Dobrescu George
Reviewer: AudiophileHeaven
The Signature PRO and Signature DJ are actually in the Signature line, whereas the DJ 1 and DJ 1 PRO are in the DJ line.
actually this is quite the fun thing. the headphones from ultrasone follow a certain rule. every pro headphone has a sound. every dj headphone has a sound, every hifi has a sound, and editions all have different sound... the thing is that ultrasone groups them more by price than by how they sound. as far as my knowledge goes, dj one, dj onr pro and signature dj are having similar signatures, the same rule goes with pro 900 and sig pro and pro 750.
in this sense, as i understand, dj line has the best soundstage from all, and the others have other pros and cons.