I use a Behringer DEQ2496 with modded DAC to replace high level baffle step with digital EQ. These units are notorious for having tons of features, spotty build quality, and being extremely hard to figure out all those features. With the help of the microphone Behringer offers with the piece and you-tube you can achieve better/verified in-room results (highly recommend having the 'right' room plus any treatments first).
Of course nowadays with digital sourcing you can replace EQ (or The Fix) with software (and mike of course).