In , on 01/05/04
at 10:08 AM, "John A. Weeks III" said:

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?

Perhaps you live in a world where you can have a pile of Krell in
every corner of every room of your mansion. But please make room in
the hobby for other folks, espeically those who have entry level
equipment pending making thier fortune in the world.

I started by "fussing" with things. I had a very limited budget and
could not afford to burn anything up. While I was successful in not
burning anything up, didn't make any stunning advances in the science
of hifi, I learned a lot.

To Mitchell,

Power supply capacitor mods can often improve things, but you should
read about power supply design before jumping into things. Yes,
increasing the size of the power supply filter capacitors might improve
things, but making them too large may introduce a rectifier failure
problem that will catch you by surprise.

Capacitor mods in the signal path will probably yield more noticeable
results, but they may present physical challenges because the better
sounding capacitors are usually larger than the ones they replace.

I doubt if you will be able to find someone who has a collection of
modifications for your unit. There are thousands of models on the
market. One could argue that most of them could be improved in some way
if enough time and money were invested in the effort.

Certain models have acquired a cult status and both underground and
commercial "mods" are available. In some cases the units are better off
after the mods are removed. Some of the mods improve the sound at the
expense of reliability. A home brew unreliable unit will loving be
branded "cranky", but an unreliable commercial unit is a disaster for
everyone.

Read, have fun and learn. It's the tinkerers who ultimately advance the
science.

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