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Old 19th September 2018
  #71
-1 db at 20 hz means - 2 db at 10 hz. It also adds around 40~60 degrees of phase shift at 20 hz. Roll off at 2 hz and the phase shift will reside below 20 hz. For kick drum and 5 string bass you will hear that. The 3.3 uf mylar cap costs under a buck and it will correct that. For analog tape don't bother, the tape machine will wash out those gains. For digital, you will hear that difference.