I am not a Magico fan, but the only time I have enjoyed them was with a devaliet amp, very nice indeed. The last demo with Magico used $200,000+'s worth of constelation amps. I thought it was painfully hard and dry, not my taste at all.
The day I heard them with Magico, next door they had a devaliet 170 with Sonus Faber standmounts, not sure which ones. Now I love Sonus Faber, but this combination was'nt a success, muddy hard edged sound, lacking detail.
It does seem odd to me that some products you can match with almost anything which is electrically compatible, others are really fussy about matching. Take Wilson speakers, I find them painful with Krell amps, but delightful wit ARC and D'Agostino Momentum amps.