15-inch HE BWX low frequency speaker 1508 driver series represent a new level of power and performance for Black Widow loudspeakers. Power handling is increased by 40% over other comparable models. along with reduced distortion and higher overall sound quality. The series includes 12-inch and 15-inch models in both 4 and 8 ohm impedances. The 1508he is best used as the bottom end of a full range enclosure. It has very high efficiency for superior output in the mid-bass and midrange.