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3863718155
3863718155
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PRS‑xPxxx and LBB 4428/00 Power Amplifiers

PRS‑xPxxx and LBB 4428/00 Power Amplifiers
  • 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

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
Mic/line inputs 2 x (4 x for LBB 4428/00)
Connector 6-pole header for removable screw connector (mono, balanced)
Line
   Frequency response -3 dB @ 50 Hz and 20 kHz (±1 dB)
   S/N >87 dBA
   CMRR >40 dB @ 1 kHz
   Input range -6 dBV to 6 dBV
   Input impedance 22 kohm
Mic
   Frequency response -3 dB @ 100 Hz and 16 kHz
   Nominal input level -57 dBV
   S/N >62 dBA with 25 dB headroom
   CMRR 40 dB at 1 kHz
   Input impedance 1360 ohm
   Phantom supply 12 V ±1 V @ 15 mA
   Input range -7 dBV to +8 dBV ref nominal input value
Control inputs 8 x
Connectors Removable screw terminals
Operation Closing contact (with supervision)
Control outputs 1 x per amplifier channel
Connectors Removable screw terminals
Performance
Frequency response
   PRS‑xPxxx 60 Hz to 19 kHz (-3 dB)
   LBB 4428/00 80 Hz to 19 kHz (-3 dB)
S/N >85 dB (no pilot tone)
Crosstalk <80 dB at nominal load for 1 kHz
Distortion <0.3% (@ 1 kHz) @ 50% of rated output power
Loudspeaker outputs PRS‑1P500
Rated load resistance 20 ohm (100 V); 10 ohm (70 V) 5 ohm (50 V)
Rated load capacitance 250 nF (100 V); 500 nF (70 V) 1000 nF (50 V)
Rated output power(per channel)    500 W (1 min. at 55 °C)
250 W (30 min. at 55 °C, cont. at 30 °C)
125 W (cont. at 55 °C)
Connector 9‑pole header for removable screw connector
Loudspeaker outputs PRS‑2P250
Rated load resistance 40 ohm (100 V); 20 ohm (70 V) 10 ohm (50 V)
Rated load capacitance 125 nF (100 V); 250 nF (70 V) ) 500 nF (50 V)
Rated output power(per channel)    250 W (1 min. at 55 °C)
125 W (30 min. at 55 °C, cont. at 30 °C)
60 W (cont. at 55 °C)
Connector 9‑pole header for removable screw connector
Loudspeaker outputs PRS‑4P125
Rated load resistance 80 ohm (100 V); 40 ohm (70 V) 20 ohm (50 V)
Rated load capacitance 62 nF (100 V); 125 nF (70 V) ) 250 nF (50 V)
Rated output power(per channel)    125 W (1 min. at 55 °C)
60 W (30 min. at 55 °C, cont. at 30 °C)
30 W (cont. at 55 °C)
Connector 9‑pole header for removable screw connector
Loudspeaker outputs LBB 4428/00
Rated load resistance 166 ohm (100 V); 83 ohm (70 V) 42 ohm (50 V)
Rated load capacitance 30 nF (100 V); 60 nF (70 V) ) 120 nF (50 V)
Rated output power(per channel)    60 W (1 min. at 55 °C)
30 W (30 min. at 55 °C, cont. at 30 °C)
15 W (cont. at 55 °C)
Connector 9‑pole header for removable screw connector
Dimensions (H x W x D)
for tabletop use, with feet 92 x 440 x 400 mm(3.6 x 17.3 x 15.7 in)
for 19” rack use, with brackets 88 x 483 x 400 mm(3.5 x 19 x 15.7 in)
   in front of brackets 40 mm (1.6 in)
   behind brackets 360 mm (14.2 in)
Weight
   PRS‑1P500 12.6 kg (27.78 lb)
   PRS‑2P250 13.6 kg (29.98 lb)
   PRS‑4P125 16.1 kg (35.49 lb)
   LBB 4428/00 15.8 kg (34.83 lb)
Mounting Standalone; 19”-rack
Color Charcoal with silver
Operating temperature -5 ºC to +55 ºC (+23 ºF to +131 ºF)
Storage temperature -20 ºC to +70 ºC (-4 ºF to +158 ºF)
Relative humidity 15% to 90%
Air pressure 600 to 1100 h Pa

Images

 
Title Type Language
CPD PDF
CE PDF
 
Title Type Language
Data Sheet PDF
 
 

Accessories

LBB 4443/00‑CN End of Line (EOL) Supervision Board

Line supervision slave PCB for connecting to the end of a loudspeaker line or the end of a spur, operates with LBB4440/00 to monitor the integrity of the line, Chinese version.

Commercial Type No.: LBB4443/00-CN
Product No.: F.01U.097.260

 

LBB 4440/00‑CN Supervision Control Board

Line and loudspeaker supervision master PCB for mounting in a Praesideo network connected power amplifier, one board is needed per channel, Chinese version.

Commercial Type No.: LBB4440/00-CN
Product No.: F.01U.097.258

 
 
LBB 4443/00 End of Line (EOL) Supervision Board

LBB 4443/00 End of Line (EOL) Supervision Board

Line supervision slave PCB for connecting to the end of a loudspeaker line or the end of a spur, operates with LBB4440/00 to monitor the integrity of the line.

Commercial Type No.: LBB4443/00
Product No.: F.01U.513.884

 

LBB 4442/00‑CN Line Supervision Set

Master and slave PCB for supervisiing a single loudspeaker line, the master is mounted in a Praesideo network connected power amplifier (one per channel), the slave is connected at the end of the loudspeaker line, Chinese version.

Commercial Type No.: LBB4442/00-CN
Product No.: F.01U.097.257

 
 

LBB 4441/00‑CN Loudspeaker Supervision Board

Loudspeaker supervision slave PCB for mounting on a loudspeaker, operates with LBB4440/00 for monitoring the integrity of the loudspeaker, Chinese version.

Commercial Type No.: LBB4441/00-CN
Product No.: F.01U.097.259

 
LBB 4440/00 Supervision Control Board

LBB 4440/00 Supervision Control Board

Line and loudspeaker supervision master PCB for mounting in a Praesideo network connected power amplifier, one board is needed per channel.

Commercial Type No.: LBB4440/00
Product No.: F.01U.513.883

 
 
LBB 4441/00 Loudspeaker Supervision Board

LBB 4441/00 Loudspeaker Supervision Board

Loudspeaker supervision slave PCB for mounting on a loudspeaker, operates with LBB4440/00 for monitoring the integrity of the loudspeaker.

Commercial Type No.: LBB4441/00
Product No.: F.01U.513.868

 
LBB 4442/00 Line Supervision Set

LBB 4442/00 Line Supervision Set

Master and slave PCB for supervisiing a single loudspeaker line, the master is mounted in a Praesideo network connected power amplifier (one per channel), the slave is connected at the end of the loudspeaker line.

Commercial Type No.: LBB4442/00
Product No.: F.01U.074.440