Self-amplifying subwoofer in a wooden cabin with 15 ”woofer. Amplifier 500W RMS class D with limiter and integrated crossover 100Hz for direct driving of self-amplifying satellites. Frequency response 65-150Hz max SPL 122dB and integrated active stereo crossover. Frequency boost adjustment from 40Hz to 90Hz. Balanced XLR inputs, Link out with Balanced XLR, normal or boost setting to boost or not low frequencies & high cut. Bar weight 33kg in black color. It has a nest for a support base.