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Bosch Security Systems | 2003-09 | 3922 988 92883en
Plena Mixer Amplifier | Installation and Operating Manual | en | 21
Music input (Cinch, stereo converted to mono)
Sensitivity 200 mV
Impedance 22 kOhm
S/N (flat at max volume) > 70 dB
S/N (flat at min volume/muted) > 75 dB
Headroom > 25 dB
Emergency / telephone (Screw, balanced)
Sensitivity 100 mV - 1 V adjustable
Impedance > 10 kOhm
VOX threshold 50 mV
attack time 150 ms
release time 2 s
S/N (flat at max volume) > 65 dB
Interconnection (Cinch)
Nominal level 1 V
Impedance > 10 kOhm
6.4 Outputs
Master output 1 (3-pin XLR, balanced)
Nominal level 1 V
Impedance < 100 Ohm
Tape output (Cinch, 2x mono)
Nominal level 350 mV
Impedance 1.5 kOhm
Interconnection (Cinch)
Nominal level 1 V
Impedance < 100 Ohm
Loudspeaker outputs (Screw, floating)
Max/rated output power 70/100 V
LBB1903/10 45 W/30 W
LBB1906/10 90 W/60 W
LBB1912/10, LBB1914/10 180 W/120 W
8 Ohm output
LBB1903/10 16 V (30 W)
LBB1906/10 22 V (60 W)
LBB1912/10, LBB1914/10 31 V (120 W)
Output power @ 24 V battery operation -1 dB ref. rated power
6.5 Environmental conditions
Operating temperature range -10 to +45 °C
Storage temperature range -40 to +70 °C
Relative humidity < 95%
Technical dat a