Best integrated for SF Guarneri Homage?

Hi - looking for some advice on the best options out there to match a pair of Sonus Faber Guarneri Homage speakers. I currently own a fantastic Acoustic Plan Sitar integrated (40 watts per channel - hybrid design)in a 6 x 4 x 3 mt dedicated room - but have the feeling that I need more power.

I listen to Jazz, Alternative and Blues 75% of the time and reasonable levels.

Thanks for your feedback.