Try VAC - I've had 2 of their preamps now with my DNA-500 and sonically the match is wonderful. Kevin Hayes is also great to work with and his gear is built to last a lifetime.
There are a number of people on this forum and I imagine elsewhere that have very successfully paired VAC preamps and McCormack amps.
The Audio Mirror is a nice pre and I heard it with several speakers but, my vote would go for the TAD-150 especially if you play vinyl. I have both the TAD150 and 60 and drive Vandersteen 2CE signatures....
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