I just purchased a Pure i-20 dock and connected via TOSLINK. I need to go play with various rips but I typically rip tracks at 192 for my iPod. Ok, not lossless but the purpose of the Pure was for convenience for my wife to avoid replacing a standalone dock player and not to replace my FLAC library. In any case, the low end doesn't exist and curious if anyone has found the same using the Transporters digital inputs? I'm using firmware v87.