I had the opportunity to listen to the new PM1's last week and was very impressed. Great imaging and separation. Strong and tight bass that you would expect from a speaker three times the size. Was very accurate but I did not feel it would be fatiguing. I really liked what I was hearing.
I was considering putting them on my wish list and maybe going for a pair in a year or so.
Then I saw the sensitivity was only 84dB spl.
My Rogue Cronus Magnum is a hefty 90 WPC, but would it (or most tube integrateds) be powerful enough for these little guys?
They were being powered by a McIntosh 2102 at 100 WPC and sounded very strong at moderately high volume.