"Cleanest and most detailed" certainly sounds like Bryston to me, and in my system no other amplifier controlled bass better. The fact that other people have liked them with Maggies is also a good sign. Spectron sounds like a good recommendation as well. Linn amps are obviously very good, but I've found they don't always mate well with some speakers (i.e. they didn't sound very good w/ B&W in my opinion), so before going that route I'd look for some feedback from people who have used them with Maggies.
From what you describe though, Bryston is a no-brainer recommendation. Best of luck.
From what you describe though, Bryston is a no-brainer recommendation. Best of luck.