I own the P300 myself & must admit am extremely pleased with it. One thing that bothers me though, is when a manufacturer who has a relatively new product is already upgrading it. In addition, the multiwave may offer great sonic improvements (I don't know because I haven't heard the upgrade yet), but $250.00 for a board & chip that I put in myself??? Sorry...but that's truly a RIP!!! I mean the whole unit only cost $995.00, so $250.00 for a board & chip. Come on PS Audio...give us a break!