Is it me? Comments on the Rega Mira integrated.

I bought a Rega Plant CD player a while ago and have been extremely pleased with its musicality. So I thought What better amplifier to replace my old Marantz than a Rega Mira? You know, looking for synergy and all that. Well, was I disappointed when I took one home to demo recently! I found the bass to be overly prominent and flabby, a diminished high-end, and a decidedly constricted soundstage. Compared to my Marantz Special Edition integrated, that is. Reasonably detailed sound, however, a shortcoming of my Marantz. PEOPLE: What has been your experience with the Mira? Is it just me? Any suggestions for a good integrated to match up with my Rega Planet, 1K or under? Thanks!