I am using the McIntosh MA6900 Integrated Amplifier and the McIntosh MCD205 CD Player with my Sonus Faber Grand Piano Speakers. The MA6900 makes the system more dynamic and open. The imaging is excellent and I was surprised at the amount of bass. Once the system was broken in, my friends were surprised at how good the system sounded. These speakers require high power to sound good since my previous amp was the BOW Wazoo Integrated at 50wpc. I agree with the above post that Sonus Faber Speakers need considerably more power than their efficiency implies. I suggest you borrow the MA6900 amp (and others) and try it out. Using the amp in your home is the only way to decide. cheers...
