I use Halcro 68s with Soundlab M1s. The sound is incredibly dynamic and detailed. Soundstage is incredible, 'in the hall' with the room vanishing. By way of comparison I tried the Ayre monoblocks and the sounstage collapsed, dynamics and detail paled significantly and the raw excitement of the music vanished. My only problem is I listen loud in a large room. At peaks I can get the Halcro to clip with significant hardening.
