AKG Varimotion membrane The heart of any headphone or microphone is the diaphragm. It’s the component that handles the challenging task of turning its mechanical motion into the electrical signal that delivers the sound. Varimotion from AKG is a unique technology that allows the production of a diaphragm whose thickness varies along its diameter. With the help of this innovative diaphragm, AKG is able to precisely tune the capsule for the highest level of performance to provide powerful, accurate, clear and feedback-free sound.

AKG flat-wire voice coil technology AKG’s flat-wire voice coil technology is what gives the K702 reference headphones the transient response that delivers amazingly accurate and spacious sound. Conventional voice coils use round wires, but AKG’s flat-wire technology allows the company to build very rigid yet lightweight voice coils, which improves the pulse response. Furthermore, using flat wires provides higher packing density in the magnetic gap, which increases the efficiency because less power is lost to heat.