JBL SRX818S, 18 Inch Passive Subwoofer System Needle Cartridge Case Low and Hi EQ Limiter

Low and Hi EQ Limiter Yes LED Indicators Power/Activity/Limit Feet Yes Flying Hardware 1/4-20 x 5 - 2 (Top)

The On Stage MSA-9502

it boasts a best in class 40 seconds of full burst output

They back up that commitment with a 1 year Warranty on any manufacturing defects in material and workmanship

JBL SRX818S, 18 Inch Passive Subwoofer System Needle Cartridge Case Low and Hi EQ LimiterThe JBL SRX818S is a single 18 subwoofer for concert, touring, or installed use. Featuring a standard M20 pole cup for use with top boxes, indexing feet for stacking in both the standard and cardioid position, and a 136dB max SPL, the SRX818S is an ideal solution for musicians, bands, and DJs, concert use, public speaking, or installations such as performance venues, corporate spaces, educational facilities or houses of worship. Purposeful Design