Sigma DR-7 late '70s Sunburst

Reverb Estimated Used Price Range

  • $450$700

Sigma started as a lower-end import brand for Martin in the '70s. The DR-7 was a dreadnought with Rosewood back and sides (hence the DR in the title). Sigmas were built in Japan from 1970 until 1983, and those from this era as considered the best. 

Years of Production: 1970 - 2007

Wood Composition: Rosewood back and sides, Spruce top

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