So ye, you raised the treble and bass to get closer to that V-shape sound you have in your DT990 ;)  I don't know if the DT990 are more/less detailed than the X2 but you seem to prefer that sound signature at least. 

From what I've read brighter headphones might appear more detailed than darker headphones.  What kind of eq changes did you do?

Any FR graph out there? 

  Even more places out of stock now. I think I missed my chance on the lower price.  

Is there going to be a Fidelio X3 sometime soon? I've noticed the price has gone from 280$ to 210$ in Sweden the past few months.  And a few places has stopped selling them. 

I have also had a similar experience in upgrading headphones. Not these in particular though.   Paying twice the price compared to my old headphones my expectations were high. So when I only got a marginal difference I was also disappointed.    After some more listening I started hearing...

Anyone has a pic of the white COP's with velours?   White ones are a bit cheaper and I think they would look cool. 

Yeea! Thanks for that, owe you one!

Received the shell kit today....and the nozzle fits!! =D  The rest of the parts look identical to the real IE 80.    Replaceable cable, replaceable everything, as long as the driver doesn't break these can last forever.  ...

Well the COP and DT 770 can't be folded either....Same with Mad Dogs

I think it comes down to whichever one you think sounds better.  COP has more bass and less treble.    I wouldn't think the difference in isolation would make much difference, especially in a library.    DT770 should be more comfortable because of velour pads.  But you can change the pads...

  Would if I could but...   Quote:

Woaa that's awesome! And just 20$ as well   Ye, if the nozzle doesn't fit it's useless of course. But I see no reason why it shouldn't... I think I will try. It would suck to have to throw away a pair of 300$ IEMs

Hi 5 could you make a quick comparison with your X2? I'm interested to know if they have more/less bass and treble.    I wish Tyll would measure these soon....

Nozzle came off while working, I have no idea where it is.  It doesn't seem broken inside though. Any ideas how to fix this? Attach a nozzle from a cheaper IEM?   I contacted Sennheiser but since I bought them 4 years ago, they probably wont repair it, or send me a new nozzle. Lets hope...