Low pass crossover setting & slope for Kappa 9?

Might be a dumb question, but why do you need an active crossover? The way these are set up, if you remove the metal insert between the twin binding posts, you eliminate the
crossover at 80 Hz....you drive the woofers with the low end amp and the mid-bass and up with the high end amp. Worked well for me with an Aragon 2004 MkII for the bottom and an ARC D-130 for the top. Sounded good, but I still didn't have enough current to drive the damn things. Infinity told me that at high loads, total resistance can dip below 1 ohm. That's a load that requires an amp with some serious current. Kept blowing fuses on the Aragon, and the D-130- admittedly not ARC's finest piece of work by a longshot- kept going into protect mode after prolonged listening. What exactly will an active crossover add?

I am having a problem with the woofers on my Kappa 9s. The woofers were working but I just wasn't getting any real bass slam. I spoke to Bill at Millersound. Bill said that, and don't quote me here I was up early, that he believed that the inductors were shot. that's the name for the part I think he said, and he suggested that instead of trying to get my crossovers repaired, which would be very difficult and costly, that I purchase an active cross over and Bi amp my Kappa 9. By doing this I would run the active crossover to my adcom 565s connected directly to the woofers and have my Hafler 9505 going to the rest of the speaker.

My question to you folks, do you know where I would set the crossover for the woofer at 100, 80, any thoughts???

Bill also thought that my sound would be cleaner because the woofer portion of the internal crossovers would not be creating any magnetic fields and polluting the other crossovers. So I'm off to the store to get an electronic crossover and see if I can get some bass out of my kappa 9s

Part 2. After going to the store and purchasing an electronic crossover and cables to bi amp my Kappa 9 I tore into the speakers and took all of the screws out of the woofers. Looking closely at the woofers I discovered that the tech that put new foam surrounds in my woofers had wired them back incorrectly and didn't wire them in series. Also he had soldered them in place. So digging out the ol soldering iron I switched the wires and wow what a difference. Off to the store to return the crossover I purchased last night. However, while I have the crossover here in the house I might just give it a try and see how it works for bi amping. However, I i'm not thrilled about placing an additional piece of equipment in the signal path.