The SL-SUB and SL-GSUB cardioid subwoofers are purpose-built to complement the GSL and KSL Systems. Designed with professional audio applications in mind, the SL-SUB features integrated rigging hardware to support flown arrays of up to 14 units, while the SL-GSUB is strictly intended for ground stacking. Both models are actively driven, two-way bass-reflex designs, each equipped with three high-performance 21-inch neodymium drivers. Two drivers project forward, with one rear-facing unit, each operating within its own bass reflex chamber and powered by independent amplifier channels. This configuration achieves a cardioid dispersion pattern that significantly reduces rearward sound radiation, enhancing low-frequency clarity and minimising reverberant field excitation. Frequency response ranges from 33 to 84 Hz for the SL-SUB and 30 to 65 Hz for the SL-GSUB. Constructed from marine-grade plywood with a durable Polyurea Cabinet Protection finish, each subwoofer includes robust metal grilles, water-repellent acoustic fabric, integrated handles, stacking aids and heavy-duty rear wheels.
Large format cardioid subwoofer
- Components 3 x 21″
- Dispersion Cardioid
- SPLmax 144 dB
- Weight 132 kg / 291 lb