Yes, I purchased a Companion II that was upgraded (Cardas wiring and Cardas female RCAs, Infini-Caps, Goldpoint Volume Pods, Detachable Power Cord socket, pair of JAN Philips 6922, etc), and checked out by Bob Bergner. The Bruce Moore Amps and PreAmps are built for a lifetime of enjoyment. Tube, Interconnect, Power Cord, etc. rolling is great fun because the units are so revealing, with 3D soundstage, focused images, and musical.