Thank you very much for the explanation, for now I have checked several regions and stayed on WM1Z External Tunning. I'm wondering one more thing, I've had the NWZ-S739 for over a dozen years and when directly compared with the A55, they sound very similar. Maybe the NWZ-S739 has slightly more...

MrWalkman software is already installed. Sound Signature WM1Z (SIG3), Region MX3, PMV2. I play music in Direct at volume 62, when I turn off DS I have to raise the volume to 72 to equalize the volume. However, I have the impression that with DS the sound is more dynamic (all correction options...

Hello everyone. I'm checking the Mr.Walkmann NW1Z software in A50 and I would like to ask if the Direct Sound option activates this software? I have the impression that after turning off DS, the sound is much worse.