VH Audio Spectrum (copper). $400/pair direct with a 60 money back guarantee. I can't imagine you will return them.
Incredibly transparent and open.
In my system (Modwright SWL 9.0SE, Modwright Sig. Truth Platinum Sony 999ES, CJ MV60SE, and Aural Acoustics Model B) I found them to be better than Oritek X-2s and Nordost Quattro Fils.
I'll post a review in a week or so.