"Tidal: System or App volume for best audio quality?"

[Olek]

"I'm using Bowers & Wilkins PX8 headphones connected to my Mac M1 through the aux output (using a 3.5mm to USB-C adapter). I'm uncertain about the optimal volume settings for the best audio quality:

Option 1:
-Mac system volume at 100%
-Adjust volume in Tidal/Qobuz apps


Option 2:
-Tidal/Qobuz apps at 100%
-Adjust volume using Mac system controls

Which setting is technically better for maximum audio quality? Mac's output supports up to 96kHz.
I'm currently using both Tidal and Qobuz for streaming. Would appreciate detailed technical explanations for why one option might be better than the other with this specific setup.
My setup:

Mac M1
B&W PX8 headphones
Analog connection (3.5mm to USB-C)
Streaming: Tidal & Qobuz"

 

[Vincent Kars]

I wouldn't be surprised if Mac volume control is digital
I wouldn't be surprised if Tidal/Qobuz apps volume control is digital too.
Try both scenarios but don't be surprised if the difference is zero.