Subwoofer Reponse Trick/Musings

Discussion in 'Archived Threads 2001-2004' started by Mike OConnell, Sep 14, 2002.

  1. Mike OConnell

    Mike OConnell Second Unit

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    Location:
    Overland Park KS
    Real Name:
    Mike
    Receiver: Denon 5800+
    Subwoofer: Velodyne HGS-18

    I always seemed to be frustrated that during extended soft passages on TV, music, or movies that my subwoofer would "go to sleep" due to lack of a signal below the 80 HZ crossover that I employ.

    When I got my 5800 back from the upgrade I went through the audio calibration with my dB meter and relized that I was always turning the output from the receiver to the sub down by 4 or 5 dB in order to calibrate at the 75 dB level.

    A light then went on in my brain to turn down the manual volume on the sub and increase the receiver output to the sub to around the plus 2 or 3 dB range.

    This has allowed my sub to stay "on" and be more quickly ready for the responses to low frequencies in the movies/music/TV without changing the sub's output.

    The low frequencies were there, but the sub's auto-on circuitry was not sensitive enough to the very "soft" low frequencies.

    Yes, I could have taken the sub off of the auto-off circuit, but this was another route to solve the problem.

    Mike
     
  2. Michael Roderiques

    Michael Roderiques Stunt Coordinator

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    Mike

    What you have done is the recommended fix for the auto On/Off issue you encountered on Velodyne sub-woofers. It actually works for a number of sub-woofers.

    In addition to this, the use of a “Y” adapter at the sub-woofer feeding signal to both left and right inputs helps to reduce this situation.
     

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