Line array specialists :
One of the venues I regularly play in has discovered recent or not so recent issues with their Main M1D rigs used as orchestra support for ballet /operas..
Right side was found to have 5 boxes out of the 11 with defective/dead tweeters, I don't know where these are located in the hang, Left side was ok!...these boxes feature 3 x tweeters per box along with 2 x 5" woofers crossovers are at 1900 hz....obviously the system didn't sound as pristine as it once did and is scheduled for replacement with a meyer CAL ...but my question is, would it not have been quite evident that that side of the PA was missing highs? regardless of where the missing tweeters were located ? or would it just be a few dbs low over the high spectrum (less than -3db as it still had its tweeters in the other 6 boxes??) or.
what if they were the top 5 in the array, wouldn't that be evident on the orchestra level for ex.?
And what could cause this ? again I don't know which processor output was driving which set of M1Ds ...
All I was told was that the 2 sides sounded different enough (nothing drastic though) to warrant further investigation, and that eventually each box (they're all on separate breakers ) was sent signal and compared to a known good box.....
The bad ones were sent out for repair and replaced with spares they had on hand.....
Thanks
Ray