Currently the best amp I have is a Music Hall a25.2 that I haven't been able to sell. Pretty lucky I guess :)
On top is my Audio-Gd NFB-17 and a modified HE adapter with Rob's 6+2ohms configuration, giving around 12dB attenuation.
Tomorrow I'll be picking up a Yamaha M-4. Very excited to see how it compares to the a25.2 :D