Finally, I have the chance t o test the system that the previous owner left over in the ht room.

One weird problem, when connected the 7.1 speakers, the front L and R sound came out from the surround back speakers. I have switch the speakers connection and run the sound test and the sound are correctly coming out from the correct place.

However, when playing the dvd (tested a few), the front sound came out from the surround back.

The SR7500 surround connected to the surround back/multiple room/speaker c RCA speaker post, setting the speaker c (meant for zone 2) to either on or off does not corrected the error.

Will try to disconnect the back surr speakers and test again this Saturday.

Anyone having this weird problem?