kemmler3D
Master Contributor
Glad to hear the ZD3 is working out well, and belated welcome to ASR!
I will try to restate the gist of what @HalSF was getting at, which is that based on the measurements we have of the M4 headphone output, there is no reason to think it would have bad sound quality. This is not to say it definitely didn't in your instance, something could have gone wrong... but the data we have suggests it should sound the same as any other DAC.
You will find it annoyingly common here for people to suggest placebo effect as a likely cause for things. But, unfortunately, it's super common for people to hear things for reasons other than the actual performance of the gear. This doesn't mean they didn't hear it, but the cause of what they heard is often misattributed. It's happened to me, and it's probably happened to you.
This is why you can find people saying their ethernet cables have a sound, and so on. They absolutely do not have a sound, that's not how ethernet works, let alone digital audio, but try telling them that after they heard it...
I will try to restate the gist of what @HalSF was getting at, which is that based on the measurements we have of the M4 headphone output, there is no reason to think it would have bad sound quality. This is not to say it definitely didn't in your instance, something could have gone wrong... but the data we have suggests it should sound the same as any other DAC.
You will find it annoyingly common here for people to suggest placebo effect as a likely cause for things. But, unfortunately, it's super common for people to hear things for reasons other than the actual performance of the gear. This doesn't mean they didn't hear it, but the cause of what they heard is often misattributed. It's happened to me, and it's probably happened to you.
This is why you can find people saying their ethernet cables have a sound, and so on. They absolutely do not have a sound, that's not how ethernet works, let alone digital audio, but try telling them that after they heard it...