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Sound and Vibration Instrument Hire and Calibration

Bruel & Kjaer 4205 Sound Power Source

B&K 4205 Sound Power Source
B&K 4205 : Reference Sound Power Source £ 25 a day *

Battery operated reference Sound Power Source for use in A-weighted and Octave Band sound power measurements using any of the following techniques:

Sound Power Methods
Substitution method
Comparison method
Juxta-position method
Sound power level measurements
40 dB to 100 dB in 7 octave bands from 125 Hz upwards and
White or Pink Noise - 100 Hz to 10 kHz.

Manufacturer's Specifications

For much 'louder' sound sources - up to 122 dB SWL see the Nor 250 & 260/280 speaker/amplifier systems.

If you need a suitable sound level meter - click here.

* Our standard hire charges are based on a 4-day minimum period, details other options.