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18LEX1600Fe, 18″ Pro ferrite subwoofer 3200 W, 8 Ohms «
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What are the frequency settings for a subwoofer? I have a subwoofer with 4 different frequency settings. I need powerful, punchy bass. Should the setting be positive or negative? - Quora
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Frequency response in free air of the subwoofer 18sound model 18NLW4500... | Download Scientific Diagram