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Multi-Way Conventional loudspeakers with crossovers

Measuring speaker stuff starting with Thiele-Small parameters
Measuring speaker stuff starting with Thiele-Small parameters
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Old 11th January 2019, 11:09 PM   #21
Jack Hidley is offline Jack Hidley  United States
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Measuring speaker stuff starting with Thiele-Small parameters
If you don't want to have to do math to correct your impedance measurements, you can take very accurate impedance measurements with either a pure voltage source or a pure current source. It doesn't matter which one you use.

If you use a current source to drive the speaker under test, the current source returns a voltage back to AP which is directly proportional to the impedance of the speaker. You don't waste an input channel this way and there is no possibility of damaging the input circuits on the AP.

I can post a schematic later if you are interested.
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Old 12th January 2019, 04:28 AM   #22
DualTriode is offline DualTriode  United States
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Hello,

My initial caution with the APx connections was the absence of directions in the APx software manual and the 1701 installation instructions. Sam at AP was very helpful; he wired it all up on his bench and walked me through it. I will check the voltage with a DMM first.

Jack,

In the interest of always learning more please share more of your thought process of saving an instrument connection, please tell me more and pass on a schematic.

Thanks DT
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