EQing Nearfields (Mains)

[Micheallong]

Hello...

i´ve spend a lot time here and in my little mixing room trying to correct the response with an parametric EQ. I have corrected the complete bass with 3 bands and used two more narrow bands for correcting two peaks @ 200Hz(3-4db) and 430HZ(4-5db). The Bass sounds really good after correction. (i´ve also done some manual sweeps to assure i could hear these peaks and not only measure)

The problem now is, if i do a mix on this speaker and listen to it on other speakers in other rooms the mix sounds mudy and unclear in the upper bass range and lower mid range(in comparison to other mixes). But i can´t hear these problems on my main speakers although the response looks really good without deep notches....also there are no abnomitys in the waterfall graph. Is eqalizing the range above 100hz more worsening?? thank you so much for some informations and experiences