Alot of great info above , I sold maggies for yrs and ran many tubes and ss through them ( lots of free time at the ole’ brick and mortor ).I have also owned most of them over the yrs except tympanis ,that being said i ran cj personnally and biamped the low end with ss ( bryston, krell ,M.L , cj luxman etc ) am a big vac fan and believe it will drive them .It will run out of steam , but will be magic at med volumes if they are properly setup and the room is treated well . The phi 110 vac will bring more power . With planers power usually is your freind lots of it imo .Personally i always found tube top ss bottom was the juice for planers ..which you could do with your vac . Maggies sound best when they can breath,they can be very placement sensitive . i am in a med room now or i would have 3.6 maggies .. and here i go purist dont throw stones please : ) but i alway ran two fast powered subs also ..jazz rock etc ... jmho
good luck
good luck