Sennhieser HD 265 sounds like a can, very strange. Check the drivers briefly and look OK.

Very good headphones to my ears, compare to the old DT 990 this DT 811 is smooth. 

To my opininon it should be sound almost similar, but maybe somebody can clarify it.

I wonder is any difference in sound between K-400 and K-401? And what is a difference?

  Thank You for reply. 

  Thanks. Sad news. Could somebody share output settings for Foobar?

The thread is too long so could somebody tell me does T1 MkII support AISO?  

  Thank You for the feedback. Select switches to 10DB position and haven`t heard any noticeable changes, so I need tube rolling and try another headphones. 

Could somebody advise me the gain settings for SENNHEISER HD 280 PRO impedance 64 Om. SPL 102dB? At that moment i use the default gain settings. 

Just connect my brand new Aune T1 MKII to computer and my first impression is absolutely positive. The decision to purchase was based on this thread so I want to say thanks to the starter of the thread. Next step is purchasing some old SU tubes.  

Does EF2A have a gain switch or gain switch available only on EF3? 

Some tubes on russian market don`t have a package so can find info only on the tube. 

  That was a joke, simply i don`t like smiles and other icons. I`m going to purchase some tubes and therefore made some research on my local market so I didn`t see the tube like that and find it very interesting.     

  You are welcome. Tuco looks better to my eyes. 

  Maybe you bought tubes produced for export. As far as i know on local market this tube called 6Н23П (in russian), OTK1 means qaulity contol.  Sorry for double post.