Hey Bass Bretheren, I purchased this preamp brand new from best bass gear last June, but didn't get round to installing it until 2 months ago. I installed it in my G&L L2500 with the hope of getting my Wal"ish groove on. I have to say the pre does a nice job of copping the Wal vibe. Although not dead on. Unfortunately, my music is taking another direction these days, and this isn't going to fit for me. The unit is in prefect condition. I didn't do any "permanent" attachment of the preamp. Nothing has been soldered. I am also including the concentric stacked black aluminum knobs that I purchased with the preamp. I am asking $175. Thanks for looking.