The topic of Microphone Preamplifiers is pretty hot at the moment, so we cover it in intense detail in Module 3, with audio examples of many preamplifiers in common professional use. Usually, the question you have to ask is do you want an accurate sound? Or do you want an improved and enhanced version of what the voice or instrument really sounds like? The Practical Assignment Project here looks at stereo microphone techniques. It's quite tough and you will learn a lot from doing this one.