Great review, nice and concise. Of course you know there are more planar headphones on the market right now, but not for this price. I highly recommend the HE-400s to anyone looking for awesome headphones around the $400 range. They sound truly incredible on my Lyr.

That's right, there are a number of affordable planar headphones out there, but they are rather obscure.

I'm actually looking forwarding to getting a pair of HE 400's and 500's my self! But a nice big amp would help a good number of rigs!