Hiss noise from speakers

I think this is a very common thing. I can't think of a rig I've assembled in which this "hiss" didn't exist at some level. The degree varies from preamp to preamp. It was a big problem with an Exposure preamp I had, which was a really great preamp in spite of it. I was told that a common method to reduce it is to place caps on un-used RCA inputs. I just decided to quit worrying about it instead.

Air leak-have your speakers sealed.

All electronics have some noise. If you have to put your ear to the tweeter that is normal with the volume turned up or a tube piece.

Don't put your ear up to the tweeter.

"Doctor, It hurts when I do this."
"Don't do that"

Thanks for all of the responses. I went to my dealer and listened to Classe & Krell - both of which exhibited some noise fromt he tweeters of B&W 803. I suppose I willjust live with this - not a big deal since I can't hear from my listening position.