QSC RMX 850 Power Amp
RMX amplifiers deliver true studio-quality sound. A full complementary output circuit using the highest-grade linear output devices delivers ultra-low distortion ( <0.05% THD) & a ruler-flat frequency response. SMT (Surface Mount Technology) triples small-signal component density, enabling us to pack up to 2400 watts of power in a chassis only 2 rack spaces & less than 16" deep. And unlike other designs, RMX output devices are direct-mounted to the heat sink for optimum thermal coupling & cooling.

Power Rating: 8 / both channels driven / 1 kHz: 300 W 8 / single channel driven / 1 kHz: 350 W 4 / both channels driven / 1 kHz; 425 W 4 / single channel driven / 1 kHz; 500 W 2 / both channels driven / 1 kHz; 200 W Distortion (typical): 20 Hz - 20 kHz: 1 dB below rated power 8 : less than 0.05% / 4 : less than 0.1% Signal to Noise: (20 Hz - 20 kHz) 100 dB Input Sensitivity: 1.2 Vrms Voltage Gain: (8 ) 32.2 dB Output Circuitry: Class B Power Requirements: (1/8 power, pink noise at 4 , 120 V) 6.3A Frequency Response: 20 Hz - 20 kHz, +0, 1 dB Dynamic Headroom (4 ): 2 dB Damping Factor: 100 Input Impedance ( ): Greater than 20k (balanced) Maximum Input Level: +24 dB (16 Vrms) Input Connectors (each channel): 3-pin XLR and 1/4" TRS, balanced, parallel Phono, unbalanced Output Connectors (each channel) Speakon®, 1/4", Binding Posts Amplifier and Load Protection: Short circuit, open circuit, thermal, RF protection Load protected against DC faults Front Panel Controls and Indicators: Gain controls, 21 detents Red Clip LEDs, proportional, 0.1% THD threshold Green Signal LEDs, threshold -35 dB Blue Power LED, AC on Rear Panel Controls: Full Range / Crossover switch 100 Hz, 3rd order LP (sub), 2nd order HP (top) Dimensions (HWD): 3.5" (2RU) x 19" x 10.1" (89 mm x 483 mm x 257 mm) Weight: Shipping / Net 30 (13.5 kg) / 25 lbs (11.5 kg) Agency Approvals: UL, CE, RoHS/WEEE compliant