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Bruel & kjaer 4224 sound source acoustics measurement
Bruel & Kjaer 4224 Sound Source Acoustics Measurement
The Sound Source Type 4224 is specifically designed for building acoustics measurements such as sound reduction index, facade insulation, reverberation time and absorption. The Type 4224 consists of a loudspeaker with built-in power amplifier and noise generator contained in a robust, moulded cabinet with an integral handle. It can deliver up to 115dB sound power level from 100Hz to 4 kHz when driven from its
internal, rechargeable batteries or up to 118dB sound power level when driven from a mains supply.
* Building acoustics measurements such as sound reduction index, facade insulation, reverberation time and absorption
* Sound insulation measurements according to
Simple Test Method of ASTM E597-77T
Features: 115dB sound power (battery driven) or 118dB
(mains driven) in the range 100 Hz to 4 kHz
* Protective Cover for the Amplifier and Diffuser
* Portable carry case for easy transportation
Unit Powered up and sound could be heard.No further testing was done.Guarnteed against DOA.
Link to information: /doc/Bp0066.pdf
