The ST-218S is a high-efficiency, high-power subwoofer designed for tour sound, large venues or outdoor events. Dual Fane 18” (4” voice coil) LF drivers combine to bring the detail and presence of the ST-118 models with the advantages of increased SPL output, an incredible 134 dB continuous, and low frequency extension down to 27 Hz. The ST-218S can be used singly or in multiples through ground stacking in horizontal or vertical orientation. It is an excellent choice where powerful punch and faithful bass reproduction are requisite.
The enclosure is constructed from 18 mm and 24 mm exterior grade, void-free birch plywood and finished in touring grade, black HardTex paint. A strong black powder-coated steel grille with hexagon pattern and acoustic mesh backing protects the front of the cabinet. The cabinet also features a 35 mm pole mount adapter with M20 screw fitting, shaped recesses for safe stacking with other ST series models and four flush side handles along with four quick release castor plates on the rear of the cabinet for ease of handling (fits widely available castors, not supplied).