Our studio as of now is entirley (for the most part) digital, however in a few days, we will receive our first signal processor, an ART PRO VLA 2 channel tube Compressor / Limiter. Not only will we be using it on vocals and some instruments, but I also heard that sometimes it's common practice to add it to the mixdown as well for mastering purposes. Now I've been checking out a few of these other studios on the web and taking a look at there gear list specifically in the signal processor sections. Here's a list I found from this one studio: Neve 33609C Stereo Comp/Limiter Summit Stereo Tube DCL 200 Comp/Limiter Manley MU Stereo Tube Comp/Limiter Urei LA2A Mono Tube Comp/Limiter Avalon VT-737 Urei 1176N Comp/Limiter (2) DBX 160X Comp/Limiters DBX 166 Comp/Limiter (2) DBX 902 De-esser Orban 516EC De-esser (3) Kepex II Gates SSL Gates/Comp/Limiters Probably the next signal processing unit that we'll be getting is a 31 band eq, but then something hit me. Why exactly do people stack compression processed signals? Or do they just simply have these compressors on hand because of taste or an effect that they are going for? They dont necesarily use all of them right? Mabe alot of them are used for individul sections on drums mostly ect ect? I dont know.