Originally Posted by ComradeDylie
Yeah its already been done, the starting point was a hifiman he-5. Go check out the CodeX by LFF.
Apparently its supposed to blow everything right straight out of the water. The best closed back phone, Paradox Slant is made by the same guy. Makes sense that he'd be the one to do it, since there are tons of modded t50rps but his are the best. I bet the alpha dogs come close to the original paradox but the slant is supposed to take soundstage to a new level while keeping the paradox's signature neutrality. Ive got a slant on the way =)
The issue with CodeX and all other LFF modified headphones is that owners are heavily discouraged from disclosing the actual modifications to the public, so in effect those mods are sold, not shared.
The mods I post around here are fully 'open-source', anyone is welcome to try, criticize, tweak, do partial steps, or do additional steps, we're all just headphone owners trying to collectively squeeze the most out of our cans.