Bosch LBB 1920/00 - Mechanical and Environmental Data; Ordering Information

Connector Cinch, unbalanced, 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
Direct outputs 4 x
Connector 3-pin XLR, balanced
Nominal level 1 V
Impedance <100 ohm
Master output 1 x
Connector 3-pin XLR, balanced
Nominal level 1 V
Impedance <100 ohm
Master output 1 x
Connector 5-pin DIN, balanced
Nominal level 4 mV (microphone level)
Impedance <100 ohm
Tape output 1 x
Connector Cinch, 2 x mono
Nominal level 350 mV
Impedance <1 kohm
Headphone output 1 x
Connector 6.3 mm jack stereo, signal mono
Nominal level 3 V
Impedance <100 ohm
Emergency input 1 x
Connector 3-pin XLR, balanced
Sensitivity 200 mV (interconnection), 100 mV
to 1V adjustable (emergency)
Impedance >10 kohm
VOX Threshold 45 mV (emergency)
Interconnection output
Connector 3-pin XLR, balanced
Nominal level 200 mV
Impedance <100 ohm
Relays
Priority Relay Contacts 30 V, 1 A
Emergency Relay Contacts 30 V, 1 A
DC supply output 24 V, 250 mA max
Mechanical
Dimensions (H x W x D) 100 x 430 x 270 mm
(19" wide, 2U high)
Weight Approx. 5 kg
Mounting Standalone, 19” rack
Color Charcoal
Environmental
Operating temperature -10 ºC to +55 ºC (+14 ºF to
+131 ºF)
Storage temperature -40 ºC to +70 ºC (-40 ºF to
+158 ºF)
Relative humidity <95%
Ordering information
LBB 1920/00 Plena Universal Pre-Amplifier
high-performance unit with four mono-input channels.
Order number LBB1920/00
3 | LBB 1920/00 Plena Universal Pre-Amplifier