Two transformers is really uncomfortable for my brain.
Why the two transformer phobia here?
Years ago, I auditioned a pair of Sound Lab U1 speakers with three amps: Atmasphere MA1, CAT JL-2 and Parasound JC1. First up was the JC1 and the sound was boring. Had this been the only amp I heard that day, I never would have bothered again with the SL speakers. Next up was MA1 and the sound was truly beautiful. Dimensionality and harmonic structures was truly incredible. The JC1's were absolutely broken in comparison. Last was the JL-2 which did not have quite the lushness of the MA1 but with the CAT came far greater dynamic contrasts and a bigger bolder presentation. The choice between the 2 tube amps was not easy, as both had excellent tonal coherency with the MA1 just having a little more presence in the lower mids. But I went with the CAT as it controlled the SL speakers with incredible authority and I knew I could get some of that MA1 "magic" back with the right preamp and tube rolling efforts. And ultimately I did with Aesthetix and later Aria preamps. So the whole notion that transformers are "bad" was clearly disproven to me that day.
I still suspect that the VTL or Manley amps might be outstanding here as they too bring on an outstanding 3D quality that might work beautifully with the ML's. If you want to consider SS amps that won't break your budget, look for a good deal on a BAT VK 600SE. I have a pair of these in mono configuration and they are outstanding with the Sound Lab A1s. But I gotta believe a single VK600SE would be plenty. The result is not at all like I heard with the JC1's. Why the obsession with the JC1's in these forums is beyond me!
Oh, and I did hear the RM200 amp several times at a dealer and every time, his system sounded wonderful. So this too may be an option, but it might run out of steam when you require a louder volume setting or are in a big room.
Again, call VTL, Manley and ML to get the advice on these exact products and not be focused on white papers of other products.