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Old 06-20-2013, 08:52 PM
Richi Richi is offline
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Join Date: May 2004
Posts: 545
They chose an odd scale for this unit, it looks more like a digital scale with 0dBFS being the top. Most analogue VU meters will go beyond 0dB, so not sure what this unit is doing.

The normal procedure for calibrating a meter is to use a reference voltage, the reference would usually be a tone of say 1khz and with a voltage of 0.775v. You would then measure the voltage at the output and trim the VU meter accordingly.
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