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QSC RMX 850 power amp (1 Viewer)


Jan 20, 2001
I am selling my QSC amp that I used for my sub. I am willing to part with it for $120.00 Plus Shipping!! .

Please see my sellers rating over at www.audiogon.com under my HTF user name "Martice".


I will take Paypal and Money Orders. .

Item is in perfect condition with a minor nicks on the bottom of the unit.

Good Luck and thanks in advance.


8 ohms: 200W

4 ohms: 300W

2 ohms: 430W

8 ohms Bridge Mono: 600W

4 ohms Bridge Mono: 830W

Signal to Noise (20 Hz-20 kHz): 100 dB

Distortion (SMPTE-IM): Less than 0.01%

Input Sensitivity @ 8 ohms: 1.15v (+3.4 dBu)

Voltage Gain: 31.6x (30 dB)

Output Circuitry: AB

Current Consumption (1/8 power pink noise at 4 ohms @ 120VAC,

both channels driven; multiply current by .5 for 230V units.): 5A

Weight (Net): 35 lbs. (15.9 kg)

Distortion (typical):
20 Hz-20 kHz: 10 dB below rated power: Less than 0.03% THD 4 and 8 ohms
1.0 kHz and below: full rated power: Less than 0.03% THD 4 and 8 ohms

Frequency Response:
20 Hz-20 kHz, ± 0/-1 dB, -3 dB points: 5 Hz-50 kHz
Damping Factor (1 kHz and below): Greater than 300 at 8 ohms

Input Impedance: 10 K ohms unbalanced, 20 K ohms balanced

Input Clipping: 10 Vrms (+22dBu)

Cooling: Continuously variable speed fan, rear-to-front air flow

Connectors (each channel):

Input: Active balanced; barrier strip, XLR, and 1/4 in. (6.3 mm)
TRS tip and XLR pin 2 positive

Output: "Touch-proof" binding posts and Neutrik Speakon

Front: AC switch, Ch. 1, and Ch. 2 gain knobs
Rear: 10-position DIP switch

PWR-ON: Green LED SIGNAL: Yellow LED (1 per channel)
CLIP: Red LED (1 per channel)
Amplifier Protection: Full short circuit, open circuit, thermal, ultrasonic, and RF protection. Stable into reactive or mismatched loads.

Load Protection: Turn-on/off muting, AC coupling (850, 1450), triac crowbar (2450, on each channel)

19 in. (48.3 cm) rack mounting, 3.5 in. (8.9 cm) tall (2 rack spaces),
15.9 in. (40 cm) deep (rack mounting to rear support ears)

Power Requirements: 100, 120, 230 VAC, 50-60 Hz

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