improving digital amp sound

I have to say that I am using my digital amp with French speakers. French speakers tend to be fast, but a little lean, and a little bright on top, so maybe not the best synergy. I have been auditioning Sonus Faber Cremonas and Dali 800's as possible replacement. I was going to pair them with new Bel Canto monoblocks. I also own a Mccormack amp, and I have to say it is a very warm and pleasant sounding amp.

Ps. The new series of Bel Canto amps do use a switching power supply. The older generations used a traditional toroidal power supply.

like 'any' amp, matching with the proper room and speaker is still going to make the biggest difference.