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Amazon.com: HERTZ SPL Show Series SV-200L 8 in. (200mm) SPL 4-Ohm Woofers (Pair) : Electronics
Amazon.com: BOSS Audio Systems CXX8 8 Inch Car Subwoofer - 600 Watts Maximum Power, Single 4 Ohm Voice Coil, Easy Mounting, Sold Individually : Electronics
1 Plug & Sound S-84 Speaker 20 cm Woofer 200 mm 8 Inch 75 Watts rms 150 Watts Impedance Max 4 Ohms Sensitivity 92 DB Car Doors Black Pack of 1 : Amazon.com.be: Electronics
Amazon.com: Visaton Full-Range Speaker 8 cm (3.3'') 8 Ohm 15W 100-V System : Electronics
1 x Woofer Compatible with CIARE HW131 HW 131 13 cm Diameter 130 mm 70 Watts Nominal 180 Watts Maximum 8 ohms, 1 piece : Amazon.com.be: Electronics
Amazon.com: Visaton W170S-8 6.5" Woofer with Treated Paper Cone 8 Ohm : Electronics