The MA-90 is a professional precision T-Bar style mount designed for A/B, ORTF and other stereo microphone placement techniques. The microphone clamps slide and rotate on a bar marked with angles of ± 45 ° and spacing up to 200 mm on each side. The positions of the microphones are continuously adjustable and have engraved detented scale markings for exact, repeatable settings every 15 ° and 10 mm. It is also lockable at any desired point in-between.

The MA-90 features a black electrostatic finish and can be stand mounted or hung for easy set up.