Thanks John.

When you say 'much more narrow sound', is it any different (or narrower) than just taking the mono (L+R) output? That is mono too?

The trouble I am having is a pre-mixed output sounds different on every sound system. When I am hooked up to larhe system styles seem to sound much more powerful and louder than voices (i.e voices get drained). On a smaller system usually things are okay. If I was able to use seperate outs then sound tech would have more control