Looking for someone to mod K712 Pro to balanced... | Headphone Reviews and Discussion - Head-Fi.org
AKG K712 balanced mod would also work on K701 K702 and similar models - YouTube
AKG K712 Pro Open-back Mastering and Reference Headphones | Sweetwater
Amazon.com: K702 Coiled Audio Cable with 2.5mm Balanced Male Replacement for AKG K240, K240S, Q701 Headsets, Works on M11 Plus, M15, M17 Digital Audio Players 4ft to 14ft : Video Games