2 Pack Passive Radiator: 4 Inch Subwoofer Woofer Membrane, Rubber Vibration Diaphragm Plate Replacement Woofer Diaphragm for Bass Speaker Subwoofer DIY Repair

2 Pack Passive Radiator: 4 Inch Subwoofer Woofer Membrane, Rubber Vibration Diaphragm Plate Replacement Woofer Diaphragm for Bass Speaker Subwoofer DIY Repair

• Car Subwoofer Passive Radiator: Suitable for 4-inch speaker, woofer and loudspeaker
• Bass Vibration Membrane: A passive radiator system uses the sound otherwise trapped in the enclosure to excite a resonance that makes it easier for the speaker system to create the deepest pitches
• Speaker Radiator Accessories: Air turbulence noise is no longer an issue, when air rapidly escapes the pipe at high volumes.No more high frequencies reflected out the port
• Woofer Diaphragm Part: Construct with safe materials, this is a bass radiator for DIY speakers to enhance the bass effect
• Woofer Radiator Membrane: Bringing your speaker back to its normal performance