All Guitars have a design flaw.

Every guitar, ever produced cannot play in tune.
The 1950’s designs are mathematically flawed and are incorrect:
• Guitars strings only have one adjustment point.
• Guitars necks feature a constantradius.

We solved these problems and patented the solutions.

Introducing the Adjustable Nut.

Guitars are precision instruments that need exacting adjustments at both the bridge and at the nut to properly intonate and play in tune.Unfortunatley, guitars universally lack adjustability options at the nut, and a result, can not play in tune ever. Stringtheory has patented and developed an entire family of adjustable nuts for existing instruments solving this age old problem.Our drop in replacement parts, transform your instrument without modification and enable it to play in tune for the first time since it was built.

ADJUSTABLE NUT FOR OEM INSTRUMENTS
ADJUSTABLE LOCKING NUT FOR 41MM R250/10IN
ADJUSTABLE NUT FOR 42MM R242/9.5IN

About us.

Stringtheory SL is based in Barcelona, Spain. We’re a product development and manufacturing company for fretted instruments. We serve luthiers, factories, brands and players.Our mission is to make every guitar ever made, play, and sound the way it deserves to.