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Amazon.com: Harmony HA-P12LS8 Replacement 12" Sub Pro PA 800W Subwoofer/Speaker 8 Ohm Woofer - 90oz Magnet : Musical Instruments
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Amazon.com: Pyramid WH8 8-Inch 200 Watt High Power Paper Cone 8 Ohm Subwoofer : Everything Else
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Amazon.com: 5 Core 8" Full Range Subwoofer Car Audio Speakers, Peak 100W, 4 Ohm Car Vehicle Audio Full Range Drivers, Wide Range DIY Loudspeaker Woofer Replacement WF 8110G : Electronics
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