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Amazon.com: JBL Stadium 122SSI - 12" (300mm) high-Performance car Audio subwoofers, 500W RMS, 1500W Peak, Sensitivity (@ 2.83V): 92dB, Frequency Response: 25Hz – 175Hz, Impedance: 2 or 4 ohms : Electronics
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Amazon.com: JBL Stadium 1224 - 12” Subwoofer w/SSI™ (Selectable Smart Impedance) switch from 2 to 4 ohm : Electronics
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Amazon.com: JBL Club WS1000 10" Shallow Mount subwoofer w/SSI (Selectable Smart Impedance) Switch from 2 to 4 ohm Bundled with Alphasonik Earbuds : Electronics
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Amazon.com: JBL Stadium 1224 - 12” Subwoofer w/SSI™ (Selectable Smart Impedance) switch from 2 to 4 ohm : Electronics
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