Balancing a NEW SYSTEM from scratch is an SOB - for anyone outside the amplification industry - (90% of those who say they "know" "DON'T")
Ask around your local area, contact churchs and schools with new systems. Find the RIGHT man and then pay the money. The entire field has been changing every three years....but a good technician from thrity years ago still knows the electrical rules....IN-Out-Out-In-Out....
Get one component too large and you fiddle with the whistles for years trying to compensate.
Sincerely,
Gargoyle
been whistling the fiddle-stats for over 30 years because I was too cheap to get the input right.