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Amazon.com: Q Acoustics Q B12 Subwoofer - Featuring Infinite Baffle Enclosure, 12" Driver, 220 Watt Class D Amplifier, 1.97" Voice Coil - Active Subwoofer for Home Theater Sound System (Arctic White) : Electronics
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Amazon.com: Q Acoustics 3060S Active Subwoofer Carbon Black - Enclosure Type: Infinite Baffle, 8" Driver, 150 Watt Class D Amplifier - Powered Home Audio Subwoofers for Home Theater Sound System : Electronics
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Amazon.com: Q Acoustics Q B12 Subwoofer Carbon Black - Featuring Infinite Baffle Enclosure, 12" Driver, 220 Watt Class D Amplifier, 1.97" Voice Coil - Active Subwoofer for Home Theater Sound System : Electronics
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