QSC RMX850a 2 channels, 200 watts/ch at 8Ω, 300 watts/ch at 4Ω, 430 watts/ch at 2Ω
Vendor: QSC
Available
QSC RMX850a 2 channels, 200 watts/ch at 8Ω, 300 watts/ch at 4Ω, 430 watts/ch at 2Ω
The QSC's RMXa Series amplifiers is offering a true professional-quality performance at an affordable price. It have a three 2-rackspace models range in power from 430 to 1200 watts per channel at 2 ohms. At 2 ohms also, there are Two 3-rackspace models providing 2000 to 2500 watts per channel. All these five models are featuring the same compact chassis less than 16” deep. RMXa amplifiers are including a comprehensive set of features which includes XLR and 1/4” balanced inputs, Speakon® and binding post outposts for convenient connectivity. Selectable low-frequency filters and user-defeatable clip limiters optimize sonic performance. QSC RMX850a is a professional quality performance, incorporating road-proven QSC designs.
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
Model | RMX 850a | ||||
Power per Channel, Stereo Mode (both channels driven) | |||||
8Ω, FTC 20 Hz–20 kHz, 0.1% tdD | 185 W | ||||
8Ω, EIA 1 kHz, 0.1% tdD | 200 W | ||||
4Ω, FTC 20 Hz–20 kHz, 0.1% tdD | 280 W | ||||
4Ω, EIA 1 kHz, 0.1% tdD | 300 W | ||||
2Ω, FTC 20 Hz–20 kHz, 1% tdD | – | – | – | ||
2Ω, EIA 1 kHz, 1% tdD | 430 W | ||||
Power, Bridge-Mono Mode | |||||
8Ω, FTC 20 Hz–20 kHz, 0.1% tdD | 530 W | ||||
8Ω, EIA 1 kHz, 0.1% tdD | 600 W | ||||
4Ω, EIA 1 kHz, 1% tdD | 830 W | ||||
Signal to Noise (20 Hz–20 kHz) | -100 dB | ||||
Distortion (SMPTE-IM) | < 0.01% | ||||
Input Sensitivity at 8Ω | 1.15V (+3.4dBu) | ||||
Voltage Gain | 31.6x (30 dB) | ||||
Output Circuitry | Class AB | ||||
Current Draw (120 V AC) Typical, 1/8 power pink noise at 4Ω* Severe, 1/3 power pink noise at 4Ω* |
4.5 A 6.6 A |
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AC Mains Plug 100/120V 230V |
NEMA 5-15 CEE7/7 |
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Weight Net Shipping |
35 lb (15.9 kg) 41 lb (18.6 kg) |
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Distortion (typical) 20 Hz–20 kHz, 10 dB below rated power 1 kHz and below, full rated power |
< 0.03% tdD, 4Ω and 8Ω < 0.03% tdD, 4Ω and 8Ω |
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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 | 10 kΩ unbalanced; 20 kΩ balanced | ||||
Input Stage Clipping | 10 V rms (+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® |
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Controls | Front: AC switch; Channel 1 & 2 gain knobs Rear: 10-position DIP switch |
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LED Indicators | Power on: Green; Signal: Yellow (1 per channel); Clip/Protect: Red (1 per channel) | ||||
Amplifier Protection | Full short circuit, open circuit, tdermal, ultrasonic, RF protection. Stable into reactive or mismatched loads | ||||
Load Protection | Turn-on/off muting; AC coupling (850, 1450); Triac crowbar (1850HD, 2450, 4050HD, 5050) on each channel | ||||
Dimensions | 3.5-inch (8.9 cm) tall; 2 rack spaces | ||||
Power Requirements | 100, 120, 230 V AC (factory configured), 50–60 Hz |