I own Edition 8 Palladium ver.
Well, sound is not HiFi style. REALLY MyFi Style which boosted treble a lot. Remember this.
It is your freedom to buy this or not, but I'd rather buy Signature series than this housing swapping toy. If you just want to boast your fortune, then go ahead.
Do driver R&D , Ultrasone, rather than playing with expensive rare materials.
Ah, one more. They attach pads with weak tape. Absolutely ridiculous.
For the same retail price, you can buy HD800S or MrSpeakers Ether Flow.