A hovering pair of headphones!
A hovering pair of headphones!

After burning in HD800.. I must say that this headphone has BASS. Note that this statement comes from a Denon AH-D2000 owner, a closed headphone which has advantage in bass area compared to the open ones.. so you can figure it out :). I don't have the Denon with with me at the moment but I'm pretty sure HD 800 does not lacking in this area. It's accurate and controlled.
There is no issue on USB at all, just use Wasapi exclusive.. You can check this site
http://thewelltemperedcomputer.com/SW/Players/MC14/MC_Wasapi.htm
Or you're talking about USB DSD files support? Do you have many of that files?
So guys.. what is the expected price of new Sennheiser electrostatic flagship then
.
Actually, I don't know which area could be improved with this HD800 ... I'm very satisfied already with the performance... May be I should get a Luxman amp (may be top choice for SS) or even Leben (may be top choice for Tubes)?

After burning in HD800.. I must say that this headphone has BASS. Note that this statement comes from a Denon AH-D2000 owner, a closed headphone which has advantage in bass area compared to the open ones.. so you can figure it out :). I don't have the Denon with with me at the moment but I'm pretty sure HD 800 does not lacking in this area. It's accurate and controlled.
There is no issue on USB at all, just use Wasapi exclusive.. You can check this site
http://thewelltemperedcomputer.com/SW/Players/MC14/MC_Wasapi.htm
Or you're talking about USB DSD files support? Do you have many of that files?
So guys.. what is the expected price of new Sennheiser electrostatic flagship then
.
Actually, I don't know which area could be improved with this HD800 ... I'm very satisfied already with the performance... May be I should get a Luxman amp (may be top choice for SS) or even Leben (may be top choice for Tubes)?
Yes it does! Listening to Infected Mushroom right now and the bass is HUGE! It is very sub-woofer like, it seems to fill the whole room around you. Impressive... most impressive.
About time some people agree. The HD800's are not bass-light headphones (you want bass-light? go listen to the Sony MDR CD/SA range), it's just since most people are familiar with the sound from the rest of the v - u response toned headphones in the market, they will think these are bass-light. Got to love exaggerated claims and impressions sometimes. 
I can't comment about older HD800 bass. I am talking about mine with S/N > 20000.
I don't know if it is related to earpads, but according to some ppl in this forum (if I'm not mistaken):
http://www.open-end-music.de/vb3/showthread.php?t=5164&page=2
the HD800 bass character indeed is changed in current newer batch.
I have owned 3 variations of the older HD800's right now I'm rocking a 103xxx and these things do have bass. If you don't find them having bass then their is something wrong with the your setup. Most likely amplification.
Mine are 41XX and they bring the bass. Compared them to brand new ones and they all pretty much sound the same. If you scoot on over to the HD800 measurement thread, you'll see that there is no real trend there.
I believe you should've quoted the person above my post lol.
I feel the same way about my HD800 with the SN in the 600s
LoL, I guess I should have. I was in agreement with your post though. 
imo the only reason for lack of bass on the HD800 would be something in your setup (dac, amp, etc not up to snuff) or if you have an old HD800 and the pads are worn. I had no idea my pads were in that bad condition until I got a new one and replaced them.
Mine are 20xxx and the bass is excellent! smooth, powerful and appropriate. I am really enjoying them.
Reminds me of the old vs new HD650 debate. Everyone wanted to believe that newer one is brighter. Well, scale tipped in opposite direction with HD800, whatever. 
Yes it is powerful enough to shake your head... provided it is there in the recording.
Actually the revision 2 HD580's/600's and 650 manufactured after 2005/06 did have a slightly more neutral FR compared to the older versions. This is identifiable by the drivers, white/silver drivers vs the old black/grey felt covered drivers. I do know for sure because I compared the two extensively the HD650's prior to the new revised ones sound's way more warmer and dark. I'm guessing this is where the statement of "veil" came from for the 650's.