Our SS7748 Air-Lift Speaker Pole features an integrated mechanism that provides assistive power, making it safe and ergonomic for one person to raise and lower a heavy speaker. This shaft mounts to the top of a sub cabinet to support speakers with standard pole-mount sockets, without using a separate floor stand. The mounting pole's adaptable threading at the base connects to subs with either an M20-threaded socket or a standard unthreaded socket. | On Stage Stands | | On-Stage SS7748 Airlift Speaker Pole | Black | Best Buy