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Memphis Audio M71012 M7 Series 10" subwoofer with selectable 1- or 2-ohm impedance - Breakers Stereo and Performance
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Oak Solid Wood Three-inch Hifi Passive Labyrinth Speaker, 30-80w Subwoofer Speaker, Impedance: 4 Ohms, Frequency : 60hz-20khz - Transformers - AliExpress
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Memphis Audio MB1224 12" subwoofer with selectable 2- or 4-ohm impedance - Breakers Stereo and Performance
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Infinity Reference 1270 12" 1100 Watts Peak Power Selectable Impedance Car Audio Subwoofer - Walmart.com
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Amazon.com: Lanzar 12in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Steel Basket, Dual 4 Ohm Impedance, 1600 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System -
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Memphis Audio MB1224 12" MSeries MB Subwoofer with Selectable Impedance, 2 Or 4 Ohms - 500 wRMS - Creative Audio
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