Adorama.com has HiFiMan HE-560 V4 Planar Magnetic Headphone for $269 (reflected in cart). Shipping is free.
Thanks to Deal Editor iconian for finding this deal.
Note, must add to cart for the sale price.
Editor's Notes & Price Research
These have the latest headband, which is not only much softer, more comfy but does not rely on rubber tension for clamp, so it should be much more reliable. It also comes in a new color and box is marked Adorama exclusive.