- The “SM” series of acoustic and electro-acoustic guitars is the optimal choice of guitars with a good price-performance ratio. The tools are manufactured to the highest quality standards. Ideal for aspiring musicians.This model is a large mahogany dreadnought that enhances the mids for a warm, natural sound. The deep body cutout makes accessing the top neck positions much easier. At its very affordable cost, the Smiger SM-412 offers a number of excellent features: closed-type Roto tuners, stone nut, edging on the body and neck and the thinnest matte finish of the “vintage” style.