I had a Sachs and really liked it, BUT, for the life of me I could not eliminate the noise it sent through the tweeters. I tried every trick in the book and eventually gave up. I had even wrapped it in Sapele Pommele veneer as I had enjoyed it so much at the start. I became frustrated over time when the linlai tubes were a rage and they would not play without horrific noise issues. Don guided me to make some internal adjustments but they failed to produce good results.
I sold it to a happy user in Florida and ordered a Motherlode 2 to pair with my Coda amp. Then I moved and the MOtherlode remained in the unopened box for months. I finally finished my new system in Tennessee and the Aric preamp is extremely quiet and as musical as the Sachs. I have no issues whatsoever and really like the fit and finish.
Aric was great to deal with and builds a very high quality unit. You will not be disappointed.