Hi all and thanks for looking. I've had this Logitech z-5300 for quite some time with no issues until just recently. When cranking it up and jammin to my favorites all of a sudden all of the speakers just go out......nothing. The headphone plug in still works and some times if I turn it off and on and or switch the matrix off and on it comes back on. But sadly, it keeps doing it over and over. I have cleaned everything including the amp and all of its components to no avail. I really love this system and wouldn't trade it for anything. Any idea what the problem is. Any ideas would be greatly appreciated! Dan in Cleveland