Passive preamp using high-nickel autoformers from Dave Slagle, and a remote-controlled Shallco attenuator switch from Bent Audio. Built for my friend Tim Dean. Wiring is all solid silver in teflon, jacks are Cardas. Wood is curly claro walnut and zebrawood. Knob and surround are solid 6061-T6 aluminum, fully polished. All hardware is non-magnetic.