Anyway, I still love the X-12 preamps and use them almost exclusively to power my drum overhead mics when doing a kit, and also for just about any lead vocals recorded with the BLUE Kiwi microphone! They are totally great preamps. - http://www.wayoutweststudio.com
The SC-1 to me sounded warmer, fuller and in general more musical than others. The guy who runs the lab was pretty blown away that 4 channels of that quality only cost $700 (plus build time) and was definitly interested in a prebuilt unit.