uxcell 2pcs Passive Diaphragm Plates for Round Rubber Vibration Diaphragm Bass Speaker Replacement DIY Kit 8 4-inch Woofers, Plates, (Includes Screws)

Subwoofer passive diaphragms generate mechanical vibrations through electromagnetic drive, which, combined with air pressure conduction, optimizes low-frequency power and improves acoustic performance. These woofer diaphragms are suitable for a variety of speaker units, including multimedia entertainment systems, car audio systems, and professional audio equipment. Material: Rubber, Iron; Mounting Hole Spacing: 76x110mm / 2.99x4.33inch; Color: Black; Includes 2 x Subwoofer Diaphragms and 8 x Screws Composite innovations and improved construction have resulted in improved low frequency power. It is easy to use, just attach it to the appropriate position. Please make sure that the size you choose is appropriate. What is it? The subwoofer passive diaphragm generates mechanical vibrations through electromagnetic drive, which, combined with air pressure conduction, optimizes low-frequency power and improves acoustic performance. The woofer diaphragm is suitable for a variety of speaker units, including multimedia entertainment systems, car audio systems, and professional audio equipment. What's included? Material: Rubber, iron; Mounting hole spacing: 76x110mm/2.99x4.33in; Color: Black; 2 x Subwoofer Vibration Membranes. What are the advantages of this product? Innovations in composite materials and improved structure improve low-frequency power. How to use? Easy to use; simply install it in the appropriate position. Please be careful to choose the right size.