When you try out Tsuji Shiro's guitar, even professional musicians are surprisingly high in the sound quality and sound. I was happy to hear that our guitars were highly evaluated by professionals.
Our guitar has a slightly different acoustic structure from a normal guitar. This structure is the greatest feature of the S. Tsuji guitar, which has been highly evaluated by professional musicians.

The guitar makes the sound resonate by the strings shaking the sound board.
In other words, the quality of the sound board determines the sound quality and sound of the guitar. Therefore, it is easy to think that a thinner sound board may vibrate, but the opposite is true. "Bass sound" is important for sound quality. This also applies to audio speakers, which improve the sound quality by producing a solid bass.
You have to make the soundboard thicker to get the bass on your guitar. However, if the sound board is thick, it will not vibrate easily and it will be difficult to produce sound. "Even if the sound board is thick, it vibrates." By eliminating this contradiction, we created a guitar with a high level of sound.