Thiel Owners

holco - unwinding is very common practice. I've never done a foil wax, but it sounds easier than a bonded coil.

I'm not following your math. 30 Hz seems like a big change. The complex effective resistance will be different with foil vs round. Can you measure the actual crosspoint change?

We always wound oversized and unwound to taste in R&D.

tomthiel,

The coil's are completely waxed, don't know how hard the layers stick to each other, if I demolish them I lose the guarantee to get new one's.

I suspect that the woofer is 4ohm, with a 6db crossover a 0.72mH coil cross at 880Hz, 0.75mH will cross at of 850Hz, so the loss will be about 30Hz.

Yes iff I want I can measure it with REW, but I don't want to complete the crossovers with the 0.75mH coil's.

Looking at my last Dirac Live measurement there seems to be a shoot over around 800hz > 1000hz, so the 30hz won't be a loss at that point.

[URL=https://picturepush.com/public/16097034][IMG]https://www1.picturepush.com/photo/a/16097034/1024/Thie...]

Holco - the woofer is 4 ohm, then incorporate any zobel network values for actual woofer impedance.

Perhaps talk to Jantzen about unwinding.

In term of low frequency measurement, please be careful with room affect.  Based on the plot above, it shows that at 30Hz, the energy is the same as at 1KHz which does not seem to be right.  The energy of the speaker should be down quite a bit at that low frequency.