Whether you only need a single mic and a speaker or a full kit for your band, it pays to know how a PA system works. This article explains each piece of the system.
A mixer is the brains and control center of a recording studio or PA system. This article will help you understand the different features you'll need in a audio mixer.
What do you need to start podcasting? Really, just a computer and a microphone. And perhaps some headphones, and a USB audio interface.