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QSC RMX2450A Two-Channel Power Amplifier (RMX2450A) with Neutrik Speakon® Output

800W per channel, compact size, high-current toroidal transformers

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What's in the box:

  • QSC RMX2450a
  • Power Cord
  • Limited Three-Year Warranty Extendable by Additional 3-Year Service Contract

Video:

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Retail Price
$1,118.19
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$999.99
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Item Number 
QSC-RMX2450A
Vendor Part
RMX2450A

The 750 watts per channel at 4Ω QSC RMX2450a Low-Z Power Amplifier is a 2RU rack mountable amplifier designed for live sound reinforcement applications. The amplifier features two 2-tier Class H output channels that can operate in either stereo or mono bridge mode. The unit operates on a standard 15 amp plug and utilizes high-current toroidal transformers for less noise and better performance when pushing a 2 ohm load.

The front panel of the unit features two gain control knobs for easy access and each channel is protected by a dedicated DC and thermal overload protection circuit. For inputs, the back of the unit accepts both balanced 1/4" and XLR inputs. For outputs, the unit features both Neutrik Speakon and touch-proof binding post connections.

Features:

  • 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
  • Amplifier utilizes independent user-defeatable clip limiters and includes LED indicator lights to show the presence of the signal and when the signal is clipping
  • Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
  • 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

Be sure to check out the brochure and video for more information!

Specifications for the QSC RMX2450A Two-Channel Power Amplifier

{ "Stereo Mode (both channels driven)" : { "8Ohms / FTC 20 Hz - 20 kHz / 0.1% THD" : " 450 W ", "8Ohms / EIA 1 kHz / 0.1% THD" : " 500 W ", "4Ohms / FTC 20 Hz - 20 kHz / 0.1% THD" : " 650 W ", "4Ohms / EIA 1 kHz / 0.1% THD" : " 750 W (0.5% THD)", "2Ohms / EIA 1 kHz / 1% THD" : " 1200 W" }, "Bridge Mono Mode" : { "8Ohms / FTC 20 Hz - 20 kHz / 0.1% THD" : " 1300 W ", "8Ohms / EIA 1 kHz / 0.1% THD" : " 1500 W ", "4Ohms / EIA 1 kHz / 1% THD" : " 2400 W" }, "Signal to Noise (20 Hz - 20 kHz)" : "> -100 dB", "Distortion (SMPTE-IM)" : "< 0.02%", "Input Sensitivity at 8Ohms" : "1.23V (+4.0 dBu)", "Voltage Gain" : "50x (34 dB)", "Output Circuitry" : "2-tier Class H", "Power Requirements" : { "Typical, 1/8 power pink noise at 4Ohms" : " 6.3 A ", "Severe, 1/3 power pink noise at 4Ohms" : " 15.6 A ", "100, 120, 230 VAC, 50 - 60 Hz (factory configured)" : "" }, "Supplied Plug Type, 100/120V" : "NEMA 5-15", "Supplied Plug Type, 230V" : "CEE7/7", "Distortion (typical)" : { "20 Hz - 20 kHz: 10 dB below rated power" : " < 0.03% THD / 4Ohms and 8Ohms ", "1.0 kHz and below: full rated power" : " < 0.03% THD / 4Ohms and 8Ohms" }, "Frequency Response" : "20 Hz - 20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed / 8Ohms)", "Damping Factor (1 kHz and below)" : "> 300 at 8Ohms", "Input Impedance" : "10k Ohms unbalanced / 20k Ohms balanced", "Input Clipping" : "10 Vrms (+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 / Ch. 1 & 2 gain knobs ", "Rear" : " 10-position DIP switch" }, "Indicators" : { "Power-on" : " Green LED ", "Signal" : " Yellow LED (1 per channel) ", "Clip" : " Red LED (1 per channel) ", "Protect" : " Red LED" }, "Amplifier Protection" : "Full short circuit, open circuit, thermal, 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", "Dimensions" : "3.5" / 88.90mm tall / 2 rack spaces", "Weight" : "44.5lbs / 20.19kg" }

Understanding Sound Reinforcement - Power Amplifiers (Part 2)

Understanding Sound Reinforcement - Power Amplifiers (Part 1)

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