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Re: 6500 anomaly
How does DATS calculate Mms, which equals Mmd + Air Load? DATS is saying higher Mms (Mms ratio >1). A more compliant driver with higher moving mass should have a lower Fs, which is what was measur…1 · -
Re: 6500 anomaly
Can you do an overlay of the two impedance curves (maybe you can't because vertical scaling is different)? Zmin is similar although occurring at a lower freq.. Zmax is quite a bit higher and at …1 · -
Re: 6500 anomaly
The aluminum plate was worse than the plywood. Not surprising. Aluminum is a paramagnetic material and plywood is totally nonmagnetic. https://www.nde-ed.org/Physics/Magnetism/MagneticMatls.xhtml &qu…1 · -
Re: 6500 anomaly
This link explains a bit more: http://diy-audio.narod.ru/litr/Le.pdf2 · -
Re: Phase Plug design for MW65xx
Very cool. The same thing happens if you drop a magnet down a copper pipe (or aluminum).2 ·
