I found a 'blem' version of the EH 12AY7 preamp on Musiciansfriend for $165.00 so I ordered it. Based on all the buzz on this board (okay mostly from CoyoteTrax) I decided to give it a try. Like all the Electro Harmonix stuff, it's just a little "off the wall" and althought it's not a very convenient form factor (basically a stomp box chassis that will hog desk space) I've decided to give it a whirl. At that price, it's a cheap experiment. I'm going to try tracking electric bass guitar (via my Radial Engineering D2 passive DI), acoustic guitar with my Rode NT1, and vocals. With the balanced out, I'll have it output to my ART Pro VLA and then into the Edirol DA-2496. I'll post some findings once I get it installed.