| 21. | Typical 12-inch woofer is $ 199.
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| 22. | In most cases the woofer and its enclosure must be designed to work together.
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| 23. | There have been good and bad woofers made with every type of cone material.
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| 24. | From the woofer structure, the heat is eventually dissipated into the surrounding air.
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| 25. | One feature of the Reference line is the use of the trademark Cerametallic woofers.
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| 26. | The 375 shared the same basic magnet structure as the D-130 woofer.
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| 27. | At the time the concept of a sub-woofer was in its infancy.
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| 28. | This resulted in woofer cabinet exit points being at opposite sides of the stack.
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| 29. | The specifications read that the woofer is 33cm ( 13 " ) in diameter.
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| 30. | Raising the woofer increases the height of the column so lowering its resonant frequency.
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