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Power Amplifier LBB1938/30
Product Features
- 480 W power amplifier in a 3U high 19” housing
- EN 54?16 certified
- 70 V / 100 V and 8 Ohm outputs
- Dual inputs with priority switching
- 100 V input for slave operation on 100 V speaker line
Technical Specification
| Mains power supply | |
| Voltage | 220/230 VAC, ±10%, 50/60 Hz |
| Inrush current | 19 A |
| Max power consumption | 2200 VA |
| Performance | |
| Output power (rms/maximum) | 480 W / 720 W |
| Power reduction on backup power | -1 dB |
| Frequency response | 50 Hz to 20 kHz (+1/‑3 dB @ ‑10 dB ref. rated output) |
| Distortion | <1% @ rated output power, 1 kHz |
| S/N (flat at max volume) | >90 dB |
| Line inputs | 2x |
| Connector | 3‑pin XLR, balanced |
| Sensitivity | 1 V |
| Impedance | 20 kOhm |
| CMRR | >25 dB (50 Hz to 20 kHz) |
| Gain | 40 dB |
| 100 V input | |
| Connector | Screw, unbalanced |
| Sensitivity | 100 V |
| Impedance | 330 kOhm |
| Line loop-through output | 2x |
| Connector | 3‑pin XLR |
| Nominal level | 1 V |
| Impedance | Direct connection to line input |
| Power consumption | |
| Mains operation | |
| Max power | 990 W |
| -3 dB | 715 W |
| 6 dB | 510 W |
| Pilot tone* | 110 W |
| Idle | 25 W |
| 24 VDC operation | |
| Max power | 32 A (770 W) |
| Relative humidity | <95% |
| Acoustic noise level of fan | <48 dB SPL @ 1 m (max output) |
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