More 23+ Pedals For Acoustic Guitar. While you can add effect pedals to your pedalboard to enhance your acoustic tone, these pedals give your tone a solid foundation for any performance. Usually, acoustic pedals are engineered in pedal form, but they can be found in effect processors, as well. Different pedals may have different guitar effects. There are many guitar pedals in the market, but not all of them will function flawlessly with your acoustic instrument.