One thing I should mention is that the Math Audio Room EQ program is a very significant sound upgrade for anyone that has some basic room measurement or mic experience.
It just takes setting up the calibrated mic at the listening position to do the automated measurement and the correction. Very few steps unlike other systems like DEQX, and to me sounds better. With today's calibrated mic's like the Dayton Audio UMM-6 that is a USB mic, it is very easy to connect, load the calibration file and start testing. Took about 30 minutes in total to make measurements and get the correction running in Foobar2000. Very simple for most folks to try.
I have listened to many of the techniques, and this one does music well!