This was trouble free for 2 years, now the Sound is cutting out of the Center Channel like so many have reported. Double checked all the wiring - subbed in a different center channel, it cuts out intermittantly still.Many have noted that they had to crank the volume or turn it off/on to fix. I have found that if you simply turn off the "MCACC Auto Sound" and switch it back on, the sound will come back.But then the Sound will cut out again later. Happens daily at this point.This will be my last Pioneer I purchase.Now I'm looking at the Onkyo TX-SR607 - it seems to get a lot of good press at an affordable price.PIONEER HAD A DESIGN FLAW with this product!!