Amazon.com: Fosi Audio M01-BT Bluetooth 5.0 300 Watt Subwoofer Amplifier Home Theater Full-Frequency Mini Stereo Audio Hi-Fi Mono Power Amp with Bass Gain Control for Passive Subwoofer Speaker Bass Shaker : Electronics
Amazon.com: Facmogu ST-838 2.1 Channel HiFi Stereo Subwoofer Amplifier, RMS 20Wx2+40W Mini Digital Audio Power Amplifier for Home Speakers, 80W Subwoofer Amplifier Audio Stereo Bass Amp with Power Supply - Black :
KGUSS G300 Subwoofer Verstärker TPA3255D2 Klasse-D Audio Mono Leistungsverstärker 300 W x 1 Einkanal RCA Eingang Hoher Ausgang Schwarz: Amazon.de: Elektronik & Foto
PSB-200 Subwoofer Amplifier with Crossover / Phase Control - 200W – Soundavo
Power Acoustik Low Profile 8" Car Subwoofer Enclosure with 600W Class D Amplifier & LED Lighting - Walmart.com