dbx or not?

[Studer-Luder]

hi again...i still work with 4-track...now i have tascam 424 mkIII with dbx. I know dbx compresses and reduces noise...right?
So if i recor with dbx...and then mix...do i still need the dbx activated? And if i mix with cool edit pro do i have to play the trax (to get them into the computer) also with dbx activated? Or what do you guys think about?

 

[regebro]

If you record with dbx, you must play back with dbx, or it will sound strange (heavy compression).