เครื่องขยายเสียง ยี่ห้อ QSC รุ่น PLX1802
Features
- Very light weight (“02” models, 21 lb / 9.5 kg, “04” models 13 lb / 5.9 kg).
- Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged.
- Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators.
- Two Speakon® NL4 output connectors provide positive-locking speaker connections. Upper connector provides both channel outputs on all four poles (Channel 1: 1+, 1-; channel 2: 2+, 2-) for bridged mono or for single-cable connection to bi-amplified speakers.
- 21-position front-panel gain controls for precise, repeatable amplifier adjustment.
- Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation.
- Patented PowerLight power supply technology with other patents pending.
| PLX1104 (discont’d) | PLX1804 (discont’d) | PLX1802 | PLX2502 | PLX3102 | PLX3602 | |
| Rated Power per Channel, Stereo Mode (both channels driven)* | ||||||
| 8Ω FTC 20 Hz–20 kHz 0.05% THD | 310 W | 550 W | 320 W | 425 W | 550 W | 725 W |
| 8Ω EIA 1 kHz 0.1% THD | 325 W | 600 W | 330 W | 450 W | 600 W | 775 W |
| 4Ω FTC 20 Hz–20 kHz 0.05% THD | 500 W | 800 W | 525 W | 675 W | 900 W | 1100 W |
| 4Ω EIA 1 kHz 0.1% THD | 550 W | 900 W | 575 W | 750 W | 1000 W | 1250 W |
| 2Ω EIA 1 kHz 1% THD | − | − | 900 W | 1250 W | 1550 W | 1800 W |
| Rated Power, Bridge-Mono Mode* | ||||||
| 8Ω20 Hz–20 kHz 0.1% THD | − | − | 1100 W | 1400 W | 1900 W | 2500 W |
| 8Ω EIA 1 kHz 0.1% THD | − | − | 1200 W | 1500 W | 2100 W | 2600 W |
| 4Ω EIA 1 kHz 1% THD | − | − | 1800 W | 2500 W | 3100 W | 3600 W |
| Signal to Noise (20 Hz–20 kHz) | -106 dB | -106 dB | -107 dB | -106 dB | -107 dB | -107 dB |
| Input Sensitivity at 8Ω | 1.18 V rms | 1.20 V rms | 1.28 V rms | 1.15 V rms | 1.23 V rms | 1.25 V rms |
| Maximum Voltage Gain | 32.5 dB | 35 dB | 32 dB | 34 dB | 35 dB | 36 dB |
| Output Circuitry | Class AB | 2-tier Class H | Class AB | 2-tier Class H | 2-tier Class H | 2-tier Class H |
| Power Requirements (1/8 power, pink noise at 4Ω) | 8 A /120V | 9.4 A /120V | 8.7 A /120V | 7.5 A /120V | 9.5 A /120V | 11.5 A /120V |
| Series-wide specifications | ||
| 04 MODELS (Discontinued) | 02 MODELS | |
| Distortion (SMPTE-IM) | < 0.02% | < 0.02% |
| Distortion (typical) | – | – |
| 1/8 rated power, 20 Hz–20 kHz | < 0.02% | < 0.02% |
| Full rated power, 20 Hz–20 kHz | < 0.02% | < 0.02% |
| Damping Factor (8Ω) | > 200 | > 500 |
| Input Impedance | 10 kΩ unbalanced / 20 kΩ balanced | 10 kΩ unbalanced / 20 kΩ balanced |
| Input Clipping | 5.5 V rms (+15 dBu) | 11 V rms (+21 dBu) |
| Cooling | Variable-speed fan, rear-to-front air flow | Variable-speed fan, rear-to-front air flow |
| Input Connectors, each channel | 3-pin XLR and 1/4-inch TRS balanced, parallel | 3-pin XLR and 1/4-inch TRS balanced, parallel |
| Output Connectors, each channel | Two Neutrik NL4 Speakon® Both channels available on upper NL4 connector |
Two Neutrik NL4 Speakon® and four touch-proof binding posts Both channels available on upper NL4 connector |
| Amplifier Protection | Full short circuit, open circuit, thermal, infrasonic, ultrasonic, and RF protection. Stable into reactive or mismatched loads |
Full short circuit, open circuit, thermal, infrasonic, ultrasonic, and RF protection. Stable into reactive or mismatched loads |
| Load Protection | On/off muting, DC-fault power supply shutdown | On/off muting, DC-fault power supply shutdown |
| Dimensions Height Width |
89 mm / 3.5 in; 2 RU 483 mm / 19 in |
89 mm / 3.5 in; 2 RU 483 mm / 19 in |
| Depth —Rack mounting surface to rear —Overall |
227 mm / 8.95 in 279 mm / 11 in |
326 mm / 12.8 in 379 mm / 14.875 in |
| Carton Dimensions (H×W×D) | n/a | 610 × 460 × 152 mm 24 × 18 × 6 in |
| Weight—Net | 5.9 kg / 13 lb | 9.5 kg / 21 lb |
| Weight—Shipping | 8.2 kg / 18 lb | 12.3 kg / 27 lb |
| Agency Approvals | CE, FCC, cUL, UL | CE, FCC, cUL, UL |
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