 | SIGMA DR-2Manufacture of the DR-2 begin in the 1980s and ended in 1996 |
| No image yet | SIGMA DR-28This guitar is a Sigma by Martin which was produced to compete with the lower priced asian models. D - Dreadnought R - Rosewood 28 - Designed after the "classical" D - 28 Martin Made in Japan 1977 until 1982 when production moved to Korea The logo on the head actually says "Sigma by Martin Est. 1970" There are many who flame and spam forums saying that they are fakes and not Martin, and nothing could be further from the truth. Is a Toyota Camry manufactured in the US, not a Toyota? |
| No image yet | SIGMA DR-28HSIGMA manufactured the DR-28H from the 1970s until 1994. This model is a clone of the Martin HD-28 dreadnought model. This model was reissued around 2011 after AMI Musical Instruments GmbH bought the Sigma brand name and began marketing Sigmas made in China. |
| No image yet | SIGMA DR-35Manufacture of the DR-35 began in 1996 |
| No image yet | SIGMA DR-41SIGMA began making the DR-41 in 1996 |
| No image yet | SIGMA DR-41The Sigma DR-41 acoustic guitar was the top of the Sigma line. The Sigma DR-41 featuresd |
| No image yet | SIGMA DR-45SIGMA manufactured the DR-45 between 1994 and 1996 |
| No image yet | SIGMA DR-4HRead more |
| No image yet | SIGMA DT-4NRead more |
| No image yet | SIGMA DV-4The first DV-4 was produced by SIGMA in 1994 |
Specifications:
| Model | Image | Made in | Number of strings | Scale length |
|---|---|---|---|---|
| SIGMA DR-2 1980 to 1996 |  | - | - | - |
| SIGMA DR-28 1977 | No image yet | - | - | - |
| SIGMA DR-28H 1975 to 1994 | No image yet | China, Japan, Korea, Taiwan | 6 strings | 25.4 inches scale-length |
| SIGMA DR-35 1996 | No image yet | - | - | - |
| SIGMA DR-41 1996 | No image yet | - | - | - |
| SIGMA DR-41 1990 | No image yet | - | - | - |
| SIGMA DR-45 1994 to 1996 | No image yet | - | - | - |
| SIGMA DR-4H | No image yet | - | - | - |
| SIGMA DT-4N | No image yet | - | - | - |
| SIGMA DV-4 1994 | No image yet | - | - | - |
| Model | Body back material | Body sides material | Body style | Body top material | Pickguard material | Soundhole |
|---|---|---|---|---|---|---|
| SIGMA DR-2 1980 to 1996 | - | - | - | - | - | - |
| SIGMA DR-28 1977 | - | - | - | - | - | - |
| SIGMA DR-28H 1975 to 1994 | rosewood body back | rosewood body sides | dreadnought-size body | spruce body top | tortoiseshell pickguard | round soundhole |
| SIGMA DR-35 1996 | - | - | - | - | - | - |
| SIGMA DR-41 1996 | - | - | - | - | - | - |
| SIGMA DR-41 1990 | - | - | - | - | - | - |
| SIGMA DR-45 1994 to 1996 | - | - | - | - | - | - |
| SIGMA DR-4H | - | - | - | - | - | - |
| SIGMA DT-4N | - | - | - | - | - | - |
| SIGMA DV-4 1994 | - | - | - | - | - | - |
| Model | Body fret | Neck material | Neck width | Tuner layout |
|---|---|---|---|---|
| SIGMA DR-2 1980 to 1996 | - | - | - | - |
| SIGMA DR-28 1977 | - | - | - | - |
| SIGMA DR-28H 1975 to 1994 | Neck joins body at 14th fret | mahogany neck | 1.69 inches wide at nut | three-each-side |
| SIGMA DR-35 1996 | - | - | - | - |
| SIGMA DR-41 1996 | - | - | - | - |
| SIGMA DR-41 1990 | - | - | - | - |
| SIGMA DR-45 1994 to 1996 | - | - | - | - |
| SIGMA DR-4H | - | - | - | - |
| SIGMA DT-4N | - | - | - | - |
| SIGMA DV-4 1994 | - | - | - | - |
| Model | Fingerboard material |
|---|---|
| SIGMA DR-2 1980 to 1996 | - |
| SIGMA DR-28 1977 | - |
| SIGMA DR-28H 1975 to 1994 | ebonized fingerboard |
| SIGMA DR-35 1996 | - |
| SIGMA DR-41 1996 | - |
| SIGMA DR-41 1990 | - |
| SIGMA DR-45 1994 to 1996 | - |
| SIGMA DR-4H | - |
| SIGMA DT-4N | - |
| SIGMA DV-4 1994 | - |
| Model | Tuners |
|---|---|
| SIGMA DR-2 1980 to 1996 | - |
| SIGMA DR-28 1977 | - |
| SIGMA DR-28H 1975 to 1994 | Grover tuners |
| SIGMA DR-35 1996 | - |
| SIGMA DR-41 1996 | - |
| SIGMA DR-41 1990 | - |
| SIGMA DR-45 1994 to 1996 | - |
| SIGMA DR-4H | - |
| SIGMA DT-4N | - |
| SIGMA DV-4 1994 | - |
