Typical subwoofers radiate sound in every direction. This creates undesirable low-frequency build-up onstage and wastes energy. The QSC K Cardioid powered subwoofer solves this problem. It redirects the energy forward, minimizing low-frequency clutter behind the system. In fact, the K Cardioid subwoofer produces 15dB more output at the front than at the rear. The QSC K Cardioid powered subwoofer features a dual sixth order bandpass design, efficient Class D amplifier, and the latest DSP technology to ensure top-notch sound and maximum low-frequency response.










