Polk Audio MM1042 SVC MM1 Series 10" Marine & Car Subwoofer - 900W, 28-200Hz Frequency Response, Single 4-Ohm Voice Coils, Polypropylene Woofer Cone, Compact Subwoofer for Deep, Powerful Bass
Lanzar 8in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Steel Basket, 4 Ohm Impedance, 600 Watt Power and Rubber Suspension for Vehicle Audio Stereo Sound System - MAX8 (1 Pack)