RCA Caps

They keep dust out,which is a good thing. As Garebare stated,haven't heard any difference in sound.I wouldn't spend a ton of money on them(I paid around 50 cents per piece).I'm sure someone will disagree and that's fine by me.

Whether or not input shorting plugs make a difference will depend on the design of the preamp circuit involved. It is possible that a few models could pick up some noise though an un-shorted input and pass it to the input in use.

However, I'd think that a fairly rare situation and, to me, would indicate poor design choices for that one issue. It should not make a sonic difference with most equipment.

I've been thinking about them for a Steelhead, but then, that's a LOT of unused RCA's, and a lot of sensitivity. I think the money's better spent on tube dampers or audiophile-grade fuses, though.

Thanks for the replies gents, i dont use them at present, but only use 1 input on my Asr, so considered them but maybe ill stop fiddling for a while and buy a cd instead.

Regards,
Ps