i have some question na din, sa mixer, kung asa zero setting na ung master/mic volume knob, how about the setting dun sa gain knob? pag me clipping alin sa dalawa ang iadjust?
thanks. 
Smarty,
Here's for you. Getting the best gain-before-feedback and (the highest signal-to-noise ratio) basics of setting up. The assumption is, every step in the signal chain is an opportunity to pick up noise and it is probably already there, so you want to avoid amplifying it. Another, is that every time you amplify something in the signal chain, you are amplifying the noises too.
Gain Staging Process:
1.) Start Strong-
Start with a strong input(source) and avoid amplifying along the way.
2.) Less is More: Mixers and Effects and Gain
We're talking about mixers and effect's processors here. If you can pass the signal through a device without affecting the level, you're probably doing fine. Set all the channel EQs to their flat or neutral position. This is the unity gain ("0"). Also, by setting your master outputs to '0' on the scale, there are three reasons for this:
a.) You have the maximum fader travel for fading out your mix.
b.) If your faders are set below '0' you will not be getting the full benefit from the meters(if you have) because you will only be using the first few LED's(if you have) on the meter(if you have) scale.
c.) Your mixer is not an amplifier. So the master output faders should be set to maximum ('0' on scale). If extra output is required, then turn up your amplifier.
3.) Amplify Early-
If you have to boost the signal, do it as early as possible in the signal chain. This means, if you have a two places where you can boost the signal, choose the one closest to the source.
Example:
1. Choice: microphone or input trim?
Preferred: Raise the level of the microphone. Move it closer to the source and if possible, make the source louder.
2. Choice: On a mixer ... input trim or channel strip
Preferred: Raise the level on the input trim. Note: If it's not clipping, it's not too high.
3. Choice: On a mixer ... channel strip or master output
Preferred: Raise the level on the channel strip. Note: If you have to get above "0" or unity, go back to the beginning and try to get a stronger signal.
4. Choice: Mixer or Power Amp ... mixer master output or power amp trim
Preferred: Raise the level with mixer master output.
Note: If you have to get above "0" or unity, go back to the beginning and try to get a stronger signal.
5. Cut Late-
This is the same as the above described a different way. If at some stage the signal coming in is too strong, turn it down at the receiving end. That is, turn it down at the end farthest away from the source. Hope it helps.
Direk
