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Old 02-28-07, 08:43 AM   #4 (Link)
 
brucek
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Re: New JL fathom 113 Graphs


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the first is the old analog cal file... the second is with the new digital cal file... i'm just not sure which one to use.
With regard to the cal file for the meter, read this thread here.

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help me with those big dips at 140hz and there is another one at 190hz
Normally we first measure the sub with the mains removed to check its response and then equalize or move the sub around to get the best result. Then we add the mains (as you've done) to see the interaction around the crossover region. Any dips at the frequencies you've mentioned are a mains problem and we don't generally equalize that area. You can try repositioning the mains to help with their responses.

brucek


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