QSC RMX850a
Two-Channel Power Amplifier
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
| Specification | RMX 850a |
|---|---|
| Power per Channel (Stereo) | |
| 8Ω, FTC 20 Hz–20 kHz, 0.1% THD | 185 W |
| 8Ω, EIA 1 kHz, 0.1% THD | 200 W |
| 4Ω, FTC 20 Hz–20 kHz, 0.1% THD | 280 W |
| 4Ω, EIA 1 kHz, 0.1% THD | 300 W |
| 2Ω, EIA 1 kHz, 1% THD | 430 W |
| Bridge-Mono Mode | |
| 8Ω, FTC 20 Hz–20 kHz, 0.1% THD | 530 W |
| 8Ω, EIA 1 kHz, 0.1% THD | 600 W |
| 4Ω, EIA 1 kHz, 1% THD | 830 W |
| Signal to Noise (20 Hz–20 kHz) | -100 dB |
| Distortion (SMPTE-IM) | < 0.01% |
| Input Sensitivity at 8Ω | 1.15V (+3.4 dBu) |
| Voltage Gain | 31.6x (30 dB) |
| Output Circuitry | Class AB |
| Current Draw (120V AC) | Typical: 4.5 A, Severe: 6.6 A |
| AC Plug | NEMA 5-15 (100/120V), CEE7/7 (230V) |
| Distortion (typical) | < 0.03% (4Ω and 8Ω) |
| Frequency Response | 20 Hz–20 kHz: +0/-1 dB (LF filter bypassed) |
| Damping Factor (1 kHz) | > 300 at 8Ω |
| Input Impedance | 10 kΩ unbalanced, 20 kΩ balanced |
| Input Stage Clipping | 10 V rms (+22 dBu) |
| Cooling | Variable speed fan, back-to-front |
| Connectors | Inputs: XLR, Euroblock; Outputs: Binding posts, Speakon® |
| Controls | Front: AC switch, gain knobs; Rear: DIP switch |
| LED Indicators | Power, Signal, Clip/Protect |
| Amplifier Protection | Full protection incl. short/open/thermal |
| Load Protection | Turn-on/off muting, AC coupling |
| Dimensions (H×W×D) | 89×482×404 mm / 3.5×19×15.9 in (2RU) |
| Carton Dimensions | 610×560×153 mm / 24×22×6 in |
| Net Weight | 15.9 kg / 35 lb |
| Shipping Weight | 18.6 kg / 41 lb |
| Power Requirements | 100, 120, 230V AC, 50–60 Hz (factory set) |
Additional information
Additional information
| Brand | |
|---|---|
| Series |
Reviews (0)
Reviews
There are no reviews yet.