I read on another thread that the Sony F880/ZX1 range was not in the same league as the DX90/Fiio X5. I find this very hard to believe as both the DX90 and ZX1 are truly astounding players with imo very little to choose between them. I dont think buyers could go wrong with either.
for some reason Sony's get knocked in other threads, mainly by people who have never heard one so they surmise things.
look forward to more reasoned thoughts for sure.