- tube amplifiers
- electric guitars
Sinuous is a Grand Rapids, Michigan company that makes unique, high quality sculpted guitars. Sinuous use innovative design and manufacturing techniques to create instruments that are comfortable to play and look great. Sinuous guitars are designed by Greg Opatik who has a degree in design from Kendall College of Art and Design. Opatik has been creating and developing modern furniture for many years and is also a long time guitar player.