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QSC Audio RMX 2450
The power supply is the heart of an amplifier, converting raw AC power from the wall to clean DC for the audio circuitry. RMX amplifiers use powerful high-current toroidal transformers 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.
The RMX 2450 is a truly remarkable amplifier delivering true studio-quality sound. A full complementary output circuit using the highest-grade linear output devices delivers ultra-low distortion ( <0.02% THD) & 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 & less than 16" deep. And unlike other designs, RMX output devices are direct-mounted to the heat sink for optimum thermal coupling & cooling.
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. Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.
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Specifications
- Output Power (Stereo, EIA, both channels driven)
- 8 ohms EIA 1 kHz: 0.1% THD 500W
- 4 ohms EIA 1 kHz: 0.1% THD 750W
- 2 ohms EIA 1 kHz: 1% THD 1200W
- Output Power (Bridged Mono)
- 8 ohms 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%
- Input Sensitivity @ 8 ohms: 1.23v (+4.0 dBu)
- Voltage Gain: 50x (34 dB)
- Output Circuitry: Class H
- Power Requirements (1/8 power pink noise at 4 ohms 1):
5 A
- Weight: 44.5 lb (20.2 kg)
- Distortion (Typ) 20 Hz-20 kHz 10 dB below rated
power: Less than 0.03% THD 4 and 8 ohms
- Distortion (Typ) <1.0 kHz full rated power: Less
than 0.03% THD 4 and 8 ohms
- Frequency Response: 20 Hz-20 kHz, +/- 1 dB, -3 dB points: 5
Hz-50 kHz
- Damping Factor (<1 kHz): Greater than 300 at 8 ohms
- Input Impedance: 10 k ohms unbalanced, 20 k ohms balanced
- Input Clipping: 10 Vrms (+22 dB)
- Cooling: Continuously variable-speed fan, rear-to-front air
flow
- Connectors, each channel: Input - Active
balanced, Barrier strip - XLR and 1/4" (6.3mm), TRS tip and
XLR pin 2 positive, Output - touch-proof binding posts and
Neutrik Speakon
- Controls: Front - AC switch, Ch. 1 and Ch. 2 gain knobs,
Rear - 10-position DIP switch
- Indicators: Signal - Yellow LED (1/ch), Clip - Red LED (1/ch)
- Amplifier Protection: Stable into reactive or mismatched
loads
- Load Protection: On/off muting, AC coupling (850, 1450),
triac crowbar
- Dimensions: 19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall
(2 rack spaces), 15.9" (40 cm) deep (rack mounting to rear support
ears)
- Power Requirements: 100, 120, 230 VAC, 50-60 Hz
Notes:
1) measured at 120VAC, both channels driven; multiply current by
.5 for 230V units
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