Only 1 year old, and built new as Mk. 3.3. In like new condition throughout. Only flaws are some paint chipping away around the screw holes on the inside of the chassis (see pictures). Perfect working condition, and I would approximate less than 100 hours of use. Factory options of V-Cap copper foil capacitors throughout phono & line stages; regulated high voltage power supply; and damping package to top cover. And there is a personalized message from Atma-sphere inside top cover that is only visible with cover removed. Original factory selected Chinese 12at7’s, 12au7’s, and 6sn7’s provided. OEM packaging, power cable, and manual included! I have limited feedback here on Audiogon, but look up my same username on eBay to see my 100% feedback and experience selling other high end used gear such as Manley, Sound-smith, Ortofon, Audible Illusions, and more.