What I tried to say about EQ was that I don't know how to set equalization in a way to either increase or decrease transparency. Sorry for not being clear.
You mean, sorry for not being transparent?

I think that transparency can be added to the objective part of the sound. No way to change it if not by removing the foam which covers the drivers for example.
A question, how would you relate transparency to soundstage? I did not understand if also something with a flat soundstage (where you can clearly feel that the sound comes from something two cm from your ears) can be transparent as far as it is not muffled, as far as there is not the feeling of a courtain between you and the headphone, or if transparent for you is a sort of better soundstage, the feeling of sound coming from the room and of nothing between you and the sound.
In the first case, the ATH are transparent to me. I think that transparent in that case is not too different from what I call detail. I see it like when you have a glass, it can be transparent and you see all details, or you can breath on it and you do not see much anymore.
@Giogio the bolded section is what I was seeing more information on... thanks!
Man, you are definitely confusing me!
We were talking of the M2 not being good for Classical music, so I was answering for that. Now I understand, you mean about your post with the list.
So... I've said that because I thought that transparence was like a soundstage with no feel of headphone at all. So supposedly the best ones are the Def Tech.
Although the "apparence" is tricky, being highly subjective.
So, if transparence is more related to detail than to soundstage, then I have no idea. Because I have no idea how detailed the Senny M2 are.
@n00b2, which one was more detailed to you? Def of m2? A guy wrote somewhere that the Def sounded not very detailed to him.
And if transparence is just, well, transparence, then I have absolutely no idea.
Having never tried any grado, I cannot be sure of what you mean, so I cannot tell you which ones in my list are more transparent.
But I can tell you which ones are more detailed: ATH, AKG, Sennheiser Urbanite grade 3, pendulumic fidelio HK and plantronics grade 2.
Btw, what is this sennheiser m2bt?
And why on earth are you ever possible contemplating the sennheiser mm400???
Now, another question, is there a grade 0? Did you say bassiness 1 because bassiness is for you not extremely important but more important than midness and highness which would be grade 0 to you?
Or did you just forget to specify how you like mids and highs?
Is the sound signature of no importance to you? I mean, they are all very much different sounding headphones.
Btw, I think that on Amazon there is a seller which sells them for 260 + 17 shipping.
In Ebay the seller at 240 has got 4 negative references in the last month saying that he faked tracking number and never shipped anything or did it after weeks or cancelled the order. You are still protected by Ebay/Paypal, so if you are not in a hurry, it could be worth trying. He even offer the "make me an offer" option. Who knows, maybe you get it for 230.
Of course, there are the import taxes then, i think.
But, hey, 230 or 240, even with the import, they are definitely worth more than that.
When I will listen to Parrot, 1ABT, Momentum and Def and Denon, I will tell you more.
Cheers.