Guitars with 20 (total), 14 (clear) & acoustic
| Compare | Title | Guitar Type | Acoustic/Electric | Neck Shape | Scale Length | Number of Frets | Body material |
| Add to compare |  Martin Performing Artist OMCPA4 |
6-String Acoustic Guitars | Acoustic | Performing Artist Profile | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin D-15M |
6-String Acoustic Guitars | Acoustic | Modified low oval | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin Performing Artist OMCPA4R |
6-String Acoustic Guitars | Acoustic | Performing Artist Profile | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin D-16RGT |
6-String Acoustic Guitars | Acoustic | Modified low oval | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin HD-16R Adirondack |
6-String Acoustic Guitars | Acoustic | Modified V | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin HD-35 |
6-String Acoustic Guitars | Acoustic | Low Profile | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin OMJM John Mayer Special Edition |
6-String Acoustic Guitars | Acoustic | Custom low profile, Low Profile | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin 000-28 Standard Series |
6-String Acoustic Guitars | Acoustic | Low Profile | 24.9 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin Performing Artist OMCPA1 |
6-String Acoustic Guitars | Acoustic | Performing Artist Profile | 25.4 " | 20 (total), 14 (clear) | --- |
| Add to compare |  Martin D-1GT |
6-String Acoustic Guitars | Acoustic | Modified low oval | 25.4 " | 20 (total), 14 (clear) | --- |