE MONO MODE 8 ohms
- FTC 20 Hz - 20 kHz, 0.1% THD 1300W, EIA 1 kHz, 0.1% THD 1500W
- 4 ohms
- EIA 1 kHz, 1% THD 2400W
- Signal to Noise, 20 Hz-20 kHz 100 dB
- 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
- 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 77 lb (34.43 kg) shipping
Features
- The RMX Series is packed full of professional features that increase performance and flexibility:
- The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2 ohms stereo or 4 ohms bridged applications (a RMX 1850HD exclusive!)
- Independent defeatable clip limiters reduce distortion without sacrificing peak performance.
- Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers.
- Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections.
- Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.
- Proven Reliability
- With over 30 years of building amplifiers for the largest touring companies and venues around the world, you can count on QSC's reputation for designing the most reliable amps available.
- FEATURES
- Compact size - up to 2400 watts in 2 rack spaces
- Professional quality performance - incorporates road-proven QSC designs
- High-current toroidal transformers for greater two-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" (6.3mm) 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
- Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
- 3-year warranty plus optional 3-year extended service contract
