Call Wadia, they are quite helpful. I called them when I was looking for a player, and seem to remember one of their guys telling me that the transport on the 6 is obsolete and unreplaceable should it fail. But call to confirm this and also just to get some advice. Their recommendation to me was to spend a little more and get a used 830, as they felt it was the best bang for the buck. The 16 or 21 is also a good choice in price/performance ratio.
