Subs with adjustable impedance?

[98 SNAKE EATER]

6 minutes ago, 1point21gigawatts said:

I just read the manual on that subwoofer. The only place you plug in at is that orange terminal as if it were a single voice coil subwoofer. The other terminals aren’t used to plug to. But they serve a purpose on functionality in unison with the orange terminal you plug into. Only plug into the orange terminal and pick an impedance. 

Yes, I know this....

 

The question still remains as to how this is accomplished?

 

Other subs that have switchable impedance are typically DVC subs with a single switch that toggles between series and parallel wiring, so if it was a 4ohm sub, you'd have the option of 2ohm or 8ohm

 

Or if it was a 2ohm DVC, you'd have the option of 1 ohm or 4ohm

 

Still at a loss as to how my JBL can go from 2 to 4ohms 🤔

 

 

[98 SNAKE EATER]

OK, so according to this video, the SSI subs from Infinity (apparently the same design) uses 3 voice coils

 

 

[98 SNAKE EATER]

Love this sub btw