Dione Hardware Failed (or maybe not?)

[intouch1]

watching my first movie on the Dione, at a volume of 80% and Dolby Atoms the sounder failed. Seems the woofers have gone and it produces a thin sound and ringing.

I reset it, unplugged all cables but the hardware is gone. Can't tell if its the amps or the drivers. 
Doing the sweep room calibration there is no bass anymore. And playing any music its tinny and there a ringing sound.
Power light does not stay on either.

I let it cool off for 10 minutes and now it seems to be back to normal. maybe the bass amps were too hot and switched off and now came back ?
power light stays on now.

well, I would be glad if that is the case !