Who knows about that bass slam, Thorman, he's got 400W/channel! I too am a happy Kharma 1.0 owner and have briefly listened to the Utopias. Unfortunately ;-) I drive the Kharmas with SET's so I can't comment on the bass slam. IMO the Utopia's bass was slow and plodding, power delivery was complements of the VTL MB450's.
Magoo, at this level you gotta listen to them yourself.
Magoo, at this level you gotta listen to them yourself.