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Amazon.com: KICKER TRTP 8-inch (20cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant : Electronics
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Kicker 48TRTP82 Sealed downward-firing enclosure with CompRT® 8" shallow-mount subwoofer and passive radiator at Crutchfield
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Kicker 48TCWRT82 Truck-style sealed enclosure with single 8" CompRT® subwoofer and passive radiator at Crutchfield
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Kicker 47TRTP122 Car Audio Down Firing 12" Thin Sub Box Passive Radiator Bundle with Harmony HA-A400.1 Amplifier &...
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Kicker 48TRTP102 TRTP 10-inch Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm - Creative Audio
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