@gregjacob
I have New Audio Frontiers 211 SE amp (20 Watts) with the Stradivari Preamp and have no problem playing Rock loudly and clearly with the Wolf Von Langa SON speakers. They are field coil speakers that really control bass and I have the speakers on LiveVibe Rhythm Jr stands which really help with dynamics. The SONs are a bit over your budget at $19k or so but they play very well with NAF for all types of music.