bullshit

I am Sorry, but I had to register just to tell you how dumb this discussion is. Has anyone of you any idea what a USB SPDIF Converter does? It is recieving NUMBERS that represent music via USB and delivers these exact NUMBERS via SPDIF. Since both protocols are protected by checksums, there is absolutely no way, any Data can possibly be sent wrong! These adapters don't do anything than digital calculations without any loss of quality. If you still believe there is a difference between these devices in terms of sound quality, you should probably either visit your doctor or change your hobby. Maybe believing in the Flying Spaghetti Monster could be something you like. When it comes to DACs or Amps, i can not totally deny every influence on the sound quality, but these completely digital devices are just neutral in terms of signal conversion.