PRS-2P250-EU

The PRS-2P250 Power Amplifier receives input signals over the network. They have two auxiliary audio inputs for local audio, and eight control inputs which are easily programmable for actions, and priorities can also be assigned to these inputs. That control input is capable of controlling open and short circuits on the attached panel. Control outputs are freely programmable for faults and call-related actions.

The units are self-monitoring and continually report their status to the network controller. They support both single branch and redundant loop cabling. The amplifiers have a changeover facility for spare power amplifier switching. Changeover relays are included with the units. The amplifiers have a 48 V DC back-up supply input.

The digital audio processing can handle three parametric equalization sections and two shelving equalization sections per channel with configurable audio delay.

Features

• Audio processing and delay for each amplifier channel

• Amplifier supervision and spare amplifier switching

• Loudspeaker line and loudspeaker supervision
  

• Eight control inputs and 1, 2, 4 or 8 control outputs
  

  Electrical
  Main Power Supply
  PRS‑xPxxx	115 / 230 VAC ±10%, 50/60 Hz
  Power consumption	Pmax -3 dB*/ idle / standby
  PRS‑2P250	350 / 53 / 21 W
  Battery power supply
  Voltage	48 VDC -10% to +20%
  Power consumption	Pmax -3 dB* / idle** / standby
  PRS‑2P250	330 / 43 / 11 W
  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)
  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‑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
  Mechanical
  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‑2P250	13.6 kg (29.98 lb)
  Mounting	Standalone; 19”-rack
  Color	Charcoal with silver
  Environmental
  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%