Dont forget....
First and foremost, rely on your ears, NOT on your eyes!
A spectrum analyzer can be usefull if you hear some problems or discrepancies, and then a quick check on the analyzer to confirm suspicions etc....
In this computer age, we are relying on our vision alot, which can be dangerous. When you want to listen to your mix, turn off your computer monitors, shut your eyes, and open your ears!
Good luck!
