Memphis Audio MB1024 10" component subwoofer with selectable 2- or 4-ohm impedance at Crutchfield
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VIZIO 5.1.2-Channel M-Series Premium Sound Bar with Wireless Subwoofer, Dolby Atmos and DTS:X Dark Charcoal M512a-H6 - Best Buy
Trinity Audio 15" Subwoofer 2000 Watts - Sky High Car Audio
Focal 8WM Utopia M Series 8" 4-ohm component woofer at Crutchfield
M-1204D 12" Subwoofer
Memphis Audio MB1524 15" MSeries MB Subwoofer with Selectable Impedance, 2 Or 4 Ohms - 500 wRMS - Creative Audio
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