Some major movement forward, up to now I've
given the gear the benefit of the doubt, and just hooked it up to the
mains in a very conventional way - but the tonality issues were now
getting too strident ... the prime culprit turns out to be the CDP, by
virtue of the highly inadequate isolating of mains noise junk from
causing cross-interference - extremely typical of usual audio. I use
very simple, zero cost or close to it techniques for troubleshooting -
the simple exercise of setting up a dedicated mains spur for the CDP
alone with some token mains filtering pinpointed the cause of this
quality aspect. This now gives me very good solo piano tone, capable of
being run at realistic levels, which sounds pretty good directly in
front of the speakers as well as the other end of the house, and outside
- vastly better to listen to than the typical ambitious, expensive
audiophile rig, :-P .
But interestingly, I seem to have a bit of a noise issue - never
experienced this before as being so noticeable. This is classic,
resistor thermal noise hiss - not the recording, a digital album still
shows the problem. I wonder if this is because all of the NAD circuitry
is discrete - yet more investigation needed !
No comments:
Post a Comment