What To Replace A Pair Of Lamm Ml2 Monoblocks With? Need More Power


Due to a move to a new house, and a far, far larger listening area, I've had to change speakers to get something that will optimally perform in the large space, which also features very high ceilings. I currently own the wonderful Lamm ML2 18wpc SET amps, and they are simply the finest amps I have ever owned, and perhaps ever heard. Sadly, they cannot begin to drive the speakers I purchased to meet the rooms demands. 

I am currently debating what would make sense to replace them with, which would still make me happy after experiencing the sound of the Lamm's for the past few years. I need something with at least 100wpc and I don't think anything solid state would satisfy my ears. Any recommendations or thoughts on the matter would be greatly appreciated. Thanks.
nightfall
nightfall OP
The Lamms are 18wpc, the Vandersteens need 75-100, at least. That is the issue.
"Could" be Vanderseen says amps 40-300 Watts into 8 Ohms and they have their own 400-Watt High-Current bass amps.

I cannot find any impedance/-phase angle graph on these, so nobody knows what will be good

Like I said best to get something that has no ?? on it for any kind of loading. Like the Gryphon I mentioned, and if your short of $$ for that, get the cheaper Diablo 300 Integrated https://gryphon-audio.dk/shop/integrated-amplifiers/gryphon-diablo-300-integrated-amplifier/

Cheers George
@nightfall Lots of information on Vandersteen pairings out there.  I'd consider reaching out for suggestions from @tomic601 -- https://forum.audiogon.com/users/tomic601.  He's a helpful and very experienced Vandersteen user and can likely point you to some useful threads with amplifier suggestions.  
Going from ML2s to a SS amp, would be quite the change. The Dartzeel mentioned or Pass Labs are the about the only ones I'd think might satisfy you. 
The more likely tube contenders come in many flavors. IMHO, the best high powered option for SET lovers would be OTLs, like the Atma-Sphere MA1 or MA2, the old Tenor 75s
Vandys are often paired with Audio Research; if headed that direction, the KT150 tube models are the best bet, a big improvement over KT120s or 6550 designs. 
BAT 6C33 amps would work, but guessing the combo would be run a bit on the dark side.
Manley & VTL are usually in the conversation when talking powerful tube amps, maybe someone with experience using them w/the 5As could chime in. Cheers.
Spencer