Scosche HD6903 - 6" x 9" 3-Way Car Speakers (Pair): * 3-way design * Injection molded polypropylene cone * Durable rubber surround * 4 OHM impedance * 450W max (90W rated) * Oversized 20 oz trontium magnet * 1" copper-wound voicecoil * 25HZ-20KHZ (-20 DB) frequency response