REW Impedence measurement QMS and QES are way out -Please help

Peregrine

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You have made several attempts to measure T / S parameters. I'm talking about the average between them. If it is 9.55 g, then the weight of all weights should be 8.3-8.6 g. If we divide it into 4 weights, we get 2.15 g, one out of four.
Each measurement yielded the same Mms result of 9.55g for the 6 inch driver. Thus the average remains 9.55g? Am I missing something.
 

Peregrine

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Can air pressure have an impact on measurements? Where I am in Johannesburg is 1700m above sea level.
 

jschwender

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Mar 16, 2021
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My AV System  
Front Speakers
Nubert digital pro
Other Speakers or Equipment
Philipd dss940
Is the result depend on the sweep length in use?
 

sm52

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Mar 14, 2019
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Peregrine,
I think yes. But not dramatically. A little. Accuracy is most dependent on the selected weight. The mass should be measured with two decimal places. With accurate scales.
 
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