Tweaks; do they work?


I see all this stuff on the market; spary for CDs, green pens, CD mats, connector enhancer/cleaner, etc.... Does any of this stuff actually lead to a sound improvement, or is it just "monkeyshine"? Please report what has worked for you. Thanks!
stbhorn
I have tried bright star products,i had to send them back.
The best investment you can make is to install a dedicated line.
The cost of a dedicated line will vary quite a bit, depending on how much work is involved, but I recently got a quote of $400 for my basement stereo room. It is a rather straightforward run across an acoustic tile drop ceiling.

Of course, when I started asking about the den, where they would have to cut into drywall and run up through the crawl space, the figures got much higher...
of course it depends from the quality.....
[http://www.arthifi.it/ENG%20accessori.htm]