Here's a new demo unit of the previous version, and some details. On a Higher Note used to be the main Luxman dealer in the U.S., I believe.
https://onahighernote.com/shop/integrated-amps/luxman-l-590ax-pure-class-a-integrated-amp/
https://onahighernote.com/shop/integrated-amps/luxman-l-590ax-pure-class-a-integrated-amp/