Pristine component used approximately 10 hours. I made a dumb move because I bought it new in 2008 to replace what I thought was my dead Lexicon DC-1 pre pro, then managed to fix the Lexicon for $60 so I put this back in the box. It sounds as good as the Lexicon. Here is the review with all the info: https://www.soundandvision.com/content/outlaw-model-990-preampprocessor