Sound and Vibration Instrument Hire and Calibration

Bruel & Kjaer 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.

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.