Are you using a USB-DAC or a passive USB-C to headphone-jack adapter? If it is a passive adapter, I guess the Fairphone 6 has a worse DAC or your connector could be bad. Otherwise I couldn’t tell what the cause could be.
I tried 2 DAC’s and a passive adapter and for me with a passive one it is also kinda meh in terms of quality and volume.
The two DACs I referred to are both active: The hifi has a high end DAC by Audio Note. It’s one of those settings where you just want the sound to shine. And it did with my old FP3+, just not entirely the same with FP6. Which I find just strange. And the smallest movement of my phone makes it disconnect from the DAC and pause the music, which I’m not used to either.
The mobile DAC is a Fiio, and actually I can’t make it work with the FP6. I suspect it has to do with the micro-usb→usb-c adapter I’ve been using. I just find it strange that FP6 can’t find the DAC as an audio unit when FP3+ does it.
This last issue actually made me buy a passive Fiio DAC, in order to listen through headphones, and this DAC plays without issues for me. Luckily!
You mention “The mobile DAC is a Fiio, and actually I can’t make it work with the FP6”, but then later say “made me buy a passive Fiio DAC… and this DAC plays without issues for me.” - so I take it you have 2 Fiio DACs, one works with the FP6 and the other doesn’t? Which model does work? About to receive a FP6, and want to get a DAC for wired IEMs, but don’t know which will work. Thank you!
I would give that a chance: Maybe it could be necessary to install a new FW via another smartphone if provided by FiiO. I’m not sure it’s only a cable-related thing. I guess the overall chain of FiiO DAC/Cable/FP HW/Android Audio Stack (…) can be slightly fragile.
I thought FP6 needed an external DAC to play audio on cable headphones. Are you people saying that even a passive adapter will actually get audio out of this phone to cable headphones?
My Fiio Q1 worked on Android 9, 11 and 13 on my FP3 but not on 10 for example. Never knew why.
Works on my FP5 but I never tried on my wife’s FP6. I’ll try that out tomorrow!