In my example I built a Supersaw kind of sound that consists of 3 instruments. It's very useful if you want to work with layered sounds. You can apply the effect on the submix instead of each individual instrument. You can use this if you have a group of instruments to which you want to apply the same effect, like an EQ or a Reverb. Obviously this is bad for mixing so you need to take control manually.Ī submix is a group of signals bundled together into a single signal. So each instrument has a channel, which is routed to the Master-Insert/Output by default. You also have to know that in FL Studio, instruments are placed in a thing called the Channel rack.