#Bosch, #microphones
New highly sensitive microphones from Bosch for sound and notification systems.
The line of devices for sound control and notification systems from Bosch includes new wired condenser and dynamic microphones, which can also be used in systems for voicing advertisements in shopping centers, broadcasting speeches at conferences and in various vocal applications.
The new microphones operate in the frequency range from 80 Hz to 16 kHz, have a sensitivity of 0.7 — 2 mV/Pa, a remote control switch and provide realistic transmission of speech and musical instruments.
In terms of technical parameters, they are compatible with the Plena sound management system and the Bosch Praesideo digital notification system, as well as with sound amplification equipment from various manufacturers.
The high quality of the generated audio signal and the relatively low price allow the use of Bosch microphones in most sound reinforcement systems.
For the transmission of speech and advertising information messages in warning and evacuation systems, desktop microphones on a curved stand («gooseneck») are recommended, for example, LBB1949/00 or LBB9082/00.
These models are small in size and are installed for the convenience of the operator directly on the desktop.
In addition, their stand is equipped with an adapter, with which the microphone can be placed on a podium or fixed to a floor stand, as well as a remote switching switch.
For transmitting short or emergency announcements, it is recommended to use the omnidirectional dynamic model LBB9080/00.
It should be noted that all Bosch microphones for voice notification and evacuation systems are equipped with 5-pin DIN connectors, which ensure their forced disconnection when a signal is received from a device with a higher priority.
For amplification and transmission of «live» speech at conferences, entertainment events, in shops, restaurants, etc., you can use dynamic microphones, for example, LBB9099/10.
This handheld model with a cardioid polar pattern provides high-quality sound transmission, speech intelligibility, suppression of «breathing» and air «pops» and has a low cost compared to analogues.
It is equipped with a slide switch with two isolated contacts for its remote switching together with another sound source.
Therefore, background music or a sound signal preceding announcements can be started before the microphone is switched on.
For the Plena sound management system, Bosch specialists offer the LBB 1950/10 tabletop condenser microphone on a curved stand, which is designed for transmitting voice messages.
The unit has a heavy metal base with a rubber coating for stability on any surface, an LED activity indicator and an activation button that does not need to be held down while making an announcement.
The microphones operate from the amplifier's power supply and are supplied with a 5-pin DIN priority switch connector, but can also be connected to the amplifier via a 3-pin XLR connector using a DIN/XLR adapter.
Highly sensitive microphones from Bosch are used for professional sound control systems, as they stand out for their balanced frequency characteristics and provide realistic voice transmission.
One of the representatives of this series is the LBB9600/20 condenser microphone.
It has a narrow polar pattern, high sensitivity and an operating frequency range from 100 Hz to 16 kHz.
Thanks to this, the LBB9600/20 accurately transmits any timbre and volume of voice, even a whisper, suppressing unnecessary noise and air «pops».
In addition, its design reduces the likelihood of feedback between the microphone and the speaker, which can manifest itself, for example, in the form of «whistling».
The budget line of the LBC 2900/xx Bosch series (LBC 2900/15, LBC 2900/20) is designed for sound reinforcement systems in small rooms and includes unidirectional microphones that are based on a dynamic transducer element and have high-quality sound characteristics and a low price.
The cardioid polar pattern of these models reduces the occurrence of acoustic feedback and protects them from interference.
In addition, each microphone provides high speech intelligibility, is protected from air strikes («slams») and wind, and has a durable and stylish housing. LBC 2900/xx are designed for handheld use or installation on a floor stand, and are compatible with Bosch or other manufacturers' mixing amplifiers.
Dynamic models, which are characterized by resistance to overload, can be used to record percussion instruments and amplify speech at any volume.
Condenser microphones are more suitable for acoustic instruments and vocals, as they transmit any voice timbre and operate in a wider frequency range.
In addition, most models are unidirectional with a cardioid sound pickup pattern, so they eliminate the negative impact of room acoustics and reduce noise.
The German company Bosch Security Systems has been operating on the market since 2001 and today is one of the world's leading manufacturers of equipment for video surveillance systems, access control, fire and security alarms, voice notification of fire, congress systems, including microphones, amplifiers and loudspeakers.
Since 2002, the company has been constantly expanding its network of representative offices and today has more than 40 branches around the world.
The global Bosch manufacturing alliance includes plants in Germany, the Netherlands, Portugal, the USA and China.
The company annually increases its revenues due to an increase in volumes production and distribution of systems, as well as their consolidation.