Equalization needed

I use 6) B&G RD75 & RD50 planers in my system. They have a cavity resonance @ 5.2K that requires a notch filter. They use passive LCR but my system has no passive filters anywhere between my amps and drivers, each driver is directly connected to its own amp, tri-amp. The ARX is 6-channels in and 6) channels out only one circuit per channel. Less is more!  Each of the 6 filters are the same as the next. No other EQ ever made does this.

Ray

I realize the control Parametric type can give,

however, how close to what you need are dual channel 31 band (1/3 octave) units?

see my last post here:

https://forum.audiogon.com/discussions/equalizer-to-compensate-for-hearing-loss-any-success-stories