Bosch LBB 1903/10 Installation And Operating Manual page 2

2 | LBB 190x/10 and LBB 191x/10 Plena Mixer Amplifiers
Controls and indicators
Front
•
LED power meter
•
Power on LED
•
Master volume control knob
•
Four volume control knobs for mic inputs
•
Three knobs for BGM volume, treble, and bass levels
•
BGM source selection knob
•
On/off switch
•
Two zone selection buttons (LBB1914/10 only)
Back
•
EMG input volume control
•
Two mic/line switches
•
Chime on/off switch
•
Mains voltage switch
Interconnections
Front
•
Headphone jack
Back
•
Priority mic input (DIN/6.3 mm jack)
•
Mic input (XLR/6.3 mm jack)
•
Two mic/line inputs (XLR/6.3 mm jack)
•
Three audio inputs (2 x cinch)
•
EMG input (screw)
•
Line output (XLR)
•
Tape output (2 x cinch)
•
Insertion input/output (2 x cinch)
•
24 VDC input
•
Three (five for the LBB 1914/10) loudspeaker outputs
(screw)
Certifications and Approvals
Region Certification
Europe CE Declaration of Conformity
Safety acc. to EN 60065
Immunity acc. to EN 55103-2
Emission acc. to EN 55103-1
Installation/Configuration Notes
LBB 190x/10 and LBB 191x/10 rear view
Parts Included
Quantity Components
1 LBB 190x/10 Plena Mixer Amplifier
or
LBB 191x/10 Plena Mixer Amplifier
1 Power cord
1 Set of 19" mounting brackets
1 Installation and User Instructions
Technical Specifications
Electrical
Mains power supply
Voltage
Inrush current
LBB 1903/10
LBB 1906/10
LBB 1912/10, LBB 1914/10
Battery power supply
Voltage
Current
LBB 1903/10
LBB 1906/10
LBB 1912/10, LBB 1914/10
Performance
Frequency response
Distortion
Bass control
Treble control
Dynamic range
Mic input
Connector 1
Connector 2
Sensitivity
Impedance
S/N (flat at max volume)
S/N (flat at min volume/muted) >75 dB
CMRR
Headroom
Speech filter
Phantom power supply
VOX (input 1 only)
230/115 VAC, ±10%, 50/60 Hz
4.5 / 9 A (230 / 115 VAC)
5 A / 10 A (230 / 115 VAC)
8 / 16 A (230 / 115 VAC)
24 VDC, +15% / -15%
1.6 A
3 A
6 A
50 Hz to 20 kHz (+1 / -3 dB at -10 dB ref.
rated output)
<1% at rated output power, 1 kHz
-8 / +8 dB at 100 Hz
-8 / +8 dB at 10 kHz
100 dB
2 x
5-pin DIN, 6.3 mm phone jack, balanced,
with phantom power
3-pin XLR, 6.3 mm phone jack, balanced,
with phantom power
1 mV
>1 kohm
63 dB
>40 dB (50Hz-20kHz)
>25 dB
-3 dB at 315 Hz, high-pass,
6 dB/oct
16 V via 1.2 kohm
attack time 150 ms; release time 2 s