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Alpine - R2-W10D4 Subwoofer de nova geração da série R de 10" (25 cm) com bobina de voz dupla a 4 ohm
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Different types of subwoofer boxes and their purpose (Bandpass, Ported, Sealed) | Subwoofer box, Subwoofer, Car stereo systems
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Amazon.com: Alpine R-W10D2 Car Audio Type R Series Sub Dual 2 Ohm 2250W Peak 10" Subwoofer and HA-SWKD Dual Subwoofer Sub Box Install Kit : Electronics
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