come on dudes, you must have a fav, it's not all foo and boo ya know, something you've done surely you liked? let me know. don't be shy, there's no bully boys here.

In the weird world of the analogue LP the most significant tweak anyone can make ( apart from selling the wife, kids, house and car and buying a silly money LP rig) is to invest in a vacuum/liquid LP cleaning machine.
Next best tweak belongs on the acoustics section of this forum - this is the treatment, or design from scratch, of your listening room. This is the tweak that is often the last resort as it triggers threats of divorce from all those tedious 'she who must be obeyed' creatures.
There's a new kind of tweak starting to become available I'm all in favor of. Musical Fidelity now has an up-date/ modification service for all it's older models.
http://www.musicalfidelity.com/tuning-information.asp I wish more audio manufacturers would offer a similar service. Maybe they're afraid such an offering would cut into their new equipment sales?

http://www.6moons.com/audioreviews/francktchang/resonators.html

Look at these, are they for real, come on? is this serious?

If these kinds of things were cheap then maybe more would be inclined to try them, but when astronomical prices are charged it's just plain silly, in the end we just give our personal opinion without having the chance to even try because of the price, but looking at those I'd think i'd pass as the right honourable gentleman says so rightly above.

MY FAVOURITE TWEAK COSTS NOTHING , and actually can save you spending zillions of pounds needlessly........in my not so humble opinion o course........
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EASY......NEVER EVER NOT NEVER .BUY ANYTHING FROM RUSS ANDREWS !!!!!

TA DAH !

snake oil bachman pure snak oil !
imo

I agree, the cash would be better spent on therapy ! I'm off to put some ashtrays with lit cigars on my speakers and insert a bottle of vintage malt in my toilet cistern!! Ahhh, that's better, audio nirvanha finally located !!

I'd imagine if you had lot's of them they'd act as some kind of Helmholtz resonator, but they look too small to have any meaningful effect, I'm sure they most do something be it positive or negative by the fact that they resonate.

Well, in an extreme case, if one was to cover the entire walls of the listening room with these things, there could be an audible difference,

But I suspect, with little metal cups everywhere, high frequency reflections will go wild.

An interesting experiment for a science project but ... for listening to music, I'll choose simpler ways.

you've got to admire them for the courage to try to put the product or idea to market, peter belt anyone?