Bosch LBB1950 User Manual

Communication Systems | LBB 1950/10 Plena Table-Top Uni-Directional Condeser Microphone

LBB 1950/10 Plena Table-Top Uni­Directional Condeser Microphone

Stylish table-top uni-directional condenser

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microphone on a flexible stem
Phantom powered by amplifier

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Momentary or toggle PTT-key for calls, with priority

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contact
Green LED, indicating microphone active

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Stable metal base design with fixed 2 m cable and

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lockable DIN connector
Separate DIN to XLR adapter.

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The Plena table-top microphone is a stylish, high-quality
table-top unidirectional condenser microphone, mainly
intended for making calls in a PA system. Its heavy metal
base and rubber feet ensure a stable position on any flat
surface. The special design also allows the unit to be
neatly flush-mounted in desk tops.

Functions

The microphone is powered by the phantom power
supply of the amplifier to which it is connected.
Its PTT (Press-To-Talk)-key not only switches on the
microphone but also provides priority contacts,
matching the Plena range of amplifiers. The switching
characteristic of the PTT-key can be selected internally
between momentary (on as long as pressed) and toggle
(press to switch on, press again to switch off).
It is equipped with a fixed, flexible 2 m cable and a 5-pin
DIN connector for the balanced signal and the priority
contacts. If the priority contact is not required, the
microphone can be connected to amplifiers with 3-pin
XLR-inputs, using the DIN to XLR adapter.
A green LED indicates that the microphone is active
when the PTT-key is pressed.

Certifications and Approvals

EMC emission acc. to EN 55103-1
EMC immunity acc. to EN 55103-2

Parts Included

Quantity Component
1 LBB 1950/10 PLENA Table-top Microphone
1 DIN to XLR adapter

www.boschsecurity.com

2 | LBB 1950/10 Plena Table-Top Uni-Directional Condeser Microphone

Technical Specifications

Electrical

Phantom Power Supply
Voltage Range 12 – 48 V
Current Consumption <8 mA
Performance
Sensitivity 0.7 mV @ 85dB SPL

Maximum Input Sound Level 110 dB SPL
Distortion <0.6% (maximum input)
Equivalent Input Noise Level 28 dB SPLA (i.e. S/N 66 dBA ref. 1 Pa)
Frequency Response 100 Hz – 16 kHz
Output impedance 200 ohm

Environmental

Operating Temperature -10°C to +55°C
Storage Temperature -40°C to +70°C
Relative Humidity <95%
Dimensions
Base 40 x 100 x 235 mm

Stem Length with Microphone 390 mm (15.35 inch)
Cable Length 2 m (78.75 inch)
Weight approx. 1 kg

(i.e. 2 mV / Pa)

(1.57 x 3.97 x 9.25 inch)

Ordering Information

Model | Description
LBB 1950/10 Plena Table-Top Uni-Directional Condeser Microphone
Hardware Accessories
LBC 1102/02 Cable Transformer

for galvanic separation

LBC 1208/40 Microphone Cable

three-pole XLR; 10 m

LBC 1080/00 Microphone Cable

Length 100 m; 2 x 0.13 mm

LBC 1082/00 Microphone Cable

Length 100 m; 2 x 0.75 mm

LBC 1081/00 Microphone Cable

Length 100 m; 4 x 0.14 mm

Americas:
Bosch Security Systems
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.us

2

2

2

Europe, Middle East, Africa:
Bosch Security Systems B.V.
P.O. Box 80002
5600 JB Eindhoven, The Netherlands
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

Asia-Pacific:
Bosch Security Systems Pte Ltd
38C Jalan Pemimpin
Singapore 577180
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

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© Bosch Security Systems, 2005 | Data subject to change without notice | 12. Dec. 2005