Infinity sub question

Discussion in 'Beginners, General Questions' started by TonyNoles, Feb 18, 2004.

  1. TonyNoles

    TonyNoles Extra

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    On the back of my Infinity sub there is a phase switch. It says reverse/normal switch to flip audio signal polarity. The phase switch is can be flipped from 0 to 180 degrees. Can anyone explain to me what this means and what settings should be used? Thanks for any input.
     
  2. Bob McElfresh

    Bob McElfresh Producer

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    Sometimes people have:

    - full range speakers
    - funny 'valley' in their room response

    Here is the problem:

    Your main speakers have a woofer. When a low-frequency sound comes from your reciever-it goes to both your main speakers and the sub.

    For some seating distances - the sound pressure wave from the L/R speakers hit your ears first. But you know how the woofer moves out/in/out/in? Sometimes the wave from your L/R speakers are pulling back when the pushing-out wave from your subwoofer hits. This means the two sounds cancle each other out.

    The phase knob is one way to compensate for this. Moving the subwoofer a bit is another.

    Unless you have multiple subs, just leave the phase knob at 0.

    Did this help?
     
  3. TonyNoles

    TonyNoles Extra

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    Thanks for the explanation Bob. I appreciate it.
     
  4. JohnnyG

    JohnnyG Screenwriter

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    Have an assistant flip the switch back and forth as you listen to some bass-heavy material and choose the setting that sounds better to you. If you don't hear a difference, leave it at 0.
     

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