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RCA Caps

Is anyone using RCA caps (plugs) on their unused audio connectors?

I'm considering going with either Telos or Cardas.

I like the idea of keeping dust out of these while benefitting from EFI/RFI rejection.
agiaccio
lalitk's avatar
lalitk
5,450 posts
 
I have had better results with Telos Gold RCA caps over Cardas. In A/B comparison, Telos caps further lowered the noise floor.  

May be I should try RCA shortening caps next....

Please note, I have taken great care of lowering noise floor and cleaning up AC signal in my dedicated room by deploying the Nordost QRT system. Our homes incoming AC aren't as quiet as we'd like to believe 😉
bdp24's avatar
bdp24
9,788 posts
 
As long as you're going to put caps of some sort on your unused RCA inputs, might as well make them shorting caps. Why spend more for non-shorting Cardas' than for cheaper true-shorting caps? Seems obvious to me, a no-brainer if there ever was one!
geoffkait's avatar
geoffkait
23,365 posts
 
No brainer. Good one! By the way, if memory serves putting Cardas caps on unused inputs/outputs on the TV and other non-audio components like the cable box helped the sound, too. I’ve got something similar. You know, keeps the dust out. 😬I know what you're thinking. "We want things that make good engineering and scientific sense." 😛

georgehifi's avatar
georgehifi
10,312 posts
 
if memory serves
Gave yourself an out there sunshine.

Cardas caps on unused inputs/outputs on the TV and other non-audio components like the cable box helped the sound, too.
Bollocks!!! is this more voodoo from your leader/maker David Miscavige

Cheers george
bdp24's avatar
bdp24
9,788 posts
 

What ever works. But I'll wager than if non-shorting caps are beneficial, shorting caps will be even more so. In this case, the "why" is no mystery.

Speaking of shorting caps and understanding them, here's a story Bill Johnson told at an instore appearance I attended in the 80's: ARC sent Harry Pearson their new SP-10 pre-amp for review, and shortly thereafter received a call from Pearson, who told Johnson there was something wrong with the pre. Bill, in an attempt to diagnose the problem over the phone, asked Harry some questions, and soon had his answer; Pearson had installed shorting plugs in the pre-amp's unused output RCA's. Well duh!

J. Gordon Holt evaluated the sound of components, be he also understood how they worked, having a technical electronic education. Pearson may have had a good ear, but was completely ignorant, technically. Having both is not a bad idea; it's a great b*llsh*t filter.

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