Data sheet en_us_1853504907
- 1. Communications Systems | LBC 2900/xx Unidirectional Handheld Microphones LBC 2900/xx Unidirectional Handheld Microphones www.boschsecurity.com u Unidirectional dynamic microphone u Handheld or stand-mounted use with clip (supplied) u Rugged construction u Modern non-reflective dark grey finish With this unidirectional microphone, Bosch provides Installation/Configuration Notes impressive audio performance at an economical price. The LBC 2900/xx is based on a dynamic transducer 52,4 element that is designed for high speech intelligibility. Its rugged enclosure is both stylish and easy to use in a wide range of public and sound reinforcement applications. Functions The LBC 2900/xx is a unidirectional microphone 165 intended for either handheld or stand-mounted use. It has excellent cardioid directivity, which reduces acoustic feedback. The built-in on/off switch on the microphone body and the 3‑pin lockable XLR connector at the base ensure that the microphone is easy to install and securely connected. Its modern design gives shielding against bursts (pops). Dimensions in mm The LBC 2900/xx is ideal for use with Bosch mixing amplifiers, which are fitted with jack or XLR connectors for the input channels. Together, they provide affordable yet highly versatile public address solutions for shops, restaurants, leisure centers and other smaller applications.
- 2. 2 | LBC 2900/xx Unidirectional Handheld Microphones Circuit diagram * Technical performance data acc. to IEC 60268-4 Mechanical Dimensions (D x L) 52.4 x 165 mm (2.06 x 6.49 in) Weight 270 g (9.5 oz) Color Dark gray Switch On/off slide Cable length 7 m (23 ft) Connector (/15) 6.3 mm (1/4") stereo jack Frequency response Connector (/20) 3‑pin XLR Environmental Operating temperature -10 °C to +55 °C (+14 °F to +131 °F) Storage temperature -40 °C to +70 °C (-40 °F to +158 °F) Relative humidity <95% Ordering Information LBC 2900/15 Unidirectional Handheld Microphone with 7 m (23 ft) cable XLR female / 6.3 mm (1/4") stereo Jack plug connection cable Order number LBC2900/15 LBC 2900/20 Unidirectional Handheld Microphone with 7 m (23 ft) cable XLR male/ female connection cable Order number LBC2900/20 Accessories LBC 1215/01 Microphone Clamp Polar diagram spring-loaded microphone holder, friction angular Parts Included adjustment Order number LBC1215/01 Quantit Component LBC 1221/01 Floor Stand y Three folding legs, adjustable length with twist clamp. 1 LBC 2900/15 with 7 m (23 ft)shielded black cable Order number LBC1221/01 terminated with a 6.3 mm (1/4”) stereo jack plug or LBC 1227/01 Table Stand LBC 2900/20 with a 7 m (23 ft) shielded black cable with 3/8" Whitworth stud; 130 mm (5.12 in) diameter terminated with an XLR male plug Order number LBC1227/01 1 Stand bracket with push-on clip for use with microphone LBC 1226/01 Adjustable Boom stand, and screw-thread adapter for 3/8", 1/2", or maximum reach of 670 mm (2.12 ft); length 840 mm 5/8“ Whitworth-threaded stand (2.76 ft) Order number LBC1226/01 Technical Specifications Electrical* Type Handheld Polar pattern Unidirectional Frequency range 80 Hz to 12 kHz Sensitivity 1.7 mV/Pa ±3 dB Rated output impedance 600 ohm
- 3. 3 | LBC 2900/xx Unidirectional Handheld Microphones Represented by: Americas: Europe, Middle East, Africa: Asia-Pacific: Bosch Communications Systems Bosch Security Systems B.V. Robert Bosch (SEA) Pte Ltd 12000 Portland Avenue South P.O. Box 80002 11 Bishan Street 21 Burnsville, Minnesota 55337, USA 5600 JB Eindhoven, The Netherlands Singapore 573943 Phone: +1-800-392-3497 Phone: + 31 40 2577 284 Phone: +65 6571 2600 Fax: +1-800-955-6831 Fax: +31 40 2577 330 Fax: +65 6571 2698 audiosupport@us.bosch.com emea.securitysystems@bosch.com apr.securitysystems@bosch.com www.boschsecurity.com www.boschsecurity.com www.boschsecurity.com © Bosch Security Systems 2012 | Data subject to change without notice 1852860555 | en, V1, 16. Apr 2012