Speaker Port Tube Sponge Bass Tube Foam Plug 2pcs 55mm x 50mm for Minimizing Standing Waves Enhancing Bass Response for Speaker Subwoofer DIY

[Main Function] The speaker port tube sponge helps minimize standing waves caused by speaker vibrations, lowers wind noise and buzzing sounds, and effectively enhances mid-bass performance. [Enhance Bass Response] This port tube sponge plug offers improved bass reflection for speakers, boosting the bass response of many speaker types. [Universal Compatibility] The speaker guide tube sponge is suited for upgraded speakers, home speakers, car speakers, portable speakers, and subwoofers. [Easy Installation] Simply place the sponge into the speaker port tube to improve sound quality. The diameter is 55mm and the height is 50mm. [Choose Right Sponge Size] The sponge diameter should be roughly 5mm larger than the inner diameter of the speaker port tube, allowing it to fit securely in the port tube