i'm new to using compressors. i understand the concept and what they do, just not sure how to get it done. let's say i plug a compressor in to my firestudio 26x26, i've always heard it's better to use compression at the mixing stage. cause once something is compressed during recording it's a done deal. but, here is what i need to know. how does the external compressor work with the firestudio and DAW at the mixing stage? how do i apply compression to the already recorded track? this is what i'm confused about.