We learned Wednesday that private equity powerhouse Bain Capital has apparently found a buyer for D+M Group, selling it off to another private equity company – Boston-based Charlesbank Capital Partners. CCP is the owner of DEI Holdings, a division of which is Sound United LLC, parent company of Polk Audio, Definitive Technology, and Polk BOOM. It is Sound United that will now also take over D+M Group and its brands Denon, Marantz, HEOS by Denon and Boston Acoustics.