Hi Ken,

Based on those options, your front end and musical preferences i'd recommend auditioning the Hegel amps. They are well engineered, have a lot of power, sound natural, are on the warm side & punch well above their weight. Though not on your list, other options to consider with the S5's in my order of preference would be the Vitus SIA-025, RS-100/RL-101 combo and RI-100 integrated.

I suspect however given your musical preferences you may prefer the Q3. Good options (again in my order of preference) would be the Vitus SIA-025, Dartzeel NHB-108/NHB-18NS or Vitus Reference series. Soulution also has good synergy with Magico. Pressed to choose an option I would personally lean toward Vitus with the Q3's. The Reference series is very good, though the SIA-025 is the sweet spot in their lineup imho. Fyi I recently posted a review of the SIA-025 in the Pre-amps and Amplifiers forum. Hope that helps