Reply To: Mono + Mono Main Mix Type?

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#51347
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jcarter
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In my church’s mono setup we have the mains on the desk set up as LR+Msum and then send the Msum output to a speaker processor that handles the cross-over between the top cluster and the sub. The major downside of that approach is that the LR+Msum configuration ties up four mix outputs despite the fact that we only use one of them.

If I’d ever get tight on mix outputs I would drop the Msum output and sum L and R together, either in the processor or amp if one of those can be used to safely sum them, or with a summing box (not just a wye tying L and R directly to each other… Rane has a good white paper with schematics for summing circuits at http://www.rane.com/note109.html ).

It’s possible to dispense with the main outs entirely and just run your mono main (and sub if you want) on one or two post-fade aux mixes but that might get a little confusing to train volunteers on.