I really like my Rogue Sphinx with my .7s, so one of the Rogue amps paired with your tube pre might do it for you. Plenty of smooth power. I do use the 1 ohm resistors Magnepan provided for the tweeter section. I won’t recommend a Musical Fidelity MSi series amp if it’s laid-back you’re after. I tried the M2si And found it a bit bright for my taste. But if anybody’s after energy and zing, it’s got that nailed! I think MF makes good gear.
