Microphones and DI boxes
In order to amplify the sound and reproduce it in the PA system we first need to obtain a real-time impression or copy of it that we can use. We usually do this in one of two ways. One method is to use a microphone that absorbs the vibrations and converts them into electrical impulses. Another way is to intercept the instrument's electrical output signal and use that, with a piece of equipment called a DI box. It's useful to have a good idea about the various types of microphones and DI boxes available and what their different capabilities are.
The proximity effect and axis response
Some microphones exhibit what is known as the ‘proximity effect’, which can work for or against you depending on if it's being used correctly. ...