I got mine in the cyber monday sale and they have the 2.5mm connectors and no backing plate on the driver. I don't find the soundstage that open but I have come from akg q-701's and my stereo rig is SET amp and horns so I'm used to *big* soundstage. I'd say it's a revision. It may also be...

My black Friday He-400i's just turned up. I got them after recently losing my Q701's (with bass mod). It's been two weeks without decent headphones and I've not had a chance to crank up my SET amp and horn speakers in that time either. I'm definitely looking forward to having quality cans again...

  Yep. Mine's got a few hundred hours on it and sounds full and rich now but it sounded quite hard for the first 20 hours or so then eased up further over the next 100-200. It wasn't a brain change either - I'd left it running into a preamp with the volume turned down for for a couple of days...

Nope - vortexbox. sorted now. I hadn't enabled DoP. Doh!

When I play DSD and double DSD from my vortexbox (2.3 build) into my DA8 it reads as a 352 sample rate rather than DSD. Does anyone have any thoughts about what's actually happening? 

I can't find any information about whether the DA8 over/up-samples or not (I presume it does as there's no mention of it being non-over-sampling on the yulong site). Does anyone know if it over or up samples, and if it does, in what way?

Thanks for this review. I've been lurking around head-fi for a couple of years and I'm incredibly impressed with your work - it's clear and concise and really well informed and leaves a lot of the big-name hfi writing in the dust.   I listen to a lot of vinyl but am listening to more and...