Low pass crossover setting & slope for Kappa 9?

Call Infinity and ask them if you want the correct answer to your question.

Don't bother with Infinity. Asked the same question 10 years ago for the kappa8's and they had no idea. I don't think Infinity ever published exact specs. Bill at MillerSound might know.

Ask him if the 9's hi-pass/low-pass on the PCB can be bypassed.

Yes, I did call Infinity but they did not return my call. I will give it another try next week. I was just hoping that there were some Infinity fans out there that have used the Kappa 9 in a Biamp application and/or is currently using a external crossover on the Kappa9.
Thanks....Denniscleo

Here is a link to an excellent Infinity site (in German) and the specific page for the Kappa 9, listing crossover points.

http://www.infinity-classics.de/infinity/models/Kappa-series-1987/index-Kappa.htm

Looking at the schematic, it would be easy to bypass the low-pass, wiring directly from the terminals to the woofers. Easily reversible. The high-pass can't be bypassed without digging into the PCB, which requires expertise.

The low-pass is unusual, combining a low frequency filter and what looks like a 6db/oct, first order. The subsonic filter is optional if the amp is up to the challenge. Some active crossovers incorporate their own 20 Hz rolloff. A one or two ohm, high wattage series resistor can be added to increase impedance but gain will have to be adjusted.

High pass (mid bass coupler) looks more like a backwards 18 db/oct bandpass.

Crossover points could be asymmetric as well.