Has anybody tried covering unused rca jacks on their preamp or a/v receiver with Cardas Caps? Another snake oil remedy or sonically worthwhile? Thanks, Ed
Mine lowered the volume of a slight buzz in my system, but didn't completely get rid of it. It does buy peace of mind however, knowing that a hum is not due to open rca jacks is helpful.
Installed the caps in my LS7 and did not notice a difference. The above statements are true however as to system dependency. The caps are well made and provide a tight fit.
I also use them and although no real sound improvement noticed, they are useful to cover unused RCAs on preamp so when changing ICs behind equipment rack you can easily see which RCA pair to use for new ICs. Very helpful visual aid!
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