Im currently using MG Rev 6 signature speaker been running them for well over for 6 weeks, if you love sound stage reproduction and amazing imaging these speakers will do a fantastic job especially for your 12' × 12' room size. Midrange and highs are also superb but the bass needs to be augmented with a sub but that is for my room which is 12' × 21' × 9'.
For full details on them you can check out a thread i started under review section :
https://forum.audiogon.com/discussions/michael-green-rev-6-signature-speaker-review
For full details on them you can check out a thread i started under review section :
https://forum.audiogon.com/discussions/michael-green-rev-6-signature-speaker-review