I too agree that a monster tube amp might be ideal, but if you are looking for a bargain basement solution, a trusty old Aragon 4004 MK II worked very well for me on a pair of ML SL3s.
It drove the hell out of them, sounded just fine, and never gave me a single problem even though I left it on continuously for about 7 years.
It drove the hell out of them, sounded just fine, and never gave me a single problem even though I left it on continuously for about 7 years.