This is an Esoteric P01-VU. This is not an upgraded unit. It was purchased from an authorized Esoteric Dealer. If you know anything about Esoteric, than you know that this is the finest Transport ever made by them. You don't see these because people who own them know that there is nothing available close to the performance of these. This is in mint condition. And it's being offered at 55% off!! When this unit was produced Esoteric was a division of Teac. Today Esoteric is owned by Gibson Guitars.