Allo Piano Dac 2.1 first impressions

Hi people and Volumio enthusiasts :slight_smile:
it’s been a long time and i’m still using my old rpi3 with kali and piano 2.1 dac.
I recently bought a Spotify account which I use as an alternative to flacs while working,
I have an annoying pop and crack problem between tracks. I have searched in internet for a long time but have not found a specific and definitive solution to the problem …
Any suggestion?