The QSC WL212-SW-BK subwoofers offer a powerful yet compact audio solution, measuring only 20" wide and lightweight for easy handling. Delivering an impressive 133 dB SPL peak, they provide wide 140-degree horizontal sound coverage. Equipped with high-power 8" neodymium LF/MF drivers, these subwoofers extend low frequencies down to 62 Hz without needing additional subwoofers. The 3" compression driver features QSC's unique 140-degree multiple diffraction waveguide, enhancing sound dispersion. Innovative, patented side-mounted vent ports double as handles for convenience. The rigging system allows safe, simple stacking of up to 12 units, with a sturdy 10:1 design factor and flexible ground stacking options. Supported by EASE and EASE Focus software, these subwoofers are designed for tri-amplified operation with DSP presets compatible with Q-SYS, SC-28, PLD, and CXD amplifiers. Upgrade your sound setup with this advanced and versatile speaker system, perfect for professional audio needs.