In my lpinion this subwoofer is trhing to compete with direct internet sales of subwoofers that are built alot better then this sub the cabinet is cheap and not as heavy as it would be if it was build the way a quality sub is built. And for the money it should have more then 400 watts of power. And the lfe channel does not bypass the crossover all the way.therefore you have to turn the crossover freq knob all the way up and then it dosent play as low as you think it is but it is loud until u can hear the cabinet play withh the music. Dont compare to svs pb 12 plus.