Originally Posted by Ryan Statz
I don't know much about tower speakers, but my particular set up with my 5.1 system is my Front L/R bookshelf speakers are set at a crossover of 80Hz, my center is set to 90Hz, and my surrounds are set to 100Hz. The sub LFE crossover in my AVR is set to 120Hz. The frequency knob on the sub is turned all the way to the max because as far as I understand it, that allows the sub to let the AVR control that (but I'm honestly fuzzy on those details). You could probably set all of your speakers to 80Hz (except your sub - that should still be set to 120Hz in your AVR with the knob turned to the max on the sub) and be just fine. What you don't want is to set that number lower than what your AVR's auto calibration establishes.
Crossover frequency is one of the knobs on the back. The other one is more than likely a volume/gain knob. I have that set to just a little bit past 50%.
That's my $0.02, but I would heed the advice of other people who know a lot more about this stuff than I do.
Even if I had the exact same equipment that you're using our room and personal taste would be quite different. Integrating a subwoofer/s into any room/system is unique.
For a single sub installation learning where your room modes can be very useful in finding the best location for the sub in your room and not the manufactures drawing. Go on line and look up Subwoofer Crawl Testing. The sub doesn't need to be placed exactly in the mode but the closer the better.
Unless the amplifiers powering your speakers are dramatically under powered I'd begin with running everything full range to begin with.
With the sub located and the speakers at full range on page 15 of the XTZ Edge manual the manufacturer asks you to use "XTZ Room Analyzer II Pro". If you feel overwhelmed by this your not alone. Fortunately, once you get everything needed in place and you do your first calibration you'll realize its actually quite simple and well worth the effort.
At this point you can experiment with speaker frequency limiting using the room analyzer and your ears. Remember, adjust to your taste.
For your next surround system I strongly suggest you look on page 8 of your klipsch manual. The speakers (disregard the sub locations) are placed equal distance form the listening position at equal hight. Using seven identical economical speakers in this fashion will require hardly any room correction and take your surround experience to an unbelievable level. Of course this is impractical but its worth doing for a short time to experience the surround.
Have fun with it.