POLYPROPYLENE WOOFER WITH RUBBER SURROUND; 25MM POLYPROPYLENE CONE MIDRANGE; 20MM PIEZO DOME TWEETER; IMP: 8_; NON-REMOVABLE ALUMINUM GRILL; ROTATING LOGO FOR VERSATILE MOUNTING OPTIONS; UV TREATED ABS ENCLOSURE; INCLUDES MULTI-ANGLE MOUNTING BRACKETS; WHITE; 4" WOOFER; FREQ RESP: 100 HZ–20 KHZ; 50W RMS & 100W MAX POWER; SENSITIVITY: 86 DB