The 300-Watt NEKKST K10S Studio Subwoofer’s unparalleled, world-class performance is the result of a major collaboration between Behringer audio engineers and loudspeaker master-designer/founder of KRK – Keith R. Klawitter. This incredible audiophile-grade subwoofer is ideal for all critical listening environments thanks to the custom-engineered bridge-mode amplifier that drives the 10" glass-fiber woofer for rich, deep and tight bass.