Pretty much every reason across the board. Size, comfort, weight, highs, mids, style, you name it and the HD-650 is better. The only thing the HE-400 has over the HD-650 is more in the lows but then the HD-650 typically is not bought for listening to music with heavy lows. Oh and the HD-650 needs a good amp, preferably a good tube one whereas the HE-400 isnt supposed to need an amp at all.
- 834 Posts. Joined 11/2009
- Location: Sacramento, CA
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