I've spent them afternoon ABing BBE's 2 preamps. The BMAX and the BMAX-T. I put an amperex tube in the T. The are similiar animals, and I don't find the non tube version to be any quicker, the the tube one has that tube blossom to it, and seems to give more of a blanket of low end. The non tube seemed dryer, yet the tube is a bit brighter. They're both great sounding preamps. Anybody else compared these two?