XLR & RCA caps

Agree as well. I use Cardas rca and xlr caps. Can't say I hear a difference but like the fact that dust does not get in these openings of my pre and cdp. This is a tweak to buy when you are in the mood to tweak, don't want to spend alot or be disappointed if the tweak does not improve your sound.

I have the cardas caps on rca females on my pre-amps; no change in sound I can detect

Same for me. I have some rubber Neutrik ones I threw in to make up an elecronics order.

That being said, if I could see them from the front, I might go for something expensive.

After reading the responses, I'm going to look into these caps. Elizabeths comments on how the video images improved goes great lengths to show that though our ears may play tricks on us, our "lying eyes" can discern things more easily and is repeatable.

If video images improve with these, then there has to be something going on with these RCA inputs acting as conduits, of sorts, to some kind of interference which play havoc with the sound.

All the best,
Nonois

Thanks guys, i also bought a bag of 1000 rubber white rca caps from a "seller in Taiwan" and i just picked up really nice rubber XLR cover from Neutrik like Riffer did. they were about $0.50 each. a far cry form 30.00 per pair for audioquest. Also i agree with riffer, these plugs are on the back, if they were visible then i'd look for something like the Cardas. But since the idea is to cover, and rubber is non conductive i don't see how they can be better or worse than Cardas or Audioquest.
When i get everything covered i'll post a pic and let everyone know my findings.