Sorry, I originally posted this in the wrong forum! I have been wanting to upgrade to a tube preamp and need some advice. I have a chance to pickup a used Alembic F1X for a reasonable amount, but wanted some advice before doing so. Bottom line: I've never heard anyone really say anything bad about this unit, but I've also never seen one around here to go try out. I wanted to look into the SWR Grand Prix (dealer never has in stock) and the Demeter (nobody has one in Atlanta). My budget will only allow me to buy used. There doesn't seem to be many floating around the used market. I guess that's a good testimonial for all of them, but it's a little tough to make a decision "sight unheard"! I do some studio work, so I would be really interested in hearing from you guys who have used any of these in the studio. Live, I play through a Crest LA901 into a Hartke 410XL, and both basses are passive Fender J's, so if you have any feedback about any of the above preamps with the Hartke cabs, that would be appreciated as well. BTW, is the Ampeg SVP in the same class? Let's see...what else is on the list...oh yeah, butter, eggs, milk, and pickup dry cleaning. Thanks!