RCA or XLR iInput Shorting Plugs or Pins

Guess I was being too harsh :-(. I still question Cardas’ motives, however. George, why not do the soldering necessary to make the plugs shorting, so they provide a sonic benefit? The user will need to know not to insert them in output jacks, though. Perhaps there is a concern over potential pre-amp damage claims.

Those Cardas RCA jack covers are just cosmetic---if the plugs aren’t shorting, they do nothing except keep dust off the RCA’s. Why does Cardas (and others) offer such a useless, ineffective product, if not to simply make money off vain, insecure audiophiles? I found genuine RCA shorting jacks on ebay, about a buck apiece. Anyone with a soldering gun can make his own, of course. The cheapest RCA plugs available are fine---no audiophile version necessary ;-). I’ve never seen an XLR version, however.