Mine is an EA iAMP 800 Combo, with a Raven Labs PMB II blender. The bass is an NS La Scala hybrid. Lots of opportunity for tonal tweaking. The pickup is a K&K DBT, which I like very much. Normally, I would also mix in my AMT tailpiece-mounted mic, but as usual, the dimestore-quality cable is futzed up, so it's out of the mix at the moment.
