This until is only several months old and was purchased from an authorized Rotel dealer. The only flaw is a small scratch on the left side which happened from sliding it out of a shelf. The reason I'm selling is because I ended up purchasing a tube pre amp and I am outside the retailers return window. This is a very impressive pre amp with a terrific dac. I had it paired with a Rotel RB-1582 and Pass X150.8 with impressive results. Thanks for looking.