Interconnections
• Mains input
• Battery backup input
• Two system network connections
• Two mic/line inputs (four for LBB 4428/00)
• Selectable 100 V, 70 V or 50 V outputs (per channel)
• Fixed 50 V output
• Eight programmable control inputs
• Control output (for each amplifier channel)
• Headphone output
• Spare amplifier connection (for each amplifier
channel)
Certifications and approvals
Safety
acc. to IEC 60065 / EN 60065
Immunity
acc. to EN 55103‑2 / EN 50130‑4 /
EN 50121‑4
Emissions
acc. to EN 55103-1 / FCC-47 part 15B
Emergency
acc. to EN 60849 / EN 54‑16 /
ISO 7240‑16
Maritime
acc. to IEC 60945
Region
Certification
Europe
CPD
CPD
_V3.6_&_V4.0
Installation/configuration notes
2
7
6
5
4
12
11
10
9
3
1
8
1
Audio inputs, 2 x or 4 x
2
Control inputs
3
Plastic optical fiber network
4
Loudspeaker outputs, 1 x, 2 x, 4 x, 8 x
5
Spare amplifier input
6
Control outputs, 1 x, 2 x, 4 x, 8 x
7
Mains input
8
48 V backup supply
9
Display and control
10
Network processor and DSP
11
Network redundancy switching
12
Power supply
Block diagram
Parts included
Quantit
y
Component
1
PRS‑xPxxx or LBB 4428/00 Power Amplifier
1
Power cord
1
Set of mounting brackets (large) for 19” rack
1
Set of feet
1
Set of connectors
Technical specifications
Electrical
Mains power supply
Voltage
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
PRS‑2P250
330 / 43 / 11 W
PRS‑4P125
330 / 56 / 13 W
LBB 4428/00
400 / 65 / 22 W
* Alarm tone level
** With pilot tone 15 V
2 | PRS‑xPxxx and LBB 4428/00 Power Amplifiers