The soundboard of the Blue SW is made from high-grade Sitka spruce. The back and sides feature high-quality black walnut. Open-Pore Finish leaves wood pores exposed, which preserves the natural acoustic properties of tonewoods. This combination of high-quality solid tonewoods and proprietary finish produces a beautiful musical sound across the entire tonal range, with balanced midrange frequencies.
 
Scroll through the images to see the new CNR neck design. On that image, you'll see  items that correspond to the descriptions below.
 
Redesigned heel-to-fingerboard structure improves neck heel stability and transfers string tension to the expansive element and adjustment screw. Its length and rigidity ensure optimal neck geometry and excellent playability.
 
Eccentric screw secures solid lateral position of the neck.
 
Two-way adjustable truss rod allows for precise adjustments of your neck relief.
 
Carbon fiber truss rod casing keeps your neck relief smooth over long periods, even in tough conditions.
 
Expansion gap accommodates natural wood movement due to humidity
changes.
 
Expansive element is the heart of CNR System® Active, responding to ambient humidity by expanding or contracting to maintain consistent neck performance.
 
String action adjustment screw allows fine-tuning of your string action for personalized playability.
 
The CNR System® Active provides you with the freedom to quickly and easily adjust your setup and the confidence that your guitar will always feel just as great as the last time you played it, regardless of environmental conditions. This innovation allows you to immerse yourself in your music and strengthen your connection to your instrument—which is what matters most. Whether you play to create, perform, or unwind, the CNR System® Active delivers a seamless and enjoyable experience, transforming your guitar into a more reliable and inspiring companion for years to come. The Furch CNR System Active® neck design is available in all Furch guitars with serial number 126,202 and higher.