3D Audio Array. Mount for dual-MS mic array, with z (vertical) axis mic. This mount is intended to position two 19 mm cardiod mics (front and rear) and two 19mm figure-8 mics (left/right and up/down). Great for VR applications. Features 5/8" mounting hole for studio recording mic stands. This product is being beta tested with Sennheiser 8040 and Ambient ATE 208 microphones.