Frankly, a set of Behringer B2030P, all the way around, would be far better in terms of fidelity. These will have much lower cabinet resonance, and have extreme improved off axis response(on and off axis response is nearly identical, even up to 15kHz). These are 130/pair. Yeah, it sounds ridiculously low in price. But I have extensive knowledge of speaker systems, relevant measured behaviors and correlation of such to human perception; it's my primary area of interest. I would not have believed it myself if I had not measured/examined a pair. Not only is the measured behavior far beyond expectation, so is the build quality of the cabinet and drivers and crossover. Now, there is a manufacturing flaw on the Behringers(you can find flaws on most things if you look hard enough). There is an air breach where the tweeter connects to the front waveguide. This is easily fixed with some inexpensive speaker gasket putty. remove 8 screws to take off the front waveguide, then place the putty between the tweeter and the waveguide. Easy. Quick. While you are at it, you could also use some liquid superglue and apply it to the seam between the woofer's magnetic shielding can and motor. Like most lower cost speakers(this is not limited to this model or brand), the can can rattle/vibrate because is it only crimped into place. By adding a thin glue in the opening, this vibration potential will be eliminated.
These will not get as loud as the Klipsche, of course. But with a 100 watt per channel receiver, they will achieve more than sufficient SPLs in a normal size room.
You need to cross these speakers at 75 to 85 Hz range. You need to use at least two subwoofers; one near each left and right main channels, if you want seamless bass response/integration for music playback. For movies, it won't matter much.
-Chris
