Back to practical considerations inside a small room.
Effective room equalization starts with a good pair of quality speaker stands (ear height 1.2m or 4ft) and moving speaker around by iteration in the room (according to floor marked trial pattern). Toward more satisfactory low frequency response, overall in-room flat response and precision stereo image (minimizing unwanted reflections).
Once you have found few best spots (maybe 1, 2, 3 pair of positions provide flatter response) in comparison to reference headphones, you may reconsider your need for any electronic EQ.
DIY speaker in room integration optimization. Many good readings (from simple to more complex):