Name: Power Amplifier Bosch PRS-2B250
Brand: Bosch
SKU: 32688
Price: 40093 UAH
Availability: InStock

The basic amplifiers are cost effective alternatives to the regular Praesideo power amplifiers, for situations where no built-in digital signal processing functions, such as equalizers, delay and AVC are required. They do not have a Praesideo network connection. Instead, these amplifiers are connected to the Praesideo network via the PRS-16MCI Multi Channel Interface, which provides the basic amplifier with audio signals and has full control. There are two versions, the PRS-1B500 (1 x 500 W), and the PRS-2B250 (2 x 250 W).

The basic amplifiers are completely supervised and fault events are reported via the multi channel interface (IEC 60849 compliant) to the Praesideo network controller. The basic amplifiers provide connections for separate group A and group B loudspeakers for each zone, and support class-A loudspeaker loop wiring. The units should be mounted in a 19"-rack with the included mounting brackets.

High efficiency class-D amplifier channel(s)
Switched mode power supply
Local audio inputs
Mains and battery operation
Complete supervision
IEC 60849 compliant

Characteristics:

Depth : 400 mm
Depth : 15.75 in
Height : 88 mm
Height : 3.46 in
Power Consumption : (Pmax -3 dB / idle / standby)
Total Harmonic Distortion : <0.3% (1kHz) at 50% of rated power
Voltage : 48 VDC -10% to +20%
Voltage : 115/230 VAC ±10%, 50/60 Hz
Width : 483 mm
Width : 19.02 in
Speaker Outputs : PRS-1B500
Speaker Outputs : PRS-2B250
Signal to Noise : >85 dB with pilot tone off
Mounting Width : 482.60 mm
Mounting Width : 19 in
Cross Talk : -70 dB (1 kHz) nominal (only multichannel)
Local Audio Input : 0 dBV (symmetrical)
Product Weight : 14 kg
Product Weight : 30.86 lbs
In front of brackets : 40 mm (1.6 in)
Behind brackets : 360 mm (14.2 in)
Rated load resistance : 20 ohm (100 V); 10 ohm (70 V)
Rated load resistance : 40 ohm (100 V); 20 ohm (70 V)
Rated load capacitance : 250 nF (100 V); 500 nF (70 V)
Rated load capacitance : 125 nF (100 V); 250 nF (70 V)
PRS-2B250 : 370 / 38 / 6 W
500 W : (1 min. at 55 °C)
250 W : (30 min. at 55 °C, cont. at 30 °C)
250 W : (1 min. at 55 °C)
125 W : (30 min. at 55 °C, cont. at 30 °C)
125 W : (cont. at 55 °C)
60 W : (cont. at 55 °C)
Color : Charcoal with silver
Minimum Frequency Response (Bandwidth) : 60 Hz
Minimum Frequency Response (Bandwidth) : 0.06 kHz
Maximum Frequency Response (Bandwidth) : 19000 Hz
Maximum Frequency Response (Bandwidth) : 19 kHz
Operating Temperature (Maximum) : 55 C
Operating Temperature (Maximum) : 131 F
Operating Temperature (Minimum) : -5 C
Operating Temperature (Minimum) : 23 F

Power Amplifier Bosch PRS-2B250

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