I know most of us pair up the M80's with the likes of Denon's or Harman Kardon's and even a few Pioneer Elites out there.

I currently have a HK AVR-630 and I want to upgrade to Blu-ray and HDMI, etc, etc. The new Onkyo TX-SR607 has such a greater feature set than the new HK AVR-354. Are any of the new Onkyo's capable of powering the M80's without issues?

Any of the Onkyo's that carry the THX certification should be able to drive the M80s, as this certification means it can handle down to a 3ohm load. There are a few Onkyo owners that are running M80s, I just can't remember who they are.

With that said, there have been some individuals that have had issues. Onkyo's do run warm by nature, but you should be fine. I know if you go to their website it says they are THX 4ohm certified (3.2ohm tested by THX)

The Harman Kardon's run warm/hot as well. I have an external fan sitting on top of mine to keep it cool just in case. I would imagine HK's new models aren't any different.

Seems like it has been a long time since HK has come out with any new receivers, what is up with that.