Hello, I have a Mackie SRM450V2 that I bought used. Upon comparison with another working identical model I noticed that this particular speaker does not output anything on the high frequency driver, (I confirmed this by swapping the driver board in question into a speaker with working high/low drivers and the problem followed the board, so I ruled out the driver as being bad) So I’m expecting the error to be on the high frequency side of the board. Would anyone be able to guide me in the right direction with diagnosing this?