Dual powered subwoofer

S-299 Mini 4.1 Audio Power Amplifier BT Portable Car and Home Dual-use 4*40W Remote Control Audio Amplifier

Outdoor Portable Wireless Speaker Dual 3 Inches Music Stereo Subwoofer Bass Usb Power Supply For Dancing Party Family Karaoke

2.1Channel 240W High Power Subwoofer Audio Amplifier Board Dual AC2226V

Cars Auto Parts Motorcycle Car Audio Stereo Dual Power Amplifier Board Channel TDA7297 12V AC/DC

Subwoofer Amplifier Dual Channel Digital TPA3116D2 Power Amp Board for Home Theater HiFi O

SUB-002 Subwoofer Power Amplifier Board 22Hz-300Hz 1 Channel Mono Audio Sound Amplifier Dual DC-12V

TDA7297 AC/DC 12V Car Motorcycle Dual Channel Audio Stereo Power Amplifier Board

DX-2.1 Large Power Audio Amplifier Board Channel High Power Subwoofer Dual Home Theater AC18V-24V