PRV Audio 15W1000 v2 15" PRO AUDIO WOOFER WEATHER RESISTANT – Droppin HZ Car Audio
Rockville K5 W15K5S4 15" 2000w 4 Ohm Car Audio Subwoofer Sub 500w RMS CEA Rated! - Walmart.com
SkyTec MAX15SUB Subwoofer Complete Set, 1500 Watt Peak, 2 x 15 Inch Woofers, 1 x Amplifier, Speaker Cable, Woofer, Bass Boxes for Integration into a Sound System, Sound Boxes : Amazon.de: Musical Instruments & DJ