OnStage SS7746 Subwoofer Pole with M20 Thread - Black ground-support it has an RS-232 port

it has an RS-232 port

Exterior Width:13 "

4 LBS / 2 Kg

Weight: 4lbs

Shipping Dimensions: 36" W × 29

OnStage SS7746 Subwoofer Pole with M20 Thread - Black ground-support it has an RS-232 portThe OnStage SS7746 Subwoofer Pole with M20 Thread Black mounts to the top of a sub cabinet and supports a speaker with a standard pole mount socket without using a separate floor stand. The mounting pole features a removable M20 threaded lug at the base for connection to subs with an M20 threaded socket, a connection method that greatly reduces tilt and wobble. The shaft's height adjusts to accommodate a variety of applications and locks in place to