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Gladen GA-130RSX-3 13cm woofer speakers
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Amazon.com: Lanzar 12in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Steel Basket, Dual 4 Ohm Impedance, 1600 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System -
Wavecor WF146WA05 13 cm mid woofer 4 ohm
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1 MASTER AUDIO CW500/4+4 Subwoofer Diffuser Speakers 13 cm 130 mm 5 Inch Diameter 80 Watt rms 160 Watt Max Double Coil 4+4 Ohm, 1 Piece : Amazon.com.be: Electronics