Is my setup mid-fi or hi-fi?

Slov_dream, I agree with your assessment of the A21 - I drove Dynaudio 52's with mine, and those are 85 db sensitive, with a nominal 4 Ohm impedance. You should be fine.

nice setup. i also have a pair of mani 2's with classe and odyssey components. I have been thinking about going to a more powerful amp for the mani's, like a classe ca-301 or mcintosh mc352. as for a cdp, check out the esoteric or the musical fidelity sacd player ($6000+). Don't go cheap on your source components.
good luck

To paraphrase George Carlin's riff on 'stuff,'
"My stuff is hi-fi, your stuff is mid-fi."

Regarding the power of the Halo to drive the Mani 2: I was mixing up two different Halo models. 400 watts into 4 ohms should be enough to register on some earthquake monitor some place.
Art

I have a very similar setup, but Totem Forests instead of mani's, and transparent/analysis plus cables, using a sony scd-1 with parasound halo p3/a21 combo. I think it's great, and sounds very much as others have described: clean, transparent, musical, etc., but it all depends on what you think. I was totally happy with my pre/power combo until I listened to some things that cost like 3 times as much. Now I'm looking into getting rid of the halo which my friend has called 'mid-fi'. I was never unhappy with them, and don't think they're mid-fi by any means, I just found something better sounding. At the price point they're tough to beat, unless you're going used. I agree though that they may not have enough WPC to really make your mani's sing. A simple and cheap upgrade would be to buy another A21 and bridge the two.