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Gracey & Associates Hire

Norsonic 335 and 336



Nor 335
Nor 335Microphone Power Supply - 8 channels with signal conditioning £ 19 a day *

Microphone and preamplifier power supplies with 200 V and 0 V polarization voltage and signal conditioning - battery operated.

Ideal for use with DAT recorders, a range of analysers and multi-channel applications .

Eight channels with Lemo 1B microphone preamplifier inputs connectors and BNC outputs.

  • Each channel has selectable :-
  • A, C and Flat weightings with or without a high pass filter
  • Gain adjustable from 0 to 40 dB in 10 dB steps, corresponding to a measurement range of 20-140 dB SPL for a 50 mV/Pa microphone.
  • Low phase shift and cross talk between channels
  • Overload indicators.

Manufacturer's Specifications


Order microphones, preamplifiers, accelerometer etc., to suit your application.





Nor 336
Nor 336Microphone Power Supply - 2 channels with signal conditioning £ 6 a day *

Microphone power supplies, preamplifier system, ideal for use with DAT recorders or similar signal conditioning applications.

Dual channel with Lemo type 1B input connectors, selectable polarization voltage and BNC output connectors.

  • Both channels has selectable
  • A, C and Flat weightings with or without HP filter
  • Gain = 0 to 40 dB in 10 dB steps, corresponding to a measurement range of 20-140 dB SPL for a 50 mV/Pa microphone
  • Low phase shift and cross talk between channels
  • Overload indicators
  • Battery powered.

Manufacturer's Specifications


Mechanically compatible with Sony D7 and D8 DAT Recorders
Often used as a stand alone dual channel microphone power supply and signal conditioner, enabling long cables back to the analyser(s).



* Our standard hire charges are based on a 7-day minimum period. Click here for details and other options.

Gracey and Associates   01933 624212
BSI approved for the hire of noise and vibration instruments
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