Sorry if it's troubled you. It's just my curiosity.
In fact, I have two 4 Ohms woofers and would like to implement series connecting as your diagram. But I'm also thinking to improve it by employing the second-order instead.
There is a specific function this does, and adding another pole (if it is even possible) would screw up the phase.
This gets you double the cone area below a certaon point putting less stress on the driver doing the top, and allowing for greater levels (by a bit).
dave
This gets you double the cone area below a certaon point putting less stress on the driver doing the top, and allowing for greater levels (by a bit).
dave
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If you're referring to the picture in your post #36, the capacitor "shorts" the 2nd woofer above a certain frequency. But because of the inductance of the woofer, it's also a bp filter. Because the woofers impedance peak, it's in practice often not a good solution, especially with the rest of the crossover. It can work perfectly but it can also lead to phase problems or a big overswing that has to be taken care of. Amps with a low damping factor may not like that phase shift. The speaker may sound different in the low mids depending on the amp. The advantage is ofc it avoid the low impedance of the usual x.5 wiring/filter. It can work nicely but can suddenly sound strange on certain amps because of the unusual phase shift. Technically, that's an amp problem but you should be aware of it since a phase shift in the lower mids will be more obvious/audible than in the bass.
Presscot (the thread starter) does not want to use FRs, so there will be a rest of the XO. That means you were either OT, didn't understand what Prescott wanted or what I was writing. Or you just willfully ignored it. Which is it? Your ideas to solve something doesn't fit every problem.