Maggies with a subwoofer system - optimization?


I need advice on how best to improve the midrange and base on my Magnapans (1.6qrs)My idea is to relieve the panels of base duty ( only feed the signal above 100 to 150 hertz to the panels and let my Swarm subs take the low end signal). I assume my midrange will improve, and the solid base performance via the sub system will fill in well. I now run a Krell S550i integrated into the Maggies, and the Krell Pre output into the DaytonAudio SA1000 Subwoofer amp.

Any feedback is appreciated - will I lengthen the life of my panels? Am I wasting my time? 

Tom8999
tom8999
Everyone - thank you all for the input on my quest to keep tweaking my Maggies and my new Sub system from Duke.

i have reviewed the multiple YT recommendations and I agree that I may make more gains in my sound looking at better speaker isolation and room treatments - I am going to abandon the idea of limiting the low frequency (under 150 hertz) going into my Maggie 1.6qrs. I feel ‘as is’ that the system sound has integrated very well -  I guess my reason for concern started when I saw some minor delam of my copper wire ( 4 spots near the buttons on the panels about 1.5 in in length) on the back of my 1.6qrs and considering their age (18 years old).

I am very happy with my sound after the addition of The Swarm. 

Again - thanks for the education.

tom8999