Sound and Vibration Instrument Hire and Calibration
Bruel & Kjaer 4205 Sound Power Source
|B&K 4205 : Reference Sound Power Source||£ 25 a day *|
- Substitution method
- Comparison method
- Juxta-position method
- 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.