đŸ”¶ Sennheiser HD660s

I bought the HD6XX (I know, this isn’t the 6XX forum, but since I originally posted on here
).

Anyway, wow. I can see what people like about this series. They’re pretty freaking good. Good on solid state, and even better on my Bellari HA540 Mk2. These sound WAY better to me than the HD560S does
 everything sounds way more dynamic. Engaging? Both?