Off the top of my head...
If you like neutral highs, excellent midrange detail, deep and articulate bass, try a Pass Labs .5 series amp.
If you prefer your highs a little less forward, awesome midrange, and similarly great bass, oh yeah a little warmer room temperature too, try a Plinius.
There are plenty of others too. Rowland sounds expecially good with B & W too.
If you like neutral highs, excellent midrange detail, deep and articulate bass, try a Pass Labs .5 series amp.
If you prefer your highs a little less forward, awesome midrange, and similarly great bass, oh yeah a little warmer room temperature too, try a Plinius.
There are plenty of others too. Rowland sounds expecially good with B & W too.