My set has approximately 125 hours now and I am very happy with the improvements. I've had headphones in which burn-in seems to do nothing...however the ESW9LTD is not one of them. They sound so spacious and effortless now for a smaller portable can...but most noticeably the bass has fleshed out nicely.
It still has much less bass then my recabled ESW9A's...but the bass is improving in presence and impact. Now my regular ESW9A's seems congested with slightly less clarity, and bass that is loose and too much.
My only complaint is that the ESW9LTD doesn't seem as dynamic at lower volumes. As I raise the volume just beyond my normal listening threshold, they really begin to bloom and fill out. This is the same when fed by either my DX100 or SR71b...neither of which are slouches on amping power.
Hi wolfen,
Thanks for your update. I'm glad to hear the extra burn-in time has produced noticeable improvements. A friend of mine just got his pair and I'll be visiting him over the holiday, so I'll get a chance to do some listening before I pull the trigger.
Micro dynamics are often a product of the source component, not just the amplification.