dh0licious
100+ Head-Fier
Instead of a music app’s EQ, there is also the option of Wavelet...
https://www.xda-developers.com/make-your-headphones-sound-better-automatic-eq-wavelet/amp/
edit: but I think the music apps it supports are limited, at least based on my experience. Seems to work on Google Music and Youtube, but not on Tidal or Audible...
Really cool. Just installed and playing around using my ES100 and BTR3k.
Do I need to open the Wavelet app every time I listen to music on my phone, or will it automatically 'apply' when I start my phone?