Soundsgoodtome
Headphoneus Supremus
Are you using the ember to power the he6? If so how is it?
The HE-6 is by no means a giant leap from the performance of the HE-4.
HE-4: More bass, more air/bigger soundstage, hit or miss treble, better comfort/weight, better price, fun and aggressive.
HE-6: Blacker background, controlled, less distortion, more reliable treble, very immersive, neutral and polite.
I really like both of these headphones, and I doubt I'll get rid of either one.