The QSC KS212C is a first-in-class compact, single-box cardioid subwoofer designed to deliver powerful, focused low-frequency performance with reduced rear-stage noise. Powered by a 3600W Class-D amplifier, it features dual 12-inch long-excursion drivers in a dual 6th-order bandpass design, producing deep, impactful bass with up to –15 dB rear attenuation for cleaner stage environments.

QSC’s TFR™ (Turbulent Flow Reduction) port design optimizes airflow and resonant tuning for maximum efficiency and clarity. A variable crossover and user-saveable/recallable Scenes allow easy system configuration for different applications.

Built with a rugged painted wood enclosure and a refined professional appearance, the KS212C is suitable for touring and installations alike. It can be deployed vertically or horizontally and includes an M20 pole mount with a 36-inch speaker pole. An optional KS-LOC security cover prevents unauthorized adjustments. Backed by a 6-year warranty upon registration, the KS212C offers advanced cardioid performance in a compact footprint.