I fully agree with the above post by bjorn154.
I recently got a pair of the JM Editions XTC-2 open backs. They are superb hheadphones. The ordering process is unique in my experience. You can actually hJM tune the headphone to your sound preference. Build quality is also superb.
I have had many headphones including a few TOTL.
The JM XTC2 is the finest set of headphones I have heard. I attribute that to the great communication with John regarding preffered sound.