Matching amp to modulus 3B and vanderstein 2ce

Looking for the best matching amplifier to Audible Illusions Modulus 3B, vanderstein 2CE, cambridge Audio Azur 840C, Rega Planar 3. Any suggestions to any or all of the above. Currently running Sonic Fronteirs SFS 80 and sounds real good, but looking to upgrade. Chose system to reproduce live music. Play the guitar and mandolin and good midrange is really important. Highs must not be fatigueing (not harsh), and bass true and not booming. Just upgraded from a modulus 3 to the 3B and there is a bid difference accross the board, really liked the 3 but the 3B has better bass, better mids and highs.