Shorting caps/Cardas protective caps worth the $?


I´m curious about the caps for the rca inputs on my pre-amp. I´ve heard that some pre-amp don´t like having their input shorted. Should the Cardas protective caps give a better sollution?

Can anyone give a objective review on caps?

Thanks,
Mike
rannagarden
I use the cardas on all unused RCA's. I am not sure if the do anything performence-wise, but they sure look clean and even the wife liked them, Not many tweaks that I have done get a WAF bonus.
Michael
RCA covering caps sound like dust preventers at best, however shorting plugs do work (to some degree). On my preamp I noticed on an unused input a buzz at highish levels. I put in shorting plugs and the buzz disappeared. Does that effect the output on other sources? Haven't got a clue but at the cost, what the hell.
Cardas caps and Shorting Plugs do work. Cleaner, better bass, detail and much more natural sounding. If your system is transparent enough these cheap add on tweaks will be worth the money.
I've seen the effect on my scope when testing a piece of equipment. Open RCA jacks pick up RFI very easily.