An electro acoustic guitar is just like your standard acoustic, but with one big difference: it houses electronics like an electric guitar. This means you can plug your instrument into an amp or PA system and crank the volume for gigging. Luckily for us, most acoustics these days come fitted with electronics so we don’t need to give it much of a second thought when deciding on our next guitar.
The main purpose of an electro acoustic is to give you the option to increase volume, whether you need to match the rest of your band or you're playing solo shows. Unlike an electric guitar's pickups which are used to colour your sound, electro acoustic electronics are designed to reproduce the natural tone of the acoustic instrument as closely as possible. The secondary benefit is the ability it gives you to add guitar effects such as reverb, delay or modulation - a great advantage if you like to experiment with your music.
An electro acoustic saves you lots of time and money as a gigging musician. The only real alternative to what an electro acoustic offers is to mic up your guitar with an external microphone. This can cost a fair amount more in comparison to buying an electro acoustic version of the regular acoustic guitar. All you have to do with an electro acoustic is plug into an active speaker and you’re good to go.