It's been about a month now since having the M2-600M mono's powering my mains, a pair of KEF Q900's. Now bear in mind these mono's are a Class D design (Class D does not mean digital) & they use a new topology module from a company called ABLETEC headquartered in Norway. They are not the same as the ICE powered Class D amps that are out there.
They have incredible power (600w/8ohm/1000w/4ohm) & massive peak power capabilities (2000w). Their performance is nothing short of amazing. The musical prowness that they convey is where it's at in my book. From top to bottom the music just flows unrestricted without any need for concern on the speaker load they are driving, my KEF's dip down into 2ohm territory. They have an airyness about them that just seems to suspend the music in front of you, uncanny is one way to describe it. Nothing brittle or harsh what so ever, I don't want to venture into the old addage of saying they sound "tube like" because they don't, at least not to any large degree. They simply get everything right without calling attention to them selves except in the power department. When it's needed, it's there...and boy oh boy is it ever.
I took them over today to Stephen's place (Quest for Sound, he was intrigued & wanted to hear them) for a listen in his rooms, these guys are big time "tube" lovers. Stephen in not a fan of Class D or ICE power at all. Neither is his associate Dan who was also there. We set them up in his middle room on a pair of KEF R500's & fired up the tunes. Stephen & Dan now have a new dilema on their hands, they both liked what they heard!!! They simply weren't expecting what they heard. Now they weren't just being nice to me at all. If you know Stephen & Dan you'd know what I mean. The session was cut short by a personal phone call I received right in the middle of it all (nothing serious) so we had to pack them up for my trip home. Both Stephen & Dan insisted I bring them back to mate them with other hi-end speakers & different SS & tube pre's he has. In his large room sits a pair of the KEF Blade speakers that they want to hear them with the mono's. That should be another fun day.
Take notice how the Rotel RMB-1095 dwarfs the mono's in size!! Too funny!