Monostrapped Atma-sphere M-60

+1 Tomic,
I own the Treo's and use a pair of MA-1 with MP-3. It is one of the most natural pairings I can think of ( I also own a pair of Ayre MX-R's). Both have me enthralled. I really can't think I need to change or upgrade (even though the MX-R's can be upgraded to Twenty status).
Like Tomic said, Ralph would be the best to answer, but I suspect the M-60's should be able to power a pair of Vandy 2's with no problem. If you got a pair of 2wq subs, I think it would be a slam dunk, as the amp has only the top end to power.
Should Ralph think the autoformers would be a good addition, I have a set gathering dust that you could try. I always wanted to put them in, but things sound so good...
Bob

Oh, I got it now.
In my opinion, I don't think you can do it as there in no 'bridge out/in'
on the Atma's. I guess the only person who could know of a way to accomplish this would be Ralph.
Though when he finally gets his Class D amp ready, I bet he might make them bridge-able.
If you do think about upgrading speakers, I know Ralph recommends Sound Lab as the most reliable and easy to drive electrostatic, and they work well with his amps.
If you go with Maggie's you could add a pair of Zero Autoformers to help with impedance issues.
Lastly, if you get the Vandy subs, the crossover will relieve the amp of demanding lower frequencies. You might just be able to run the Treo's with the MA-60's.
Bob

@tomic601 ,
Wow, those 7's are close together. How large is the room?
You also seem to like water views.
Bob