Any way to manipulate the overal impedance(ohms)?

[i2ain2thunder 10+ year member]

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[maylar 10+ year member]

bromo thanks a lot for that. Please tell me if I interpret the data correctly:

Looks like you're using a D4 sub? About 3 ohms DC per coil, 4 ohm nominal?

With one coil open the impedance range is 3.077 - 14.28 ohms, and with the coil shorted the impedance range is 3.077 - 5.361 ohms? Do I read that correctly?

What frequency range is that measured over?

I was intending to do an experiment myself this weekend, but my test equipment isn't quite as sophisticated as yours. And it's damm cold in my workshop...

Thanks again.

 

[NB50 10+ year member]

bromo thanks a lot for that. Please tell me if I interpret the data correctly:
Looks like you're using a D4 sub? About 3 ohms DC per coil, 4 ohm nominal?

With one coil open the impedance range is 3.077 - 14.28 ohms, and with the coil shorted the impedance range is 3.077 - 5.361 ohms? Do I read that correctly?

Yes it is a D4 ohm sub, LA Storm Neo D4 to be exact.

What frequency range is that measured over?

1hz to 20khz

I was intending to do an experiment myself this weekend, but my test equipment isn't quite as sophisticated as yours. And it's damm cold in my workshop...

Thanks again.

lol, just a WT3 from PE.

 

[duanebro 10+ year member]

Yes it is a D4 ohm sub, LA Storm Neo D4 to be exact.
1hz to 20khz

lol, just a WT3 from PE.

Thank you bromo, I did about the same thing last night, first time using arta limp. I found the same results- but I had problems with only running one coil. I kept getting "bad data error" when trying to calculate TsP. I think it is my jig, but it doesn't matter. The graphs looked the same as yours.

For any one that wants to hook a dvc sub up with just one coil. Play full range pink noise at a low level. Then short the other coil. It has a big difference on the sound and spl.

If anyone is intrested I can get the fr of a sub hooked up like bromo did for impedance.