The cardas connectors fit perfectly if that helps?
I have three of the custom cans cables for my little Senn family. Well made, sound nice. I bought them for convenient length than anything else.
Thanks for that. Can you hear much improvement vs. the stock cable? Can you let us know the name and/or the link for the exact connectors you have.
I am feeling the urge to pick up a 540 now.
I didnt like the 540. I found it to be too bass light,but I seem to be in the minority on that one.