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American Bass XO 1544 15" 1000 Watt Car Audio Subwoofer DVC 4-ohm Sub XO1544 : Electronics - Amazon.com
Amazon.com: Power Acoustik BAMF‐152 BAMF Series Subwoofer (15", 3,800 Watts max, Dual 2Ω) : Electronics
Amazon.com: Infinity REF1200S Reference 12 Inch Low Profile Subwoofer with SSI (Selectable Smart Impedance) : Electronics
Amazon.com: PIONEER 12˝ Pre-Loaded Subwoofer System : Electronics
Altoparlante cassa subwoofer 90 + 90 Watt Max 4 ohm diametro 130 mm CIARE CS130 : Amazon.com.au: Electronics