Yes Dave they are the M2.2 mono blocks 220watts 8 ohms - 440watts 4 ohms - 600 watts 1 ohm - so yes plenty of juice.
Btw,I would think your friend's system must sound pretty darn good.
Oh, before I forget, when I used to own Acoustats ( 3Mc's) , way back in the day, the 'C' mod for the transformers was a pretty good upgrade, along with removing the grlll cloths ( assuming no little hands to get into the stators). Lastly, I remember vacuuming the panels also seemed to bring about some SQ increase. ( remember the darn things attract dust like a magnet and vacuuming the panel seemed to help remove some of that...just don't use too high powered a vacuum---otherwise you can suck up budgie, LOL). One of the other Acoustat owners ran a support bar from the top of his speaker to the ceiling to stabilize the panel, seemed to also work a little magic.