the mac 275 amp might work in a small room. i use to drive my snells type A2 w/ a single ARC D 79B w/c has the same power rating as the mac 275. but when you play orchestral spectaculars you will see the short comings w/c is lack of power.its for this reason i acquired one more ARC D79B and the ARC EC 21 electronic tube crossover.i also purchased both ARC D250 mk2 servo and ARC classic 150 mono blocks and they worked very well W /the snells A2.these units are all high quality tube units. for your budjet i would suggest the ARC D250 mark 2 servo ,ARC classic 150, ARC vt 200, theyre all less than $ 5000.i hope this would answer your querries
