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A Couple Little Things I'm Wondering About

Two quick questions for anyone with any experience with either topic.

1. Why do some folks with usually higher end systems use those cable lifters to keep the cable elevated? What are they intended to do? If you use them, what do they do for you please? And if you know do they make sense from a purely technical standpoint? 

2. I bought a bunch of those gold plated caps to cover all the unused RCA jacks on the back of my AVR. I believe they are intended to keep noise down. If you use these, please comment on them. Do you think they do what they're supposed to do, and/or do they make sense from a purely technical standpoint?

Thanks!
jcolespeedway
Post removed 
tuberculin
86 posts
 
glupson,
I used them on a C-J PV6 and I did not notice a difference. My current pre-amp is relay controlled shunting the open inputs so I don’t need them.
glupson
7,842 posts
 
tuberculin,

I use silicon (I think they are silicon) covers for pretty much anything I could find them for. No dust enymore. Of course, the question is why should I care about dust in the connectors I am not using. It just makes me feel good knowing things are clean.

I never bothered to check what happened to the sound. If anything,
cakyol's avatar
cakyol
940 posts
 
@unreceiveddogma +1

LOL
fleschler
2,015 posts
 
@djones  I tried taping my speaker cables 5' high to the rear wood wall.  The result was brighter and thinner sound.  Yuk!   I tested various cable lifters and no lifters.  There were marked differences, between 3% and 10% difference estimated.   I preferred the low cost half vibration dampening half "rubber" balls.  It's as if there was no effect, certainly not negative and about 5% better than cables lying on the very thick, dense nylon carpet.  Not monumental, but appreciable difference for maybe $50.
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