I could listen to my 6600 24/7. You just never get tired of it! I've heard the Rega and while it's a very respectable amp, there's no comparison to the 6600 (YMMV).
mcintosh ma 6600 vs rega osiris vs nad m2
i want to buy one of this 3 amplifier, i have canton speaker who sound bright whit a deep bass. I like dynamic sound whit a good punch in the bass. Does anyone can advise me for the best choice?