This is my mini-rig, version 1. I have a THD univalve guitar amplifier, a Euphonic Audio Whizzy 10 and my custom RGW chambered solidbody with piezo bridge and dark star mag. I have a choice of 2 preamps to use: A phil Jones Bass buddy, or a dTar Equinox. When I want to go truely mini, I just use the bass buddy and the whizzy. Sounds killer any way that I hook it up! Love that warm and mellow class A tube amp sound of the univalve!