Behringer FBQ2496 for sub bass use 40 bands

Behringer FBQ 2496 for sub bass use where channel A and B will be looped to make not 20 channel but 40 channels of parametric EQ where Behringer DCX 2469 keeps JBL 4645/C on its own DSP crossover where they can be trimmed for small frequency chances the FBQ 2496 will do most of the frequency balancing hopeful for a linear subwoofer playback.