Gibson Acoustic Advanced Jumbo 2018, Vintage Sunburst AC81718 The result is a head

The result is a head that is a 2 ply head that is warm and musical at low volumes

It has two small indentations on the face of the level knob

In Oscillation mode

yet this extremely useful and versatile tool is often overlooked by guitar players as part of their rig

Gibson Acoustic Advanced Jumbo 2018, Vintage Sunburst AC81718 The result is a headWhen originally introduced the Advanced Jumbo was one of Gibson's largest flat top guitars. The Gibson catalog proclaimed "You have never heard a guitar like this! a bass so deep and full that it can be felt as well as heard." This rare model features Gibsons vintage style Advanced X bracing for an enhanced dynamic range.