[Br1ck]

$100 and good quality mic don't go in the same sentence. Now if you want one mic that will do everything and survive a bomb blast, get a Shure SM 57, but it is not what I'd call good if you want a detailed sound.

There are a lot of inexpensive mics that are OK, but for capturing an acoustic guitar I'd want something like a Shure SM 81.

Now if you want to record a sub $500 guitar, I'd get a cheaper condenser from an established brand. Nothing truly bad is made by the likes of AKG. I do not mean to come off harsh, I buy plenty of things that do the job, like an impact drill I'll use a few times. I go in a hardware store and ask for something that will do the job. In the world of mics where the "good" ones can be thousands, you are shopping the low end. But it is equally useless to run one through a $100 pre amp.

If I had a c note, I'd buy an SM 57. You will use it for decades.