Bosch LBB1950/10 – High Quality Unidirectional Tabletop Condenser Microphone The LBB1950/10 Plena tabletop microphone is a stylish, high quality tabletop unidirectional condenser microphone, mainly intended for making calls in a public address system. Its heavy metal base and rubber feet ensure stability on any flat surface. The special design also allows the unit to be neatly flush-mounted in desktops. Functions: The PTT-key (press-to-talk), not only switches on the microphone, but also provides priority contacts, that are compatible with the Plena range of amplifiers. The switching characteristic of the PTT-key can be configured internally for PTT-mode (on as long as pressed) or toggle-mode (press to switch on, press again to switch off). The microphone 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 contacts are not required, the microphone can be connected to amplifiers with 3‑pin XLR-inputs, using the DIN to XLR adapter. A green LED indicates when the microphone is active. Controls and indicators • PTT-key • PTT status LED Maximum acoustic input level (dB SPL) 110 dB SPL Nominal impedance (Ω) 200 Ω Specifications: Phantom power supply Voltage range 12 to 48 V Current consumption <8 mA Performance Sensitivity 0.7 mV @ 85 dB SPL (2 mV/Pa) Maximum input sound level 110 dB SPL Distortion <0.6% (maximum input) Input noise level (equiv.) 28 dB SPLA (S/N 66 dBA ref. 1 Pa) Frequency response 100 Hz to 16 kHz Output impedance 200 ohm Mechanical Base dimensions (H x W x D) 40 x 100 x 235 mm (1.57 x 3.97 x 9.25 in) Weight Approx. 1 kg (2.2 lb) Color Charcoal with silver Stem length with mic 390 mm (15.35 in) Cable length 2 m (6.56 ft) Environmental Operating temperature -10 ºC to 55 ºC (14 ºF to 131 ºF) Storage and transport temperature 40 ºC to 70 ºC (-40 ºF to 158 ºF) Relative humidity <95%
