what *do* they do?!?
where should one place the compressor in one's FX line?
i have a stomp box compressor at the start of my fx loop and a compressor inline just before the amp as well, but i wanna get rid of one, so, which one?
Crosovers sort out the frequencys into several bandwidths..usually two or three, which are then individually taken to amps and appropriate speakers etc, so that eg, bass freqs go to bass bins, high end goes to horns, and the mid goes to speakers.
As for compression, it depends...one at the end attenuates output and smooths out the sound, whilst increasing sustain..one at the start will do that to your input signal, so that it won't be as spikey.
Convential stomp box thinking would say that you keep the one at the front of your chain, especially if you have a distortion box somewhere in there - you'll get a smoother distortion that way. But, it has to be down to which one sounds best to you...