Hi There, I am new to this forum. I was searching for people who had experienced a similar buzzing sound on their Sony STR-DB1080 and my search came up with AV Forums. http://www.avforums.com/forums/showthread.php?s=&threadid=62866&highlight=buzzing I bought my Sony STR-DB1080 (from Techtronics) when it was first released and must say that it is one excellent piece of kit. I did not notice the buzzing sound until many weeks later, but it is just the same as everyone else here has described. Unfortunately I returned the unit to Techtronics, and they have now had it for almost two months (since 11/02/03!), in this time I have not been able to use any of my other audio equipment. They say they can't find a fault with it but I have insisted there is one - I tested it thoroughly, isolating everything and I could still hear the buzzing through headphones. They have now sent it to an independent repair company for testing. I have not been very keen on Techtronics customer service as I have had to do all the chasing and they have not yet let me speak to one of their engineers. If they can't find a problem I will be stuck with a faulty STR-DB1080, in an almost second hand state, as they have actually had it longer they I have. What I really want is a replacement! Can anyone give me any advice? Thanks.