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correct method to adjust levels for a sq system! Maybe I made a mistake!
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<blockquote data-quote="ThxOne" data-source="post: 8872659" data-attributes="member: 675210"><p>I think the 90° cal file is if you have the mic point up to the roof of the car or room. IASCA will sit in a car and evaluate the SQ @ aprx. 90db. Setting your tune between 85-95db would be a good idea.</p><p></p><p>Pure SQ with no distortion would require a lot of amplifier power and using 0db tones to set the gains.</p><p></p><p><strong>A loud and still good sounding stereo would use -5db tones for mids and highs and -10db on subs.</strong></p><p></p><p>Loud but with some mild distortion -10db mids and highs -15db subs.</p><p></p><p>AFTER THE GAINS ARE SET!!! </p><p></p><p>Measuring with pink noise. I like to sit in the car with ear plugs so your body mass can be accounted for, in the drivers seat, using the 90° cal file, volume at 85-90db, using REW with the mic facing up, move the tip of the mic at ear level slowly around my head ear to ear 6 or 8 times to get a good average. You can do this for each speaker or set of speakers or all speakers at once. Reference DB's from your mids.</p></blockquote><p></p>
[QUOTE="ThxOne, post: 8872659, member: 675210"] I think the 90° cal file is if you have the mic point up to the roof of the car or room. IASCA will sit in a car and evaluate the SQ @ aprx. 90db. Setting your tune between 85-95db would be a good idea. Pure SQ with no distortion would require a lot of amplifier power and using 0db tones to set the gains. [B]A loud and still good sounding stereo would use -5db tones for mids and highs and -10db on subs.[/B] Loud but with some mild distortion -10db mids and highs -15db subs. AFTER THE GAINS ARE SET!!! Measuring with pink noise. I like to sit in the car with ear plugs so your body mass can be accounted for, in the drivers seat, using the 90° cal file, volume at 85-90db, using REW with the mic facing up, move the tip of the mic at ear level slowly around my head ear to ear 6 or 8 times to get a good average. You can do this for each speaker or set of speakers or all speakers at once. Reference DB's from your mids. [/QUOTE]
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correct method to adjust levels for a sq system! Maybe I made a mistake!
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