4 Inch Bass Radiator Passive Speaker Aluminum Brushed Low Frequency Loudspeaker Diaphragm Plate for Metal Wire Drawing Speaker

About this item The low frequency response point extends lower. The design uses a smaller size of bass unit, which makes the bass more accurate and better separation. It is suitable for all kinds of speakers and other devices. It has low frequency depth, fast of speed, low wind noise. The bass radiator is also call passive speaker. It is used to replace the inverted tube. Speaker Diaphragm Auxiliary only, other accessories demo in the picture is not included!