Denon AVR-1400
For awhile now when I first power up my receiver, the right channel won't play.
I have to "crank" up the volume for that channel to kick on. It's almost like blowing out a clogged water line or something. This happens every time
I use it. Any thoughts or suggestions? I have tried 3 different sets of
speaker cable and two sets of speakers. Same results.

Thanks for any help: designrgs