Guitar sound plate

A guitar sound plate assembly configured to improve sound quality in a guitar, the guitar sound plate assembly consisting of:

• a rigid plate having a plurality of string apertures formed therethrough, each string aperture having a countersink located on an underside of the rigid plate;
• wherein the rigid plate is sized and configured to be positioned inside a body of the guitar beneath a bridge and aligned with a plurality of bridge pin holes in a soundboard of the guitar;
• wherein the countersink of each string aperture is configured to seat a ball end of a guitar string so as to prevent shifting of the guitar string during use;
• wherein during use the guitar strings pass through the plurality of string apertures, through the plurality of bridge pin holes, over a saddle of the bridge, and along a neck of the guitar to tuning posts;
• and,
• wherein tension of the guitar strings presses the rigid plate against an underside of the soundboard to convey vibrations of the guitar strings into the soundboard to increase volume and sustain, the guitar sound plate assembly excluding screws, adhesives, auxiliary fasteners, and bridge pins and being installable and removable without permanent modification and without leaving marks, holes, or blemishes on the guitar.