DS18 PRO-FR69NEO 6x9" Neodymium Full-Range Loudspeaker with Bullet 500 Watts 4-Ohm with Grill car audio stereo speakers
Amazon.com: Timpano 12" Sub D4 2500 Watts Max Power Dual 4 Ohm, 12 Inch Car Subwoofer 23.5 mm High Xmax, TPT-T2500-12 D4, 3 in Voice Coil, Competition Sub Woofer for Car Audio
JBL VRX918SP Powered Active 18" 1500 Watt Subwoofer Sub w/DSP + Presonus Mixer - Walmart.com
JL Audio 12W0v3-4 with JD250/1 Bass Package - 12" W0 Subwoofer with 250 Watt Monoblock Amplifier - Creative Audio