Yes , you can use the measured mic EQ below 80Hz, then rely on Anechoic EQ above 80Hz .
Depending how near the frontwall your speaker stands, you have to use shelving from 600 Hz and below , that must be set by ear listening to music.
The shelving filtering should be somewhere between - 2 dB to - 6 dB from 600 Hz and below.
Remember that a good roomresponse curve from the listening place, will have a rising bass from 150 Hz and below, about + 4 to + 7 dB . A flat curve will have to little bass, because your eye/brain sees the room and expects some gain in the bass.
Try it
Edit : Remember that the direct sound from the loudspeaker is very important. Every correction you do in dsp from listening place ( room response ) changes the frequency response in the direct sound somewhat from the loudspeaker , making it sound worse than the mic measurements shows, because of the HAAS effect .