DAS Audio ALTEA-S15A, 15-Inch Powered Class D Subwoofer - Black Hosa GXX-144 It can also be used

It can also be used like a traditional ADJ O-Clamp to hang smaller fixtures under 28 lbs

The Pioneer XY-218HS is a Dual 18” Horn-Loaded Subwoofer

Inner measures:  29″ x 14

Each 22-inch stackable cube has a base for your lighting to stand on up to 3 levels

DAS Audio ALTEA-S15A, 15-Inch Powered Class D Subwoofer - Black Hosa GXX-144 It can also be usedThe ALTEA S15A is a compact yet powerful active subwoofer with a bass reflex design that delivers deep frequency response and impressive sound pressure levels. The 15 DAS 15FW4 woofer boasts a high quality construction with a 3 voice coil and die cast aluminium basket, allowing for high excursion and a power handling of 600 watts AES. An optimized ventilation system enables a high sustained load with extremely reduced power compression. The woofer is