Amazon.com: Arylic Subwoofer Amplifier Board,WiFi & Bluetooth Home Audio Amplifier Board for DIY Speaker Kit.Wireless Connection Multiroom/multizone Sync Play for Airplay DLNA - Up2stream Amp Sub : Electronics
Amazon.com: Audiopipe APSB-1299PP Dual 12 Inch Car Audio Subwoofer Speakers and Sealed Enclosure, 2 Channel 500 Watt Amplifier, and Wire Installation Kit : Electronics
KICKER 43TC104 Comp 10" Subwoofer In Sub Box Enclosure+Amplifier+Amp Wire Kit - Rockville Audio
Amazon.com: Alpine SWT-12S4 1000 Watt 12" Car Audio Bass Tube Subwoofer Bundle with Amplifier and Amp Kit : Electronics
Amazon.com: BELVA BPKG212v2 1200W Dual 12" Car Subwoofer with Ported Enclosure, Monoblock Amplifier, Wiring Kit and Remote Bass Knob : Electronics
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
Amplifier Board - AIYIMA B2D1075 | 2.1 Channel High Power Subwoofer Am