Integrated amp for my Dynaudio Contour 30s!

Hello all...
have been extensively researching for the final upgrade for my Dynaudio Contour 30s. I tried to push these with my $1k Yamaha S801 Amp, which sounds it has completely missed the bass.
 I have a budget of $3~4K(used price).  I listen to everything from classical to techno.  I am weird like that :)
After reading endlessly, some of the finalists are from #1 choice down:

Anthem STR Integrated(I love the cosmetics, especially high tech display)
Hegel H190(I read numerous great reviews)
Simaudio Moon 600i(Probably out of my range, but reviews are outstanding!)
Simaudio 340i X(200wpc at 4ohm)
Krell Vanguard

Any inputs will be appreciated it!