Bowers & Wilkins PX8 S2 vs PX7 S3 - What's The Difference?

The Bowers & Wilkins PX8 S2 is here, and they are a very premium set of active noise-cancelling headphones. And with it comes a very premium price. Should you spend more on the PX8 S3 or opt for the Bowers & Wilkins PX7 S3? This video will help you answer that.