I'm using an Aleph 3 with Quad ESL 63's in a room 19 x 14 x 9, and getting plenty of volume, good dynamics, and so on. I don't listen at head-banging volume levels, but high enough for realism. I'm using it with a Cinepro 10 Line Balancer, which may help. I'm using a passive preamp too, which works surprisingly well with the Aleph 3. Nelson Pass said he wasn' surprised, but expectations were against it.
