My preamp is a custom piece consisting of a K&K Audio phono stage and S&B TX-102 trannies. The phono gain is 70db and the input sens. of my amp is .75v. Cartridge output is 0.4 mv. Most speakers I use have varied from 89-92 db sens. and this worked great with all of them. I even had success using Magnepan 3.5s in this setup.
Oz
Oz