Mic setup

Nobody will really give me a clear answer on what I need to buy to get a mic setup. I want something loud enough for a band to rock a house or small bar or something. My guitar amp is very loud and I need something to keep up with it.
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Luke11367 wrote:I'm very new to all the PA systems and things and I'm trying to learn more about them. Is there anyway someone can slow down and explain to me if I really need all these things. I'm wanting to be as basic as possible with my equipment and not trying to mic my amp and all. I just wanna know what I need to buy to run one mic that'll be fairly loud.