FixIt: Adam Fisher, Polyphonic Spree FOH EngineerRead front of house engineer Adam Fisher's Live Sound Tip on Making Sure that All Instruments Fit Into Spectrum of Frequencies during Polyphonic Spree tour 11/01/2008 8:00 AM Eastern
It's all about making everything fit into the spectrum of frequencies. If you subtract something from one instrument, it might be wise to add it to another. For instance, if I take the upper mids out of a guitar so it won't thrash your ears as much, I'll add the same back to the cello. The cello produces a lot of low end anyway, so that just makes it come out more.