8pcs Speaker Port Tube Sponge Speaker Bass Air Duct Plug Noise Reduction for Sound Box Speaker Cabin

Feature: 1. Improved Sound Quality: It functions by using its sponge to reduce standing waves caused by speaker vibrations. This effectively diminishes wind noise and humming, enhancing the mid and bass sound experience. 2. Enhanced Low Frequency Response: With an emphasis on providing better bass reflex effects, the air duct plug improves the low frequency response of a wide range of speakers. 3. Wide Compatibility: This sponge plug is suitable for various types of speaker enclosures, including modified sound boxes, home speakers, car speakers, portable speakers, and PA DJ subwoofers. 4. Selection: For optimal performance, choose a sponge diameter slightly larger, by about 5mm, than the inner diameter of your speaker port tube. This ensures the sponge plug is securely held in place, offering a stable and effective sound improvement solution. 5. Simple Installation: Installing the speaker bass air duct plug is straightforward. Simply select the right sponge size based on your speaker's port tube sizes and insert it into the end of the speaker port. Specification: Item Type: Speaker Port Tube Sponge Material: Sponge Product Size: Approx. 55x50mm / 2.17x1.97in Package List: 8 x Speaker Port Tube Sponge Note: The sponge is produced through a stamping process. Slight error in product size is normal.