Hi My AVR300 suddenly shut down today - went into "standby" with flashing red power LED. Although it had been running continuously for about 7 hours, it was only for Sky Sports so not working all channels hard and only at volume of 60-65db. The unit was warm to the touch but no more than usual and I was able to remove from standby and operate normally again but am just a bit concerned. Have done a search and seen some discussions on ohm setting. Could this be linked? I have Monitor Audio Silver Series speakers which are rated 8 ohms for fronts and rears and 6 ohms for centre. I don't understand the technicalities of the ohm setting, but after seeing a comment from John Dawson saying set to 4 ohms unless ALL speakers are "true 8 ohm", I presume I have this set ok at 4 ohm. Any other ideas? I know this has only happened once but don't want to find that the second time is when something gets "fried"!! Thanks for any feedback.