I bought this unit to use with my Apollo x4, I have only used it a couple of times tracking drums and bass. It was purchases new from long & mcquade where they list for a few dollars shy of $2000.00, and I purchased it maybe 2 years ago.
It sounds great and the only reason I am selling is because I am going toward using a console instead. This is a excellent addition for anyone who needs the extra inputs and it worked perfectly with my x4, I highly recommend it for that purpose… ships in the original box and has a couple small scratches that can barely be seen, only installed in a case once and that is where it sat until today.