4" 3 way car speaker, IMPP cone, 5.4 OZ Magnet, 20mm ASV Voice coil, rubber edge, RMS 15W, 4ohms. 4" 3-Vías de Altavoces Coaxiales / 3-Way coaxial car speaker systemWoofer cone: IMPP Magnet: 5.4 OZ Voice coil: 20mm ASVEdge: Rubber edgeRMS Power: 15 Watts4 ohms 4" 3-Way coaxial car speaker system