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  1. #1

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    Default Alpine 9880r high pass filter: 12 dB/octave??



    Does the HU's HPF use 12 db/octave slope? Does anyone know? Didn't find it in the manual or anywhere.

  2. #2

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    Bump. Does anyone know?

  3. #3

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    Your hu only lets you select the xover frequency, the slope is default. Typically it would either be 12db or max 18. More likely 12db/oct.

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