Radio Shack meter corrections??

Discussion in 'Archived Threads 2001-2004' started by JimmyK, Dec 27, 2002.

  1. JimmyK

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    Jim
    Wasn't sure where to post this. Sorry if it's in the wrong place.

    Anyway, I keep hearing statements like "...after correcting for the Radio Shack meter, I acheived a flat response....." but have never seen anything that describes what these corrections might be.

    I have a digital Radio Shack meter that I use to calibrate my system. I am getting ready to set up a new sub and will be using this meter.

    What corrections do I need to know about?

    Thanks.

    JimmyK
     
  2. PaulT

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  3. JimmyK

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    Thanks Paul!

    Can you recommend a good CD/DVD for setup/checking response? I have Avia, Video essentials, and an old Denon CD that has some tones and sweeps (I believe) on it. You think any of these would suffice?

    JimmyK
     
  4. PaulT

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    If you can burn CD's you could download the low freq sine waves from this site in bin/cue format:
    http://www.geocities.com/frequency_wave/
    rename the zip foles to .ace
    or get your own Tone Generator and make your own:
    http://www.nch.com.au/tonegen/
    As far as Calibrating your Sub, there isn't much you can do besides adjust the crossover point to your mains for the smoothest response. I was able to plot the freq response of my sub using 1/6th Octave Tones (sine), however, the Room itself played the biggest part of the curve and without hanging things on the wall or building bass traps (or using EQ) I have to be happy with the way things are.
    It was quite interesting (and annoying to my wife and cat) to do the plots.
     

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