New one, bought and manufactured in Dec. 2012. I have no reason to doubt you about the SQ variance, but it would have to be a pretty big difference to even match the Ref7.1. I had the PWD2 burned in for 500 hours and had it for almost 2 months in house. Did a lot of comparisons. One thing I'll say is the PWD2 was super detailed and super fast. I agree that it was congested and lacking some bass (*relative* to the Ref7.1).
5/4/13 at 2:42pm