The outside of each earpiece has a "Window Shade Grill System" that protects the driver and minimizes sound refraction coming back in against the diaphragm.

The combination of materials self-damps to give the revised drive unit a solid, low-resonance base to work from. A new high-purity copper cable completes the engineering content.

Balanced armature drive unit for the headset to provide surging momentum, whether it is the world's best heavy metal;