There has been five months not receiving a firmware update. It seems that Sony has given up zx500. So disappointed.

Hope USB-DAC function can be included in 5.00-level firmware:weary:

I have these two, but I don't have 'golden' ears so I can only tell you my subjective opinion. For the bluetooth, I think the sound from zx507 is the same to the sound from an Apple device. The best bluetooth codec APM would support is always AAC (currently, I believe), so all machines to APM...

Thank you for replying. I totally get what you mean here. In fact, my ears even cannot distinguish the AAC file and the lossless song with 16bit 44.1khz. Apple Music supports lossless and hi-res lossless on Android today, so that 's why I am a little interested in the data output things...

Hi, I have a question about 'bit-perfect' on ZX507. As the Hi-Res streaming mode is on, the output of all streaming music would be 32bit 192khz. I know this process is called upsampling and cannot be regarded as 'bit-perfect'. However, if my streaming app provides a Hi-Res version of a song...