Hello,
I have an Audio Precision Portable One Plus that seems to have developed a strange issue. At certain frequencies and levels, the distortion measurement reads 0.0000%. I know that the residual THD of the device is about .0015% from doing loopback measurements. It also passes its own self-test.
Can anyone enlighten me as to what this issue is, and how I can go about solving it?
I have an Audio Precision Portable One Plus that seems to have developed a strange issue. At certain frequencies and levels, the distortion measurement reads 0.0000%. I know that the residual THD of the device is about .0015% from doing loopback measurements. It also passes its own self-test.
Can anyone enlighten me as to what this issue is, and how I can go about solving it?
A fault in the measurement amplifier section ?
The Dual Domain version in the analogue section residual THD has a spec of = 0.0025 % across 15Hz to 20kHz (80kHz bandwidth ) .
The Portable One /Plus etc was discontinued in 2010 (PIPA ) --P1 version discontinued in 1997 -- support status =unsupported
system two =unsupported 2016 .
As far as I know D.Self has /had an expensive Audio Precision Analyzer .
It seems its still available on upmarket "second user " company websites.
The Dual Domain version in the analogue section residual THD has a spec of = 0.0025 % across 15Hz to 20kHz (80kHz bandwidth ) .
The Portable One /Plus etc was discontinued in 2010 (PIPA ) --P1 version discontinued in 1997 -- support status =unsupported
system two =unsupported 2016 .
As far as I know D.Self has /had an expensive Audio Precision Analyzer .
It seems its still available on upmarket "second user " company websites.
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