With regard to balanced operation; with adapters or conversions, one could still appreciate that the cables themselves would still have the advantages of superior noise rejection.
True balanced would be better still, maintaining the advantages of full balanced through put throughout the circuitry, and voiding whatever pitfalls might be introduced through superfluous conversions.
As for my recommendation for Oblgny to have two separate stereo 3.5 eq's converted to mono balanced operation, I assumed (always dangerous!) that described as such, that I was not attempting to suggest, as dlcockrum has wisely pointed out, that the eqs might merely be superficially converted to balanced operation. One would not need a second eq to do that. But, rather converting the previous stereo eq units to 2 mono units would permit true balanced operation. Oblgny would be wise to be quite specific when having this work done.
Also, should Oblgny ever decide to go with mono amps in the future, the now mono balanced operation of the two eq's would help towards the greater stereo separation that mono amplifiers provide.