Phil Jones CUB AG-100 Acoustic Guitar AmplifierPower and Clarity for your Acoustic Electric Guitar in a Small, Lightweight Package! Imagine a guitar amp that is small, powerful and lightweight. It would work on AC worldwide without needing a switch to change power. An amplifier so clean it can work for just about any acoustic instrument or with a pedal board create the sound of a monster stack at full blast. No more back pains getting your gear up and down stairs, you can pick this tiny amp up