Originally Posted by
Jdunk54nl
If you do not need to use the input eq to correct the input signal, you could tune all of your speakers for a flat response within their passband, and then just change the input eq to quickly change house curves. This would then be acting like a global eq so it would keep phase and everything working like original.
but this is one of those half a dozen in one hand 6 in the other type questions. Audibility wise, it will (should at least) make zero difference as long as you don't clip anything by boosting the input eq side.