Why does the acoustic guitar have a saddle?

Adjust the string height: The saddle sits under the strings and helps determine how high they are above the fretboard. By adjusting the saddle, you can change the action of the guitar, making it easier or more difficult to play.

Affect the intonation: The saddle also affects the intonation of the guitar, which is how accurately it plays in tune. If the saddle is not in the correct position, the strings will be sharp or flat at certain frets.

Transfer vibrations to the guitar's body: The saddle is also responsible for transferring the vibrations of the strings to the guitar's body. This is how the sound is produced. The material and shape of the saddle can affect the tone and sustain of the guitar.

Provide support for the strings: The saddle provides support for the strings and prevents them from rattling against the fretboard. This is especially important for guitars with low string tension, such as classical guitars.