Bosch Appliances 3.5 manual 8.8.11Loudspeaker outputs and spare inputs

Praesideo 3.5 Installation and User Instructions 4 Amplifiers

en 154

8.8.11Loudspeaker outputs and spare inputs

Connector (rear side):

1x 9 pole header (type ETB 43-09-2-G1 (ECE)) with removable screw connector (shared with control outputs)

Voltage:

100 V, 70 V, 50 V (jumper setting)

Max. unloaded voltage: 200 V peak

Rated load resistance:

@100/70/50 V output PRS-1P500 20/10/5 ohm

PRS-2P250 40/20/10 ohm PRS-4P125 80/40/20 ohm LBB4428 166/83/42 ohm

Rated load capacitance:

@100/70/50 V output PRS-1P500

250/500/1000 nF PRS-2P250 125/250/500 nF PRS-4P125 60/125/250 nF LBB4428 30/60/120 nF Rated output power:

@ a/b/c/d/e/f operating condition PRS-1P500

1 x 500/425/275/185/185/125 W PRS-2P250

2 x 250/210/150/105/105/60 W PRS-4P125

4 x 125/105/65/60/60/30 W LBB4428

8 x 60/50/40/30/30/15 W Distortion:

<0.3% at 1 kHz and 50% of the rated output power

<1% at 100% of output power

Output regulation no load to full load: <1.2 dB for 50, 70 and 100V output Frequency response:

60 Hz to 19 kHz (-3 dB) at -10 dB with maximum capacitive load and rated load resistance

Power bandwidth:

60 Hz - 19 kHz (-3 dB, distortion < 1%) at 50% of the rated output power

Signal/Noise ratio:

> 85 dBA with pilot tone off Amplifier output limiting: Soft clipping

Ground short detection resistance: < 50 ohm

Acoustical noise level:

<NR35 at 1 m, fans at half speed, table-top

<NR40 at 1 m, fans at full speed, table-top

aDistortion < 1%, 1 kHz, nominal mains power or battery >53V, max. 1 minute (acc. to IEC 60268-3).

bDistortion < 1%, 1 kHz, mains power or battery >50V, max. 1 minute, ambient temperature 55 °C (acc. to EN54-16).

cDistortion < 1%, 1 kHz, battery 48V, max. 1 minute, ambient temperature 55 °C.

d Alarm tone level, distortion < 0.3%, 1 kHz, mains or battery (>43.5V), max. 30 minutes, ambient temperature 55 °C.

e Distortion < 0.3%, 1 kHz, mains or battery >43.5V, continuous, ambient temperature 30 °C.

fDistortion < 0.3%, 1 kHz, mains or battery >43.5V, continuous, ambient temperature 55 °C.

Bosch Security Systems 2011-02