Two great speakers, I chose 20.1's but would have had M1's if a used sale had gone through (for my 2-channel system). However I think they sound different enough that mixing them across the front of an HT system might create a noticeable discontinuity (not to mention the load issue).
So good ideas above on starting with 2-channel and adding surround, but on the original question I would go all Maggie - and I love the SoundLabs (unfortunately I think it would be a bad idea to put one of them on its side ;-)
So good ideas above on starting with 2-channel and adding surround, but on the original question I would go all Maggie - and I love the SoundLabs (unfortunately I think it would be a bad idea to put one of them on its side ;-)