I play Tool, Disturbed, Godsmack, Volbeat, etc. on my Tekton Enzo XL with tube preamp and SS amp. That kind of music will need a little higher power tube amp or a tube preamp + SS amp.... they sound amazing though - cannot even imagine the Double Impact.
I am playing to EXTREMELY loud levels (near concert) with the tube preamp, a small 55-watt B&K solid state amp, the Tekton Enzo XL and a pair of HSU VTF-15H v2 subs.