Just a tip to those who want to get even better control over the audio quality. Download Sonarworks ‘SoundID’ app(free).
For those who do not know: Sonarworks is an audio technology company founded in 2012 that specializes in speaker and headphone calibration software. Its flagship product, SoundID Reference, applies corrective EQ curves to correct acoustic flaws in rooms and headphones, helping music creators achieve flat, accurate translation across different playback systems.
It have tailored EQ profiles for Fairbuds XL and a pro multiband EQ that you can configure yourself(number of bands, curves type, Q factors etc.) and make you own EQ profiles.