uxcell 2Pcs 3 Inch 70mm Bass Speaker Passive Radiator - Rubber Vibration Plate for Subwoofer DIY Repair & Replacement - Perfect for Car Audio, Home Theater, and Speaker Upgrades
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Description
Features：Bass radiator, also known as a "drone cone", for replacing the inverted tube or subwoofer with the radiator and the traditional back subwoofer.A passive radiator system uses the sound otherwise trapped in the enclosure to excite a resonance that makes it easier for the speaker systemAir turbulence noise is no longer an issue, when air rapidly escapes the pipe at high volumes.No more high frequencies out the port.Passive radiators operate in conjunction with the active driver at low frequencies, sharing the acoustic load and reduce the excursion of the driver.Working similarly to a vent, the passive radiator will only add as much as they subtract. Specification:Material: Rubber, Iron (metal plate at the middle)Color: BlackOuter Diameter:70mmInner Diameter:46mmHeight:4.5mm Package Content：2 x Speaker Radiator
Features
A passive radiator system uses the sound otherwise trapped in the enclosure to excite a resonance that makes it easier for the speaker system
Bass radiator, also known as a "drone cone", for replacing the inverted tube or subwoofer with the radiator and the traditional back subwoofer.
Air turbulence noise is no longer an issue, when air rapidly escapes the pipe at high volumes.No more high frequencies out the port.
Passive radiators operate in conjunction with the active driver at low frequencies, sharing the acoustic load and reduce the excursion of the driver.
Working similarly to a vent, the passive radiator will only add as much as they subtract.
