Quote Originally Posted by Kevio
A couple comments and a question:

If you can manage it, use a third C100 as a center channel speaker. The C-C100 looks like it will do the job but these center speakers with multiple drivers arranged horizontally are a sub-optimal design from an acoustics perspective.

The ESW-8 does have terminals for speaker-level connections. Really much better to use the line-level sub-out if that will work for you. If you do need to use the speaker connections, I think you'll experience problems if you try to follow RoadRunner's recipe for that. His recipe for the line-out connection looks delicious so let's hope that works for you.

I'm curious to know what's the difference between a music and theater subwoofer. This is the first time I've heard of a distinction.
I'm curious about your horizontal center speaker statement. What's the reasoning? Why is vertical better than horizontal? My center is identical in configuration to the mid/high portion of my mains. It has rounded edges and I have it sitting forward of the of the plane of my LCD display, so I don't have to worry edge deflection. It's below the LCD with a carpeted floor, so floor and ceiling reflection isn't a problem. How would my center be better vertical than horizontal?

Your statement is pretty general. I understand the value of controlled horizontal dispersion with the front speakers, but your statement doesn't take into account spacing. I have my mains set 9' apart. What about horn-loaded speakers? Horn configuration vary in dispersion patterns. Putting a horn with 60/40 vertical orientation on its side would sound totally different.

With the center channel responsible for a large percentage of what comes from the front, how is a speaker with a single mid/low driver better sonically than the two woofer center's extended frequency response?