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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
kijanki's avatar
kijanki
4,474 posts
 
Staccato effect?  Sure, for people who can hear tiny change in few nanoseconds between supports  (hundreds of MHz). 
Let's assume that somebody can hear the difference.  To me it doesn't matter if this difference is real or it is only a placebo effect.  Outcome is the same.
djones51
4,947 posts
 
Yes, true placebos do work.
rodman99999
6,206 posts
 
With AC; electrons don't drift at all.     They oscillate over a distance of a few micrometers (.0000001 Meter = micrometer), without movement along the conductor.        
djones51
4,947 posts
 
I have no idea what wiki says on electricity. Try here instead.
http://hyperphysics.phy-astr.gsu.edu/hbase/emcon.html#emcon
djones51
4,947 posts
 
In a copper wire 12mm electrons will drift about 2.33 cm an hour
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