It's actually unlocked now: http://www.head-fi.org/t/612256/toxic-cables-viper-sennhesier-hd650-headphone-cable-affordable-hi-fi-review
Of course, they went in and deleted 90% of the posts (including anything interesting, relevant or marginally truthful) before unlocking it again. They really shouldn't have even bothered with the cleanup and unlock, TBH, seeing as the review itself has about as much veracity as something you'd read on 6moons.





























