#1
I have powered speakers, and these are the 4 parameters.

input gain, Low frequency, room compensation, and high frequency. All units in decibals

I want to get the same sound as in headphones. There set in my bedroom about 6 feet from the wall.
#2
Get an SPL meter. Measure the level where your ear is at when you are mixing. You should be running around 95 db, as this is the level where the ear hears all frequencies evenly.