At Musical Surroundings, the Metis line-stage preamp from Aesthetix, first seen at the 2014 RMAF, was running the big demo system. This new 4-tube preamp replaces the multi-chassis Callisto at about $25,000. Notable features include the replacement of traditional interstage coupling capacitors with proprietary circuits and a so-called "Invisible" power supply within the main chassis. The PS sits inside but, with the Metis placed on a flat surface, separate supports lift the power supple free from the chassis so that it is isolated from all the audio and control devices.
