Yep, like Tireguy I use 'em too. Don't know if they do anything, but they do provide peace of mind and look kinda neat.
Wait a Minute Do those Cardas Caps Work
I do a little tweaking of my own and can justify the application and expense, but my friend actually said that when he put the caps on the unused balanced and unbalanced inputs/ outputs he actually heard a difference. I have Jeff Rowland gear and will it really make a difference because those things aren't cheap ! Your thoughts Audiogoner's