looking to try to split 80hz from an active stereo 3 way

[2sick2pray]

I'm new at this but gaining knowledge quickly. I have a DCX2496, with my LF setup at 499hz down to 35hz.I hope tp split my mid bass and subs at 80hz off my main LF amp, by way of A speaker to my mid bass and B speaker to my Sub amps. My question, is there a HP filter design(80hz) for the speaker out to go to my Mid bass? Not line level. Thank you in advance for any and all help here as I am waiting to afford another 4way stereo active DSP ( Ashley I hope). 2S2P

 

[picowallspeaker]

If it was 800 Hz, maybe.
80 Hz is definitively a task for an active filter .