An integrated amplifier of the highest level for performance and design. EXHIBITED AT MO-MA IN NEW YORK Ultra-High Speed DD/DC Circuit Technology at the top of "Superfeedforward": very high dynamic input capacity and very high output dynamics. See original technical photo chart for features. Dimensions: 480 mm x 197 mm x 450 mm; 30 kg Notes: technologically perfect and in excellent condition on the outside, only one owner, for home use. It has only one little problem that I mention for fairness: the on/off switch remained electrically plugged in although mechanically working (on/off), I solved this issue with the help of a power strip with switch. The manual, easy to consult thanks to the graphic guides, is in Japanese; I have the commercial chart of the models AU-X1 which is practically an identical model without sides in fine wood. Attached is a postcard with the serial number of the device. SEE THE TECHNICAL-COMMERCIAL DOCUMENTATION + ARTICLE OF THE INTERNATIONAL MAGAZINE “AUDIO VISIONE DEL SETTEMBRE 1982”.