I have a One Plus 3 phone and have just got a Pioneer XDP 300r portable DAP that also runs android. I use Tidal for music on both.
I've also just recently bought my first ever pair of bluetooth headphones.
The phone has a graphic equalizer but it doesn't work with Tidal. The DAP has a graphic equalizer but that only works on the built in player which you can't use to play Tidal tracks you've made available offline.
Anyone know of an equalizer app that will work with Tidal on android? Preferably over Bluetooth also?