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  1. #1

    Member Sales Rating: (11)

    Join Date
    Jul 2001
    Spokane, Washington

    Question subsonic filter for turntables

    can someone explain what the subsonic filter does on a pre amp and why it's important to have/use it when listening to albums.

    it seems modern day pre amps/receivers don't have that subsonic filter... is that a bad thing then?
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert

  2. #2

    Member Sales Rating: (9)

    Join Date
    Sep 2006


    The way understand it, the subsonic filter removes the signal in the lower, inaudible, frequency range. Ever noticed your midrange drivers jumping up and down when you first put on an album? It's designed to tame that. Some people see it as a work around to a problem. I found I didn't need to engage mine after I made certain my platter was absolutely level.

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