Edited by DanPluck - 4/15/14 at 6:02am
Well, there are places in the US where you can get a good deal on these if you know what I mean...
Unless UK customs check every single item's value as it goes through.
Tonality is what it is really all about. Both these new planars I am using are both very comfortable. The P1 is as comfortable.
I often use the track Would? from Alice in Chains unplugged album for some bass testing, and overall sound quality. Nothing complicated, but just to check if the region where bass guitar/acoustic basses reside is bloated or not.
Not sure about lower bass testing in acoustic though.
This is not the HE-6 successor. The HE-560 is made to fall in between HE-6 and HE-500.
HE-400i is made to replace HE-500 and render HE-400 obsolete as I see it.