QSC RMX2450a Power Amplifier

  • $849.99


The RMXa Series amplifiers offer true professional-quality performance at an affordable price. With 800 W/CH into 4 ohms and 1200 W/CH into 2 ohms all in a chassis that is less than 16" deep the RMX2450a is perfectly suited for performing musicians and mobile entertainers.

 

  • Compact size — up to 2500 watts in two rack spaces, or 5000 watts in three rack spaces
  • 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
  • The 4000-watt RMX4050a operates on a standard 15 amp plug (120 V)
  • Both the RMX4050a and the RMX5050a feature a dual mono, high-current power supply for increased reliability and performance
  • The RMX4050a's particularly exceptional combination of cooling capacity and electrical efficiency provides robust thermal performance suitable for high continuous power in 2-ohm stereo or 4-ohm bridged applications.
  • Balanced 1/4-inch (6.3 mm) TRS, XLR, and barrier strip inputs
  • Touch-proof binding post and Neutrik Speakon® outputs
  • Front mounted gain controls for easy access
  • Signal and clip LED indicators for monitoring 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
Power per Channel, Stereo Mode (both channels driven)
8Ω, FTC 20 Hz–20 kHz, 0.1% tdD 450 W
8Ω, EIA 1 kHz, 0.1% tdD 500 W
4Ω, FTC 20 Hz–20 kHz, 0.1% tdD 650 W
4Ω, EIA 1 kHz, 0.1% tdD 800 W (0.5% tdD)
2Ω, EIA 1 kHz, 1% tdD 1200 W
Power, Bridge-Mono Mode
8Ω, FTC 20 Hz–20 kHz, 0.1% tdD 13000 W
8Ω, EIA 1 kHz, 0.1% tdD 1500 W
4Ω, EIA 1 kHz, 1% tdD 2400 W
Signal to Noise (20 Hz - 20 kHz) -100 dB
Distortion (SMPTE-IM) < 0.02%
Input Sensitivity at 8Ω 1.23V (+4.0 dBu)
Voltage Gain 50x (34 dB)
Output Circuitry 2-tier Class H
Current Draw (120 V AC)
Typical, 1/8 power pink noise at 4Ω* 6.3 A
Severe, 1/3 power pink noise at 4Ω* 15.6 A
AC Mains Plug
100/120V
230V
NEMA 5-15
CEE7/7
Distortion (typical)
20 Hz–20 kHz, 10 dB below rated power < 0.03% tdD, 4Ω and 8Ω
1 kHz and below, full rated power < 0.03% tdD, 4Ω and 8Ω
Frequency Response 20 Hz–20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed, 8Ω)
Damping Factor (1 kHz and below) > 300 at 8Ω
Input Impedance 10 kΩ unbalanced; 20 kΩ balanced
Input Stage Clipping 10 V rms (+22 dBu)
Cooling Continuously variable speed fan, back-to-front air flow
Connectors (each channel) Input: Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+)
Output: Touch-proof binding posts; Neutrik Speakon®
Controls Front: AC switch; Channel 1 & 2 gain knobs
Rear: 10-position DIP switch
LED Indicators Power on: Green; Signal: Yellow (1 per channel); Clip/Protect: Red (1 per channel)
Amplifier Protection Full short circuit, open circuit, tdermal, ultrasonic, RF protection. Stable into reactive or mismatched loads
Load Protection Turn-on/off muting; AC coupling (850, 1450); Triac crowbar (1850HD, 2450, 4050HD, 5050) on each channel
Load Protection Turn-on/off muting; AC coupling (850, 1450); Triac crowbar (1850HD, 2450, 4050HD, 5050) on each channel
Carton Dimensions (H×W×D) 24 × 22 × 6 in
Shipping Weight 50.5 lb
Power Requirements 100, 120, 230 V AC (factory configured), 50–60 Hz
  • 1x QSC RMX2450a Power Amplifier
  • Power Cable
  • User's Manual

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