Thoughts on Cardas RCA Caps

Those caps are dust covers. You should get shorting plugs to block EMI/RFI interference!

https://www.amazon.com/s?k=rca+shorting+plugs&adgrpid=1346902310828463&hvadid=84181465691298&hvbmt=be&hvdev=c&hvlocphy=101285&hvnetw=o&hvqmt=e&hvtargid=kwd-84181744529258%3Aloc-190&hydadcr=18888_10519473&msclkid=adf698a5538a1dc31123fe7cda159bd8&tag=mh0b-20&ref=pd_sl_4ydw9cmecg_e

More information about shorting plugs!

https://www.bing.com/videos/riverview/relatedvideo?&q=what+are+shorting+plugs+do&qpvt=what+are+shorting+plugs+do&mid=798F284A8190233C07B0798F284A8190233C07B0&&FORM=VRDGAR

I have a Pathos Classic One MkIII also and would be interested in your results.

Been there done that and zero benefits other fancy covers for your unused RCA’s

Need to use the shorting plugs that @yogiboy posted. You will notice a difference with shorting plugs. 

If shorting plugs help that doesn't speak well for your amp (inter-input leakage).  I use dust caps to keep unused inputs looking new.

Jerry

I have those caps....they do absolutely nothing

@yogiboy - Thanks for the video link.  Shorting plugs are one way to block EMI/RFI, but I suspect that the Cardas plugs are designed more as a shield rather than a drain.  The video was probably enough to talk me off the purchase ledge as I respect that Paul will tell you things that he cannot hear and this seems to fit into that category.

@dill - I think I'll defer to you to give this a try.  How do you like your Pathos?  I absolutely love mine.

I use them, but haven’t really heard any difference. I use shorting plugs on my vintage gear on unused phono inputs. I regard both items as more of a preventative measure, rather than an actual sound tweak. My 2 cents worth.

I am with you on that mceljo! It is the best sounding amp I have ever had in my system and I was in the business. My main source uses the balanced input. Done lots of tube rolling and experiments with cables too. To me, the best sounding input tubes are Valvo CCa but only run them sparing and the Ampex P.Q. 6922’s are my daily driver, the Matsusmita 7DJ8/PCC88’s are no slouch either. I also use solid silver interconnects, speaker cable & power cords.

If you don't have an EMI/RFI problem, exactly what is it you're trying to fix?  Otherwise, just fancy dust covers.  But they do look nice.

I'm using a dozen for dust covers, no sonic benefit here. 

N