crossovers

Almost all coaxial speakers have their own built in Crossover. You mostly find external X-overs on component sets. Are you looking coaxial’s or a component set?

I'm looking at coax.  Specifically, I was looking at Infinity Reference vs Kappa.  The kappas have an outboard crossover, whereas the references don't.  I was initially wondering if any other companies put out speakers with outboard crossovers, but since it turns out most speakers have a crossover I wonder what the crossovers on the kappas are and how they are different?

They are 2 different speakers; the kappa’s are rated at a higher wattage and can go to a lower frequency than the Reference can. It’s like the difference between a Honda civic and a Honda Accord. Also on some Outboard Xovers they have additional adjustments to adjust the high and low frequencies.