I also have the Mahlers and I am using a pair of Classe CAM 350 monoblocs. While expensive ($7000)they sound
great. They produce a wide deep soundstage, almost 3D at times. The entire musical frequency range is reproduced
very accurately and without any harshness. The best suprise
was how dynamic the 350's are. Both the micro and macro
dynamics just seem to come alive. It makes listening to
music and DVD soundtracks exciting but never tiresome. You
can listen to this combination for hours at a stretch and not get listener fatigue. The CAM 350 absolutely nails the bass. It takes some wattage to control those four Eaton 10" woofers (or subwoofers as V.A. calls them). If you like bass then you are in for a treat. It is very fast, tight and musical. On DVD soundtracks with lots of bass the effect is outstanding. It may even be enough for you to eliminate a subwoofer. There are several excellent power amps that work well with Mahlers, (Rowland, Edge, Theta, GAmut, Levinson, BAT) and each sounds a little different but all sound very good. But the Classe CAM 350's brought more life and excitement to my system than the others. By the way Quigly, what pre amp are you using?