Ovation Guitar Stringed Instrument Construction with Adjustable Neck Stiffener and Tension Rod

This patent describes an improved guitar neck construction featuring a metallic stiffener embedded in the main neck part along with a tension rod, both made of high modulus of elasticity materials, allowing precise adjustment of neck bending to counteract string forces. The stiffener includes a rearwardly extending heel at its lower end that connects firmly to the instrument body through threaded fasteners passing through a massive block in the bowl. The system is highly sensitive to adjustment nut rotation, providing a wide range of bending compensation while maintaining a rigid, unyielding connection between the neck and the hollow composite bowl body.