The Turbosound Manchester Series MS215 is a passive dual 15" vented bandpass subwoofer that's well suited for a broad range of speech and music sound reinforcement applications in both fixed, portable, and touring audio systems. Designed in conjunction with Lade DSP and Lab Gruppen amplification to provide optimal FOH performance as well as flexibility to readily adapt to varying venue requirements. The subwoofer can be ground stacked and features a four-point rigging system that allows for an array of multiple configurations.