12 150W RMS (450W Peak Power Handling) Built-In Amplifier Car Powered Subwoofer System with Slipstream Port Technology
DS18 Mach-E 8-Inch Underseat Amplified Subwoofer; 800 Watts SQBASS8 (Universal; Some Adaptation May Be Required) - Free Shipping
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MA AUDIO 1600W 10 Active Amplified Subwoofer - Active Bass Boxs - Car Audioz - Audio In-Car Entertainment in Peterborough
JL AUDIO Amplified Subwoofer System with Dual 8W3v3-0.40 Subwoofers, Built-In 500W Class D Amplifier (ACP208LG-W3v3)
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Discontinued Obsolete SKU MTX - Serious About Sound®
Wooden amplified subwoofer 18 39 39 2000W DSP SA3118 Audiocenter
BOSS BAB8 8 800W Amplified Subwoofer System with Enclosure
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10 120W RMS Power Low Profile Amplified Subwoofer - Diamond Audio - Diamond Audio