Active ultra-linear 10" studio subwoofer with an output of 300 W and a high-excursion woofer, which was designed by Keith Klawitter, founder of KRK Systems. It features powerful amplifier with bridge mode for precise reproduction of low frequencies, 10" woofer cone with glass fiber, resistant to distortion, low-pass filter, phase switch and composite cover with high density for low diffraction and reduced low-frequency distortion. It also offers stereo inputs, direct line output for connection with stereo monitors, balanced XLR and unbalanced TS jack and RCA connectors, and "Earth Power" 100-240 V AC power supply for maximum flexibility, low power consumption, noise-free-audio and good transient response.