Page "Steel-string acoustic guitar" Paragraph 7

* A " Grand Auditorium " ( GA ) guitar, sometimes called a " 000 " or " Triple-Oh ", is very similar in design to the Grand Concert, but slightly wider and deeper.

Many GA-style guitars also have a convex back panel to increase the volume of space in the soundbox without making the soundbox deeper at the edges, which would affect comfort and playability.

The result is a very balanced tone, comparable to the 00 but with greater volume and dynamic range and slightly more low-end response, without sacrificing the ergonomics of the classical style, making these body styles very popular.

Eric Clapton's signature Martin guitar, for example, is of this style.

Taylor's GA and x14 series and Martin's 000-xxx series are well-known examples of the Grand Auditorium style.