I'm looking to sell my Enigmatic Audio (aka LFF) Paradox headphones. Bought in March 2016 from @nicolasmasset (original For Sale thread), I've babied the headphones and they are in mint condition.
The Paradox is a T50RP mod, with a balanced sound and excellent tonality. I consider them to be reference headphones. They provide very accurate reproduction which is not surprising at all since Luis Flores designed the Paradox for personal use as a work headphone for mastering and sound restoration. Reviews and more info can be found here and here as well as scattered around the forums.
These are also supremely comfortable and work great for extended wear, especially with the leather strap I've installed.