My Cardas IC's are getting old and beginning to fail. One of the IC's that connects the pre-amp to the amp quits once in a while. I'll notice one channel has dropped out, so I get up and give the IC a bit of a touch at the connection point and the connection is restored. I'm guessing it is the "hot" wire and not the ground shield because there is no loud hum when it happens, just loss of signal. It's not a big deal for me to get up once in a while and jiggle the wire (I could use the exercise) I"m just wonder if continuing to use this faulty IC is degrading the sound. All my IC's are Cardas that the seller gave me when I bought his McIntosh system, and I'll bet they are 15 to 20 years old. I think it's time to open up the wallet and get something new and without failures. Is this a no brainer?