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Bosch LBB 1903/10 Installation And Operating Manual page 3

Plena mixer amplifier installation and operating manual

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Table of Contents
Mains power supply
Mic/line input
Connector 3, 4
Sensitivity
Impedance
S/N (flat at max volume)
S/N (flat at min volume/muted) >75 dB
CMRR
Headroom
Speech filter
Phantom power supply
Music input
Connector
Sensitivity
Impedance
S/N (flat at max volume)
S/N (flat at min volume/muted) >75 dB
Headroom
Emergency / telephone
Connector
Sensitivity
Impedance
S/N (flat at max volume)
VOX
Loop through input
Connector
Nominal level
Impedance
Master line output
Connector
Nominal level
Impedance
Tape output
Connector
Nominal level
Impedance
Loop through output
Connector
Nominal level
Impedance
Loudspeaker output
70/100 V
Connector
Power
LBB 1903/10
2 x
3-pin XLR, 6.3 mm phone jack, balanced,
with phantom power
1 mV (mic); 200 mV (line)
>1 kohm (mic); >5 kohm (line)
>63 dB (mic); >70 dB (line)
>40 dB (50 Hz to 20 kHz)
>25 dB
-3 dB at 315 Hz, high-pass, 6 dB/oct
16 V via 1.2 kohm (mic)
1 x
Cinch, stereo converted to mono
200 mV
22 kohm
>70 dB
>25 dB
1 x
Screw terminals
100 mV to 1 V, adjustable
>10 kohm
>65 dB
50 mV threshold ; 150 ms attack time;
2 s release time
1 x
Cinch
1 V
>10 kohm
1 x
3-pin XLR, balanced
1 V
<100 ohm
1 x
Cinch, 2 x mono
350 mV
1.5 kohm
1 x
Cinch
1 V
<100 ohm
Screw, floating
Max / rated
45 / 30 W
LBB 190x/10 and LBB 191x/10 Plena Mixer Amplifiers | 3
Mains power supply
LBB 1906/10
LBB 1912/10, LBB 1914/10
Loudspeaker output 8 ohm
Connector
Power
LBB 1903/10
LBB 1906/10
LBB 1912/10, LBB 1914/10
Power reduction on 24 V
Power consumption
Mains operation max
LBB 1903/10
LBB 1906/10
LBB 1912/10, LBB 1914/10
24 V operation max
LBB 1903/10
LBB 1906/10
LBB 1912/10, LBB 1914/10
Mechanical
Dimensions (H x W x D)
Weight
LBB 1903/10
LBB 1906/10
LBB 1912/10, LBB 1914/10
Mounting
Color
Environmental
Operating temperature
Storage temperature
Relative humidity
Acoustic noise level of fan
90 / 60 W
180 / 120 W
Screw, floating
16 V (30 W)
22 V (60 W)
31 V (120 W)
1 dB
100 VA
200 VA
400 VA
1.6 A
3 A
6 A
100 x 430 x 270 mm
(19" wide, 2U high)
Approx. 5 kg
Approx. 8.5 kg
Approx. 10.5 kg
Standalone, 19" rack
Charcoal
-10 ºC to +45 ºC (+14 ºF to +113 ºF)
-40 ºC to +70 ºC (-40 ºF to +158 ºF)
<95%
<48 dB SPL at 1 m (max output)
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