You will have two basic choices when choosing a guitar recorder mic – where to go for a small-diaphragm condenser microphone or a large diaphragm acoustic guitar microphone. They are both good choices, but for different reasons. Click the link for a list of possible condensor or dynamic mics you will be using
Engineers generally prefer small-diaphragm condenser microphones as they respond better when placed close to the guitar. They capture the natural transient response of the acoustic guitar very well. The guitar is a very dynamic instrument, and condenser mics reproduce its sound with an excellent clarity. They are much more detailed than large-diaphragm mics and cause very little distortion.
Large diaphragm mics have their own advantages. They are much more expansive, and capture the room sound very well. They can be placed a few feet away from the guitar. Some performers prefer this as they would rather not have the guitar recorder placed too close to the instrument.