MTX TN12-02 12” 400w Car Audio Subwoofer+Sealed Sub Box+Mono Amplifier+Amp Kit - Walmart.com
Dayton Audio SBA302-BT Sound Bar Amplifier Kit with BT and IR Remote
Amazon.com: XRONG Wireless Audio Subwoofer Amplifier, Audio Bluetooth 5.0 Stereo,2.1 Channel Mini Hi-Fi Class D Integrated Amp 100 Watt x2+100 Watt for Home Outdoor Passive Speakers,Powered Subwoofer : Electronics
JBL BassPro Micro Class D 140 Watts RMS Powered Subwoofer, Amplifier Wiring Kit | eBay
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