where as id go solid class a/b Bjt with say 8(!hahah!) labhorns and see what happens.
BTW did u hear,a french company COPIED the labhorn and were at an event in europe,some one in the prosoundweb forum.

its not really 96kw valve power :-P(which is the first impression you get)

perhaps valve pre amp-or music recorded with fuzzy valve harmonics

its funny how people measure audio systems goodness,by INPUT POWER not OUTPUT power/dbA. Cant see what highs or midrange are there.

Id take adrians system anyday ! i trust the design !

Cheers