1, 2, 4, or 8 audio outputs (selection from 100 / 70 / 50 V outputs)
Audio processing and delay for each amplifier channel
Amplifier supervision and spare amplifier switching
Loudspeaker line and loudspeaker supervision (LBB 4428/00 only line supervision)
Eight control inputs and 1, 2, 4 or 8 control outputs
Supervision of line attached to control inputs
Automatic volume control
Two audio inputs (four audio inputs for LBB 4428/00)
Redundant network connection
| PRS‑xPxxx | 115 / 230 VAC ±10%, 50/60 Hz |
| LBB 4428/00 | 100 to 240 VAC ±10%, 50/60 Hz |
| Power consumption | Pmax -3 dB* / idle** / standby |
| PRS‑1P500 | 350 / 50 / 20 W |
| PRS‑2P250 | 350 / 53 / 21 W |
| PRS‑4P125 | 350 / 66 / 23 W |
| LBB 4428/00 | 430 / 90 / 32 W |
| * Alarm tone level** With pilot tone 15 V | |
| Battery power supply | |
| Voltage | 48 VDC -10% to +20% |
| Power consumption | Pmax -3 dB* / idle** / standby |
| PRS‑1P500 | 330 / 40 / 10 W |
BOSCH |
