fivekim 40mm Passive Radiator Subwoofer Speaker Vibration Membrane Bass Rubber Woofers Strengthen bass diaphragm Black

♥1.Bass radiator, also known as passive speaker, is used to replace the inverted tube, the subwoofer made with the radiator and the traditional back subwoofer, ♥compared to the following advantages, low frequency dive depth and backward , But the sense of speed is significantly faster than the back-type. ♥2.possession of a certain tight box advantage, but also completely put an outrageous structure of a drawback - that is, inverted pipe mouth to bring the wind noise. ♥So like dive deep, but the bass speed has a higher demand for friends using the radiation pot made subwoofer is the best choice ♥3.The new and improved Bass radiator, allows you to mass tune the passive radiator to obtain the ideal tuning frequency and additional bass without any additional amplifier power or enclosure volume.