The Sub Pole That Helps You Set Up Nobody likes lifting heavy speakers into position before a gig. However, the Ultimate Support SP-100 Lift-Assist Speaker Pole makes it a walk in the park! This adjustable speaker pole comes equipped with an air-powered lift assist that can raise a 25-pound speaker on its own or help you raise heavier speakers with just one hand. There's also a handy expanding cylinder system that fits speaker sockets between 1-3/8 and 1-1/2 inches in diameter — a feature that users around GearNuts certainly appreciate. The pole also features a universal subwoofer adapter with M20 threads. Make setup easy on yourself with an Ultimate Support SP-100B Lift-Assist Speaker Pole.Ultimate Support SP-100B Lift-Assist Speaker Pole Features: Air-powered lift assist lifts up to 25 pounds on its own Expanding cylinder system mounts securely to most speakers Universal thread adapter mates with all subwoofers Oversized tubing promotes years