Ground Zero Iridium GZIF 4.0 10cm 2ウェイカー/バン用コアキシャルドアスピーカー 60W RMS

The rubber surround gives these little 4-inch speakers a surprisingly solid bass response for their size, and they fit perfectly in my car's factory cutouts. Only had them a week but the clarity at moderate volume is already impressing me.

Installed these in my van’s dash and the 3D-structured cone handles the mids way better than the stock speakers did. The rubber surround gives the bass some real punch without rattling.

These little 4-inch coaxials fit perfectly in my van's dash, and the lightweight HQPP cone really makes a difference in how clean the mids sound.