I agree with Donaudio. I own LA-300ME and its the best, simpy the best preamp I ever owned. I owned before Capri by Jeff Rowland. Recently, I auditioned, for a few minutes admittedly, LA-150SE and its texture is almost identical to LA-300ME. "300" has better dynamics and clearly better bass - but not by much. I prefer "300" but it cost twice more then LA-150SE so for money its no brainer.
Mike
Mike