PreSonus Protective Cover for AIR18s Subwoofer (Black) 20-inch The adapter with a tube

The adapter with a tube diameter of 35 mm has a M20 male threaded bolt on the one end and a M20 female thread on the other end

StudioLive 32S

the amp features offers a single 8" speaker and four channels

featuring a thicker than normal coating of the durable Black Satin Finish texture coating

The reinforced outer shell of the case absorbs and deflects hard impact

PreSonus Protective Cover for AIR18s Subwoofer (Black) 20-inch The adapter with a tubeThis black Protective Cover for AIR18s Subwoofer is designed to keep your speaker safe from dust, scratches, bumps, and the rigors of the stage. Constructed of lightweight (at 4. 8 lb) and durable ballistic fabric, this cover features handle cut outs and hook & loop fastener straps to accommodate the casters. Features: Durable ballistic fabric Lightweight at 4. 8 lb Handle cut outs Hook and loop fastener straps to accommodate casters