Carver Raven 350 Amps

erichgs,

I have moved my jumper and output settings on my DEQX premate to its highest output settings and still no hum. 
I can't tell you how satisfying it is to have discovered the source of the hiss. It was amazing that I missed something so obvious for a week.

smokenjo,

They can be purchased from  many places. I bought mine off of EBay from a guy located in Michigan, they are of  very high quality and with fast delivery. Now remember these are caps not shorting plugs. I have used them on all of my unused rca and xlr input/output throughout my system.

ozzy 

what is the diff.  between a RCA cap and  RCA shorting plug

The shorting plug shorts the signal to the ground where the cap just covers and protects from the elements.

Actually the caps do help to keep stray RF/EMI out of the signal path.

ozzy

There are shorting plugs that accomplish both.