Fosi Audio M03 200 Watt TPA3255 Subwoofer Amplifier Mini Mono Channel Audio Power Amp for Home Theater Full-Frequency and SUB Bass Switchable with 32V/5A Power Supply : Amazon.ca: Electronics
Facmogu ST-838 2.1CH Subwoofer Amplifier Audio Stereo Bass Amp, RMS 20Wx2+40W Class D Amplifier with Subwoofer Output, 80W Mini Sub Bass Amp Digital Power Amplifier with Power Adapter - Silver : Amazon.ca:
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Sound Town Class-D Plate Amplifier for PA DJ Subwoofer Cabinets, 700W RMS, w/LPF (STPAS-800D) : Amazon.ca: Musical Instruments, Stage & Studio