RMX 1450
Rentals/Manufacturers/Sound/QSC
Amplifier
The QSC RMX 1450 Power Amp combines rugged high-output design with the latest circuit technology to deliver unmatched performance at a breakthrough price. RMX power amps require only 2 rack spaces and feature 1/4" TRS, XLR, and barrier strip balance inputs; binding post and Neutrik Speakon outputs; front-mounted gain controls for easy access; independent and defeatable clip limiters; selectable low-frequency filters (30Hz or 50Hz) that protect speakers and increase headroom; signal and clip LED indicators; independent DC and thermal overload protection on each channel; variable-speed fan. All include a 3-year warranty. Stereo: 280W @ 8 ohms, 450W @ 4 ohms, and 700W @ 2 ohms. Bridge mono: 900W @ 8 ohms, 1400W @ 4 ohms.
| Stereo Mode (both channels driven) 260 W | 8Î/ FTC 20 Hz - 20 kHz / 0.1% THD 300 W |
| 8Î/ EIA 1 kHz / 0.1% THD 400 W | |
| 4Î/ FTC 20 Hz - 20 kHz / 0.1% THD 500 W (0.5% THD) | |
| 4Î/ EIA 1 kHz / 0.1% THD - | |
| 2Î/ FTC 20 Hz - 20 kHz / 1% THD 700 W | |
| 2Î/ EIA 1 kHz / 1% THD | |
| Bridge-Mono Mode 800 W | 8Î/ FTC 20 Hz - 20 kHz / 0.1% THD 900 |
| 8Î/ EIA 1 kHz / 0.1% THD 1400 W | |
| 4Î/ EIA 1 kHz / 1% THD | |
| Signal to Noise (20 Hz - 20 kHz) | 8Î > -100 dB |
| Distortion (SMPTE-IM) | < 0.01% |
| Input Sensitivity at 8Î | 1.15V (+3.4 dBu) |
| Voltage Gain | 40x (32 dB) |
| Output Circuitry Class | AB |
| Power Requirements | 6.0 A |
| Weight | 40 lb (18.2 kg) |
| Distortion | 20 Hz - 20 kHz: 10 dB below rated power < 0.03% THD / 4Îand 8Î |
| 1.0 kHz and below: full rated power < 0.03% THD / 4Îand 8Î | |
| Frequency Response 20 Hz - 20 kHz: | +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed / 8Î) |
| Damping Factor (1 kHz and below) | > 300 at 8Î |
| Input Impedance | 10k ohms unbalanced / 20k ohms balanced |
| Input Clipping | 10 Vrms (+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 |
| Controls Front | AC switch / Ch. 1 & 2 gain knobs |
| Rear | 10-position DIP switch |
| Indicators | Power-on: Green LED |
| Signal: Yellow LED (1 per channel) | |
| Clip: Red LED (1 per channel) | |
| Protect: Red LED | |
| Amplifier Protection | Full short circuit |
| open circuit | |
| thermal | |
| 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" (8.9 cm) tall / 2 rack spaces |
| Power Requirements | 100, 120, 230 VAC, 50 - 60 Hz |
