Solen Horn Kit, how should I interpret this Xover?

Hi Everyone,

I ran into something I didn't understand so I thought I'd ask here. While randomly perusing the Solen website for kits for no particular reason I ran into this high efficiency, high output kit. Looks really interesting, but not something I can afford or have room for. I was hoping one of you experts in all things passive crossovers could help explain.

The diagram is physically inverted, with the woofer at top, tweeter at the bottom with cross points of 800Hz and 7KHz. Ok, that's all good but the left most parts of the mid and tweeter sections have unexpected impedance compensations. Usually I expect to see these to the right of the LP and HP filters.

On the midrange is a notch with 68uF, 0.68mH and 6.8 Ohms, while the tweeter has a 2.2uF and 6.8 part.

Are these there just to keep oscillations down? What's the point?

Thank you!

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