Help with audioTester 3.0, determining Vas

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Hi

I' m measuring my first speakers, I'm using the very nice AT 3.0 tool
The first measurement seems correct
But the second measurement indicates that the Vas is 0.05 . I am using the added mass method.
I tried two speakers, with different added masses but no luck. The firs speaker that was 4" measured 0.00 Vas (5g and then less)

The first measurement (no added mass)
An externally hosted image should be here but it was not working when we last tested it.



The Second measurement (10g added)
An externally hosted image should be here but it was not working when we last tested it.



The Setup
An externally hosted image should be here but it was not working when we last tested it.



Any thoughts on this?
A
 
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Status
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