Gracey & Associates UK Hire

GRAS 12AA

GRAS 12AA

Microphone Power Supply - dual channel

£ 5 a day *

Dual channel, battery operated power supply for GRAS, Norsonic and other compatible preamplifiers with Lemo 1B 7-pin connectors.

♦  Overload indicators ♦  High pass filters ♦  Gain selectable between -20 dB, 0 dB, +20 dB and +40 dB in both channels. ♦  The polarization voltage = 0 V or 200 V. ♦  Frequency response = 4 Hz - 200 kHz or A-weighting. ♦  BNC outputs to analysers, DAT recorders etc. ♦  Mains unit available.

Manufacturer's Specifications


Outdoor Microphone Systems
Ideal for use with GRAS 41AL Outdoor Microphone Systems when the sound level meter to be used does not have Lemo preamplifier inputs and / or polarization voltage supplies.

Sound Intensity
The GRAS 12AA also provides supplies and signal conditioning for the GRAS 50AI Sound Intensity Probe - requires a AA 0011 cable.


* Our standard hire charges are based on a 4-day minimum period. Click here for details and other options.

Gracey & Associates   01933 624212

BSI accreditation for instrument hire and calibration

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