Two questions about PA speakers

Hi folks,



I have a 400 watt PA Peavey cab with woofer and horn. The horn kept getting blown, then I realized that I made a mistake, the power amp is 600 watts. I already have the enclosure I want, so I figured I would just upgrade the speaker and horn at the same time.



* What frequency range should the woofer be, generally? I was considering buying this:

Eminence Kappa-15LFA 15" Low Frequency Driver 8 Ohm

since it got great reviews and is a great price. 2700 Hz is the top of the frequency response. Is that generally reasonable? Looks like the horns generally go down to around 1k, so it seems to make sense, just wanted to make sure it would work.



* How many watts does the horn need to be able to handle? I know the woofer generally needs to handle most of the power, but how do I calculate that? (power handling vs frequency) How do I tell if the horn driver is compatible with the actual horn? Is it a dimensional thing?



Thanks!!

Two questions about PA speakers