Furch Blue D CM Acoustic Guitar (2026 CNR Active Upgrade Model)The Furch D20 CM was the finest dreadnought money could buy if your playing is all about tone, proving World Class tone could be found under GBP1000. The Furch Blue Series takes the 20 series to a new level with the implementation of the.. Furch CNR System Neck Design A high precision dual action truss rod maintains neck stability and allows fine adjustments of the neck relief in both directions. The truss rod is installed in a carbon casing filled