QSC RMX850a 2 channels, 200w /ch @ 8-Ohm, 300w /ch @ 4-Ohm, 430w/ch @ 2-Ohm Power Amplifier

The RMXa Series amplifiers offer true professional-quality performance at an affordable price. With 300 watts per channel into 4 Ω and 430 into 2 Ω, all in a chassis that is less than 16" deep, the RMX850a is perfectly suited for performing musicians. The RMXa Series is an update on a proven line of amplifiers

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

• 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

Specifications

Power per Channel, Stereo Mode (both channels driven) 8Ω, EIA 1 kHz, 0.1% THD:

• 200 W

Power per Channel, Stereo Mode (both channels driven) 4Ω, EIA 1 kHz, 0.1% THD:

• 300 W

Power per Channel, Stereo Mode (both channels driven) 8Ω, FTC 20 Hz–20 kHz, 0.1% THD:

• 185 W

Voltage:

• USA 120v

Power per Channel, Stereo Mode (both channels driven) 4Ω, FTC 20 Hz–20 kHz, 0.1% THD:

• 280 W

Input Sensitivity at 8Ω:

• 1.15V (+3.4dBu)

Power per Channel, Stereo Mode (both channels driven) 2Ω, EIA 1 kHz, 1% THD:

• 430 W

Power, Bridge-Mono Mode 4Ω, EIA 1 kHz, 1% THD:

• 830 W

Power per Channel, Stereo Mode (both channels driven) 2Ω, FTC 20 Hz–20 kHz, 1% THD:   Power, Bridge-Mono Mode 8Ω, FTC 20 Hz–20 kHz, 0.1% THD:

• 530 W

Power, Bridge-Mono Mode 8Ω, EIA 1 kHz, 0.1% THD:

• 600 W

Output Circuitry:

• Class AB

Distortion (SMPTE-IM):

• < 0.01%

Signal to Noise (20 Hz–20 kHz):

• -100 dB

Current Draw (120 V AC) Typical, 1/8 power pink noise at 4Ω*:

• 4.5 A

AC Mains Plug 230V:

• CEE7/7

Voltage Gain:

• 31.6x (30 dB)

Distortion (typical) 20 Hz–20 kHz, 10 dB below rated power:

• < 0.03% THD, 4Ω and 8Ω

Current Draw (120 V AC) Severe, 1/3 power pink noise at 4Ω*:

• 6.6 A

AC Mains Plug 100/120V:

• NEMA 5-15

Frequency Response:

• 20 Hz–20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed, 8Ω)

Weight Net:

• 35 lb (15.9 kg)

Distortion (typical) 1 kHz and below, full rated power:

• < 0.03% THD, 4Ω and 8Ω

Input Impedance:

• 10 kΩ unbalanced; 20 kΩ balanced

Damping Factor (1 kHz and below):

• > 300 at 8Ω

Input Stage Clipping:

• 10 V rms (+22 dBu)

Weight Shipping:

• 41 lb (18.6 kg)

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+)