Technical Data; Electrical; Performance; Inputs - Bosch LBB 1920 Installation And Operating Manual

Plena Universal Pre-amplifier | Installation and Operating Manual |
6

Technical data

6. 1 Electrical

Mains voltage
Max mains power consumption
Battery voltage
Max battery current

6.2 Performance

Frequency response
Distortion
Bass control
Treble control
Line separation at 1 kHz
Priority mute

6.3 Inputs

Mic/Line inputs 1-4 (3-pin XLR/5-pin DIN, balanced)
Sensitivity
Impedance
S/N (flat at max volume)
S/N (flat at min volume/muted)
CMRR
Headroom
Speech filter
Phantom power supply
Line inputs 1-4 (Cinch, unbalanced, stereo converted to mono)
Sensitivity
Impedance
S/N (flat at max volume)
S/N (flat at min volume/muted)
Headroom
Bosch Security Systems | 2003-09 | 3922 988 99482en
Technical data
230/115 Vac, ±15 %, 50/60 Hz
25 VA
24 Vdc, +20 %/-10 %
1A
50 Hz - 20 kHz (+1/-3 dB)
<0.5 %
±10 dB at 100 Hz
±10 dB at 10 kHz
>70 dB
>40 dB
1 mV (microphone), 200 mV (line)
>1 kOhm (microphone), >5 kOhm (line)
>63 dB (microphone), >70 dB (line)
>75 dB
>40 dB (50 Hz - 20 kHz)
>25 dB
-3 dB at 315 Hz, high-pass, 6 dB/oct
16 V via 1.2 kOhm, in microphone mode only
200 mV
22 kOhm
>70 dB
>75 dB
>25 dB
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