Alvarez and Yairi Acoustic Guitar Materials and Construction

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Technical Information

direct coupled bridge


 

The patented Yairi Direct Coupled Bridge is both visually unique and ultimately functional. This significant improvement in guitar design better utilizes the energy of the vibrating string by “coupling” the string to the top – a more efficient transfer of energy. This energy is applied directly to the top, increasing volume and projection. With traditional bridge designs, string tension forces the bridge toward the neck. This causes lifting of the bridge at the rear and a dip in the top behind the soundhole.

The Yairi Direct Coupled Bridge redirects the string tension downward on the bridge, eliminating the problems of lifting and top distortion, and allowing lighter bracing of the top for maximum tone.

 

 

hand-scalloped top bracingand

 

Many years ago, Kazuo Yairi realized that traditional neck joint designs did not allow for broad adjustment of the fingerboard. Most guitars would develop a hump at the neck/body joint. Yairi developed his unique neck extension, which allows truss rod adjustment over a wider range of the fingerboard, eliminating neck/body fingerboard irregularities.

 

 

hand-scalloped top bracing

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Each Alvarez Yairi guitar is individually “voiced” to unlock its complete sonic potential. Yairi luthiers hand-carve each top brace depending on the thickness and flexibility of the top, allowing for the perfect balance of tone, volume and structural integrity. This gives each Yairi its own distinctive sound.

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