QSC RMX1450a Low-Z Power Amplifier (500 W per Channel)

Model #RMX1450A

Qsc rmx1450a 1
Qsc rmx1450a 1
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Packaging Info

Package Weight 42.2 lb
Box Dimensions (LxWxH) 24.0 x 21.5 x 6.0"

General Information

Distortion SMPTE-IM: For 8 and 4 Ω load THD for 20 to 20,000 Hz at 10 dB below rated power: less than 0.03% THD for 1,000 Hz at full rated power: less than 0.03%
Input Sensitivity 1.15 V (+3.4 dBU) at 8 Ω
Voltage Gain 40x (32 dB)
Circuit Type Class AB
Power Consumption 6.0 A 1/8 power pink noise at 4Ω 9.6 A
Damping Factor > 300 at 8Ω
Input Impedance 10 kΩ balanced 20 kΩ unbalanced
Frequency Response 20 to 20,000 Hz +0/-1 dB -3 dB points 5 Hz to 50,000 Hz (LF filter bypassed/8 Ω)
Input Connections Active balanced 3-pin Euro-style detachable terminal block 2 x 3-pin XLR 2 x 1/4" TRS
Cooling Continuously variable speed fan, back-to-front airflow
Power Rating Stereo mode (both channels driven) 8 Ω FTC 20 to 20,000 Hz at 0.1% THD: 260 W 8 Ω EIA 1,000 Hz at 0.1% THD: 300 W 4 Ω FTC 20 to 20,000 Hz at 0.1% THD: 400 W 4 Ω EIA 1,000 Hz at 0.1% THD: 500 W (0.5% THD) 2 Ω EIA 1,000 Hz at 0.1% THD: 700 W Bridge-mono mode 8 Ω FTC 20 to 20,000 Hz at 0.1% THD: 800 WBridge-mono mode 8 Ω EIA 1,000 Hz at 0.1% THD: 900 W Bridge-mono mode 4 Ω EIA 1,000 Hz at 0.1% THD: 1400 W
Controls Front Panel AC switch Channel 1 gain knob Channel 2 gain knob
Controls Rear Panel 10-position DIP switch
Indicators Power-on: green LED Signal: yellow LED (1 per channel) Clip: red LED (1 per channel) Protect: red LED (1 per channel)
Power Requirements 100, 120, 230 VAC at 50 to 60 Hz (factory configured)
Protection Amplifier: Full short circuit, open circuit, thermal, ultrasonic, RF protection. Stable into reactive or mismatched loads Load: Turn-on/off muting/AC coupling (850, 1450)/ Triac Crowbar (1050HD, 2450, 4050HD, 5050) on each channel
Rack Spaces 2
Plug Type 100/120V: NEMA 5-15 230V: CEE7/7
Dimensions (H x W x D) 3.5 x 19.0 x 15.9" (89.0 x 482 x 404 mm)
Weight 40.0 lb (18.2 kg)
Output Connectors Touch-proof binding posts 2 x Neutrik Speakon
Signal-to-Noise Ratio > -100 dB
Product Highlights
  • 500 Watts per Channel 4Ω
  • 1400 Watt Bridgeable Mono Mode 4Ω
  • LED Indicators for Power, Signal, Clip
  • Built-In Protection Circuits
  • User-Defeatable Clip Limiters
  • Balanced 1/4" TRS, XLR, and Strip Inputs
  • Neutrik Speakon Output Connectors
  • High-Current Toroidal Transformers
In The Box
  • QSC RMX1450a Low-Z Power Amplifier (500 W per Channel)
  • Power Cord
  • Limited 3-Year Warranty Extendable by Additional 3-Year Service Contract
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