The Coltrane sounds great with Vitus, Jorma Koski uses his modded Coltranes with Vitus with great results. I also like them with Krell.
Lamm wouldn't be my first choice, even though I've just heard the Coltranes with the 2.2. The Coltranes are not an easy load! I'm not that impressed with the Beowolf/Coltrane combo either though I know some people are. By the way, the speaker was not designed with Beowolf, the amp came out a couple of years after the speaker. I know that Leif has been using EAR in the past and they also work well.
Lamm wouldn't be my first choice, even though I've just heard the Coltranes with the 2.2. The Coltranes are not an easy load! I'm not that impressed with the Beowolf/Coltrane combo either though I know some people are. By the way, the speaker was not designed with Beowolf, the amp came out a couple of years after the speaker. I know that Leif has been using EAR in the past and they also work well.