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AR-4x Crossover


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The attached jpg is what I believe to be the correct crossover for the AR-4x. One of my two units contained a smaller woofer coil (0.88 mH, AR-#4). Only one other Forum member found a similar problem (three with #4 and one with #5). Crossover calculations for this driver with a series inductor yielded 1,200 Hz for the #5 coil and 2,000 Hz for the #4 coil. I assume that the smaller coil was used in the AR-4, which had a 2,000 Hz crossover frequency and was an assembly error.

The 0.65 cu. ft. cabinet with the correct coil contained 12 oz of Fiberglass--the same vol./wt. ratio as the AR-3a).

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