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Polk Audio - Monitor XT12 12" 100W Class A/B Amplifier Subwoofer - Midnight Black Home Audio Speakers - Newegg.com
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Polk Audio - Polk Monitor XT12 Powered Sub - 12" Woofer & 100W Class A/B Amplifier, Dolby Atmos & DTS:X Compatible (Midnight Black) - Midnight Black - Polk Audio
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Amazon.com: Polk Audio HTS 12 Powered Subwoofer with Power Port Technology | 12” Woofer, up to 400W Amp | For the Ultimate Home Theater Experience | Modern Sub that Fits in any
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Polk Audio - Monitor XT12 12" 100W Class A/B Amplifier Subwoofer - Midnight Black Home Audio Speakers - Newegg.com
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