If price isn't an issue, how about a B&W Zeppelin ?

I've heard the big one, and it was pretty amazing, though definitely not portable. And not cheap. I haven't seen nor heard the "mini", but it might be more the size you're looking for.

M80v2 | VP150v2 | QS8v2
SVS Pci+ 20-39
Emotiva UMC-1 & LPA-1
M22ti + T-Amp, in the Office