avia calibration for 7.1?

ok... i'm back with another question ... i tried a search on this because i know i saw the answer somewhere before but it didnt come up... anyway... Since avia offers aclibration for only up to 5.1, how are we supposed to calibrate the 2 rear surrounds in a 7.1 setup?

also, i have 2 subwoofers in my setup... if i were to calibrate using avia, should i calibrate both at the same time, or turn one sub off and calibrate and then do the same with the other?


thanks alot! you doon't know how much help this forum is!