Pro X Speaker Pole Mount Adjustable 38″-54″

The ProX T-SAA-M is exactly what you need for
your subwoofer-speaker PA system. It’s adjustable in height from 38″ to
54″ and mounts between a subwoofer cabinet with a top mounting hole and
a speaker with a bottom mounting hole sized at 1 3/8″ (35mm). The T-SAA-M features both a friction locking knob and a security pin system and is made from durable steel.

Holds up to 120lbs