QSC  500w into 4ohms x 2,  800watts Bridged QSC 500w into 4ohms x 2, 800watts Bridged
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  • QSC  500w into 4ohms x 2,  800watts Bridged - Image 1

QSC 500w into 4ohms x 2, 800watts Bridged

Product ID: RMX1450a
Brand: QSC

View or buy the Power Amplifiers Sound - QSC 500w into 4ohms x 2, 800watts Bridged from QSC to discover other options and shipping details.


500w into 4ohms x 2,  800watts Bridged

Now you can have it all.
Superior sound quality, industry leading features, unbeatable reliability and an unheard of price tag!
RMX are QSC’s most cost effective amplifiers ever but they are certainly no compromise, infact RMX incorporates all the facilities and rugged reliability that won QSC four ENTECH awards in a row and accolades around the world.
All models feature clip limiters, low frequency filters, front panel gain controls and comprehensive overload protection.
At QSC you’ve never had to pay more for superior quality now you can pay even less!


Professional quality performance—incorporates road-proven QSC designs
•   Compact size — up to 2500 watts in 2 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
•   Balanced 1/4” (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 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



RMX 850a

RMX 1450a

RMX 2450a

Stereo Mode (both channels driven)185 W260 W450 W
8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD200 W300 W500 W
8Ω/ EIA 1 kHz / 0.1% THD280 W400 W650 W
4Ω/ FTC 20 Hz – 20 kHz / 0.1% THD300 W500 W (0.5% THD)750 W
2Ω/ FTC 20 Hz – 20 kHz / 1% THD430 W700 W1200 W
Bridge-Mono Mode530 W800 W1300 W
8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD600 W900 W1500 W
8Ω/ EIA 1 kHz / 0.1% THD830 W1400 W2400 W
Signal to Noise (20 Hz – 20 kHz) 8Ω> -100 dB> -100 dB> -100 dB
Distortion (SMPTE-IM)< 0.01%< 0.01%< 0.02%
Input Sensitivity at 8Ω1.15V (+3.4dBu)1.15V (+3.4 dBu)1.23V (+4.0 dBu)
Voltage Gain31.6x (30 dB)40x (32 dB)50x (34 dB)
Power Requirements4.5 A6.0 A6.3 A
Typical, 1/8 power pink noise at 4Ω*6.6 A9.6 A15.6 A
Supplied Plug Type, 230VCEE7/7CEE7/7CEE7/7
Weight35 lb (15.9 kg)40 lb (18.2 kg)44.5 lb (20.2 kg)
Net41 lb (18.6 kg)46 lb (20.9 kg)50.5 lb (23 kg)

Distortion (typical)     
20 Hz – 20 kHz: 10 dB below rated power< 0.03% THD / 4Ωand 8Ω  
1.0 kHz and below: full rated power< 0.03% THD / 4Ωand 8Ω  
Frequency Response20 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 Impedance10k ohms unbalanced / 20k ohms balanced
Input Clipping10 Vrms (+22 dBu)  
CoolingContinuously 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®    
ControlsFront: AC switch / Ch. 1 & 2 gain knobs
 Rear: 10-position DIP switch    
IndicatorsPower-on: Green LED / Signal: Yellow LED (1 per channel) / Clip: Red LED (1 per channel) | Protect: Red LED
Amplifier ProtectionFull short circuit, open circuit, thermal, ultrasonic, RF protection. Stable into reactive or mismatched loads
Load ProtectionTurn-on/off muting / AC coupling (850, 1450) / Triac crowbar ( 2450) on each channel
Dimensions3.5” (8.9 cm) tall / 2 rack spaces  
Power Requirements100, 120, 230 VAC, 50 – 60 Hz (factory configured)

Download    User Manual

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