To Jeff Fritz,
I'm an audiophile from Hong Kong, and also a Magico Q7 user. I've tried several amps with the Magicos, and all of them failed to bring out the real muscle of the speaker. Recently, I began to pay attention to Gryphon Audio Designs products and I suddenly found your article! Now a Mephisto is my number-one choice among three brands: they are Boulder, Constellation, and Gryphon. A true class-A Gryphon might be the real engine for the Q7. If money is not an issue, do you agree that the Mephisto Solo would be the perfect end choice? With my warmest regards and Merry Christmas!
You are definitely on the right track. Although I think really highly of Boulder and Constellation, I have not had either brand powering the Q7s in my room. I have heard Constellation match well with Magico at shows, however.
My top two choices based on what I've actually heard in the Music Vault would be the Gryphon Mephisto and the Soulution 711, which are stereo amps. The mono variants of those models would presumably work even better. Still, both the Mephisto and 711 supercharged the Q7s in ways that astounded me. They do not sound the same, but did share one common trait worth mentioning: bringing the subterranean bass of the Magicos to life. Lesser amplifiers that I have used on the Q7s sounded anemic by comparison, with the bass response suffering the most, and not by a small amount.
The bottom line for me is that a super-high-current amplifier from one of the brands mentioned above is what you need. Anything less and you simply will not hear what your Magicos are capable of. . . . Jeff Fritz