i use electras 920 with a 8008bb aragon amp a aurum pre-amp and a adcom cd cables are nordost blue heaven for interconects and vampire for speakers.this is for music .for ht i have a velodyne 15' sub.the room is 18x24 having said all this i don't see the need for a sub the slam is more than good and i like hard rock at high levels.the mezzo should sound more audiophile as the above answer says so it comes down the same as always your ears and taste.these speakers are very efficent so your choice of amp will also make the difrence if you want tubes they will sound different .hope this helps ask anything if you want.
