QSC

QSC 300w into 4ohms x 2, 530watts Bridged

Product ID: RMX850a

Brand: QSC

2025-01-21

View or buy the Power Amplifiers Sound - QSC 300w into 4ohms x 2, 530watts Bridged from QSC to discover other options and shipping details.

Description

QSC
300w into 4ohms x 2, 530watts 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!

FEATURES

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

SPECIFICATIONS

	RMX 850a	RMX 1450a	RMX 2450a
Stereo Mode (both channels driven)	185 W	260 W	450 W
8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD	200 W	300 W	500 W
8Ω/ EIA 1 kHz / 0.1% THD	280 W	400 W	650 W
4Ω/ FTC 20 Hz – 20 kHz / 0.1% THD	300 W	500 W (0.5% THD)	750 W
2Ω/ FTC 20 Hz – 20 kHz / 1% THD	430 W	700 W	1200 W
Bridge-Mono Mode	530 W	800 W	1300 W
8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD	600 W	900 W	1500 W
8Ω/ EIA 1 kHz / 0.1% THD	830 W	1400 W	2400 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 8Ω	1.15V (+3.4dBu)	1.15V (+3.4 dBu)	1.23V (+4.0 dBu)
Voltage Gain	31.6x (30 dB)	40x (32 dB)	50x (34 dB)
Power Requirements	4.5 A	6.0 A	6.3 A
Typical, 1/8 power pink noise at 4Ω*	6.6 A	9.6 A	15.6 A
Supplied Plug Type, 230V	CEE7/7	CEE7/7	CEE7/7
Weight	35 lb (15.9 kg)	40 lb (18.2 kg)	44.5 lb (20.2 kg)
Net	41 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 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	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 ( 2450) on each channel
Dimensions	3.5” (8.9 cm) tall / 2 rack spaces
Power Requirements	100, 120, 230 VAC, 50 – 60 Hz (factory configured)