Haven't heard the Magico V2's, BUT a few years ago we did an 'AB' of the original
Magico Minis vs. The original GH's. All preferred the GH's by a wide margin. In my room which is appx. the same size as yours, the GH's just worked a lot better. Haven't heard the Mini 2's in this room either so cannot say about that pairing.
BTW, see my review thread as to the various differences between the SF GH's and the GM's.