Hi, 

I've been listening to Spotify over bluetooth with some brand new Bowers & Wilkins P5 Wireless headphones. On a few different songs, particularly ones without thumpy bass, I'm getting static / crackles on long sustained midtone bass notes. (An example of such a song is Petit Biscuit - You). 

I've been able to isolate the problem to Spotify, I think, by doing the following. 

1. If I plug in the same headphones to my iPhone, the crackling stops. 

2. If I pull up the same song in YouTube, and play over bluetooth, the crackling stops. 

Any ideas on how to fix this? 

I'm on an iPhone 6S+ and a premium subscriber.