I have a Pioneer Elite VSX-49TX and it has started making a loud popping sound in the front and surround speakers when in THX Cinema mode. Sometimes a pop pop crackle pop and sometimes just a pop. I change to direct mode, and it is fine. This never occurs in direct or in Ultra2 mode. Any clues? Any information that you could ask me to provide prior to me taking this in for repair would be helpful. I am just afraid that I am going to take this in and they won't be able to reproduce the problem or something like that.
It does not appear that it matters what input I am on on the receiver.
Scott

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