Posted on: 10 May 2001 by Andrew L. Weekes
It's a frustrating problem, that is most prevalent with high level (usually CD) sources.
It's due to the loss in channel matching at very low levels of the volume pot, it may be possible to improve the situation by selecting a better matched pot, but this is a time consuming process.
Attenuating the input will help, but is likely to affect sound.
My 42 and Nait1 suffers the same 'problem',as did my Nait3.
The 112 eliminates this problem entirely, by not using a pot at all.
The higher quality Alps (blue in colour) pots are often better than the cheap carbon track ones fitted to early amps / pre-amps, but still suffer to a certain extent.
Andy.
Andrew L. Weekes
alweekes@audiophile.com