Amazon.com: MTX TN8MS Terminator 8 Inch Micro Compact Amplified Subwoofer Enclosure for Small Vehicles with Class A/B Amplifier, Variable Bass Boost, External Bass Control, and Smart Engage Auto Turn On Circuitry :
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MTX TR8PT Terminator 360W 8" Active Sub Subwoofer Enclosure Box Car Bass Tube | eBay