How do inductors help impedence matching?

Eldatford - if I understand properly, a cap can be seen to decrease impedence as freq increases, while a coil can be seen to increase impedence as freqs go lower. The resulting overall impedence curve vs. freq is flatter than it would be without the crossover components. Am I correct?

A related question: other than experimentation, how might I predict effects of changing output taps on my SET amp from 4, 8, and 16 ohms? I do plan to experiment, but it isn't trivial because I have to reconfigure the output taps of the transformer each time. And ohms law doesn't apply, since we are discussing AC, correct?

Thank you for your response - I really appreciate the opportunity to learn.

scott

OK, continuing the automobile transmission analogy, the load presented by the speaker to the amp would be like the steepness of the hill, correct? The steeper the hill (more difficult speaker load, or lower impedence), the more current needed to go. And a more benign speaker load would be like a gradual incline, requiring less current and benefiting from more voltage, right?

I'm driving very high-efficiency horns ~108dB sensitivity. I was first going to try the 4ohm tap, striving for more current to the 15" woofer. Instead, would it be a better idea to try the 16ohm tap for better power transfer compared to the present 8 ohm tap?

bty, listening without the coil filter is to my ears, much clearer and "transparent".

Best,
Scott

Thanks for many informative responses.

Gs5556 - the inductor is in series, used as a low-pass filter and "impedence matching" component.

Ed_sawyer - have read many of your posts here and at AA, and found some of them imformative. In this instance, your reply is a statement of the obvious:

"removing the coil is going to basically remove the low-pass on the woofer" (thank you...)

"go model the crossover using existing values, in an online crossover program and see what the points and slopes are" (As Bruce says, the model has little bearing on resulting sound. Besides, I did model the xover about 4 weeks ago)

"you are better off leaving it at 8 ohm tap most likely" (why? have you tried the other taps? I'm interested)

"Bruce Edgar himself" (yes, we talk)

"Basically, leave the Xover alone, you stand to do (more) damage to the sound and the gear by fooling with it and not knowing what you are doing" (as Bruce says, the crossover values he uses are the result of an iterative process, and the Titan and Edgarhorn values are the results of his years of listening. My MF driver is different than his)

I am still forming an impression about the Fane, but in general agree with you. Am very interested in listening to the Fostex and T350. Ed, I would be very grateful if you share your experience with these in your Edgarhorns.

I asked alot of basic questions in different ways because it helps me to learn and gain a deeper understanding, which I try to apply in my system.

Joeylawn36111 - thanks for your explanation

Eldartford - you're priceless. Thank you.

Scott