Alpine BBX-T600 Amplifier and W10S4 10-inch Single 4 Ohm Subwoofer - Includes wire kit - Creative Audio
Planet Audio 1800-Watt Subwoofer plus Boss 1500-Watt Amplifier with Amp Kit plus Q-Power Enclosure AC12D + AR1500M + AKS8 + QSBASS12-VENTED - The Home Depot
Vistreck 2.1 Channel Subwoofer Power Amplifier Module DIY Kit 50Wx2+100W Treble Bass Control DC 12-24V BT Audio Amplifier Board Stereo Speaker Digital Amp for Audio System - Walmart.com
100W Mono-Channel Class D Subwoofer Amplifier + 8" 150W Pro Series In-Wall Home Theater Subwoofer | Outdoor Speaker Depot