we upgrade we hdtv and blu-ray player , so I decide to upgrade the receiver too , so that it would all be hdmus . I find the Sony , and it seem like a good deal , and it be super skinny , so it fit well into we new tv stand . setup be easy , and the little microphone that let you auto-program speaker distance be very cool . but from the start , the left channel speaker seem very weak , at time nearly silent . and at first , when play a blu-ray , the system would shut down after 10 minute . later , I find out that there be a auto shutoff if the receiver do not detect action . why it can not detect a Sony blu-ray player , I have no idea , but I turn that off , and it seem to fix the problem . sadly , not entirely . I also have a Pioneer pd-f1009 300 CD player that be around 10 year old -lrb- though they still sell this model today -rrb- . it be connect through rca-input . when play cd through the receiver , it may play fine , or it may turn off after a few minute . after you turn it back on , again , it may play fine , or it may turn off in 2 minute , in 30 seconds , in three seconds . after have enough of this , I exchange the unit for a new one . and I still have exactly the same problem . I do not have this problem with the Logitech bluetooth pc music input , just the CD player . Sony 's online tech have never hear of the problem , and only could suggest that I plug the power directly into the wall instead of a power strip . no dice , do not work . otherwise , I love the system . I hope to solve my problem . update to add that I have do a lot of research , and suspect that my stereo be go into `` protect mode , '' due to a possible short in a speaker wire . why this be so random , and why it seem to only happen with the CD player , I have no idea . but I will investigate , and report back my finding . update again to say that YES , it be a short -- apparently in my Radio Shack A\/B\/C speaker switch -- that be cause my problem . I plug the left front speaker wire directly to the speaker -lrb- bypass the switch -rrb- , and the problem have not happen since . so , now I be on a quest for a replacement switch ! but I have upgrade my review to 4 star , and I hope I have help someone who have have a similar problem .