This article highlights a specific acoustic guitar effect that is deemed crucial for guitar players. The effect, known as "compression," is believed to be the only one necessary for acoustic guitarists. Compression enhances the sound quality by leveling out the volume of individual notes, resulting in a smooth and even tone. Guitarists are encouraged to experiment with compression settings to find their preferred sound. Ultimately, this effect is considered indispensable for acoustic guitarists seeking optimum sound quality.