A cantilevered bridge for resonators to permit greater sound production from small sound producing instruments, including a sound producing instrument having an instrument body; a cantilevered bridge lever arm having a first surface and a second surface, with a primary resonator coupled by a biscuit bridge to the first surface of the cantilevered bridge lever arm, and a secondary resonator coupled by a connector to the second surface of the cantilevered bridge lever arm. In a second embodiment, a hinge attachment anchors the cantilevered bridge lever arm to a pivot point within the sound producing instrument.

The present invention relates to a detachable, portable resonance box (1) for providing acoustic stereo sound from stringed instruments and it comprises a primary sound transmission rod (2) which receives and transmits sound vibrations by contacting directly or by means of a connecting apparatus (11) to any area on the body and neck of the stringed instruments, one to four secondary sound transmission rods (3) which are connected to the primary sound transmission rod (2) as a branch or projected downward independently from the primary sound transmission rod (2) and directly contacted to the relevant region of the stringed instrument (13), a primary resonance zone (4), one to four secondary resonance zones (5), a cap (6), a primary resonance cavity (9), one to four secondary resonance cavities (10), a primary sound routing hole (7).

The present invention relates to a detachable, portable resonance box (1) for providing acoustic stereo sound from stringed instruments and it comprises a primary sound transmission rod (2) which receives and transmits sound vibrations by contacting directly or by means of a connecting apparatus (11) to any area on the body and neck of the stringed instruments, one to four secondary sound transmission rods (3) which are connected to the primary sound transmission rod (2) as a branch or projected downward independently from the primary sound transmission rod (2) and directly contacted to the relevant region of the stringed instrument (13), a primary resonance zone (4), one to four secondary resonance zones (5), a cap (6), a primary resonance cavity (9), one to four secondary resonance cavities (10), a primary sound routing hole (7).

This invention is an acoustic guitar with a floating soundboard. The soundboard is attached to the body with shoulder bolts, rubber grommets, washers, and nuts (no adhesive). This allows the soundboard to float, due to the rubber grommets that will provide a great amount of movement. This results in dramatically greater volume, and improved tone (due to less force required on the guitar strings). The material for the body is Rock Maple, and the other materials are Sitka Spruce, Rosewood and Mahogany.

A string instrument contains: a string holding member that holds the end portions of strings; and a body reinforcement member that is inside a body portion and has a joining surface adhered to a front panel, a rear panel, and a side panel. A facing surface of a string holding section of the string holding member has a joining surface fixedly adhered to the front panel, the side panel, and the body reinforcement member. A portion of the front panel and the body reinforcement member is cut out, and the string holding member is disposed as fixedly adhered to the body reinforcement member.

In order to produce a sound post system that is easy to deploy, is position-variable and can be adjusted with little technical outlay even by less technically skilled operators, the disclosure proposes a sound post system that comprises a sound post and an adjustment tool, wherein the sound post comprises a tube that has a contact element hinged to one end of the tube and, at the other end of the tube, a screw mechanism with a support element, said screw mechanism being formed by a mating thread on the tube and a threaded component connected to said support element, wherein a further hinged contact element is disposed on the side of the support element that faces away from the tube and, by actuating the screw mechanism, the distance between said two contact elements can be varied, both the support element and the tube comprising radial holes for the introduction of torque forces, and the adjustment tool comprising a rod for inserting into a radial hole, and a handle that is connected to said rod.

In order to produce a sound post system that is easy to deploy, is position-variable and can be adjusted with little technical outlay even by less technically skilled operators, the disclosure proposes a sound post system that comprises a sound post and an adjustment tool, wherein the sound post comprises a tube that has a contact element hinged to one end of the tube and, at the other end of the tube, a screw mechanism with a support element, said screw mechanism being formed by a mating thread on the tube and a threaded component connected to said support element, wherein a further hinged contact element is disposed on the side of the support element that faces away from the tube and, by actuating the screw mechanism, the distance between said two contact elements can be varied, both the support element and the tube comprising radial holes for the introduction of torque forces, and the adjustment tool comprising a rod for inserting into a radial hole, and a handle that is connected to said rod.

A musical instrument includes a softwood core and an opening formed in the softwood core. The softwood core is formed by combining a plurality of softwood boards. A hardwood plug is disposed in the opening of the softwood core. A first hardwood plate is disposed over a first surface of the softwood core. A second hardwood plate is disposed over a second surface of the softwood core. The hardwood plug extends from the first hardwood plate to the second hardwood plate. The softwood core, first hardwood plate, and second hardwood plate are cut into an instrument body. An instrument neck is attached to the instrument body. A bridge is attached to the hardwood plug using a screw or other fastener extending through the bridge and into the hardwood plug. An opening is formed through the hardwood plug. A string is disposed through the opening of the hardwood plug.

A soundboard for a musical instrument having a body, a rear plate, and a lateral plate, with the soundboard, the rear plate, and the lateral plate defining a sound chamber for the musical instrument. The soundboard extends along a longitudinal axis and has a thickness. The soundboard also has a partial taper recurve asymmetrically disposed around the longitudinal axis. The recurve includes a first recurve section that forms a downward ramp which starts flush with the thickness of the soundboard, a second recurve section that defines the full depth of the partial taper recurve, and a third recurve section that forms an upward ramp which ends flush with the thickness of the soundboard. Also disclosed is a musical instrument comprising the soundboard. The musical instrument may be a guitar.

A soundboard for a musical instrument having a body, a rear plate, and a lateral plate, with the soundboard, the rear plate, and the lateral plate defining a sound chamber for the musical instrument. The soundboard extends along a longitudinal axis and has a thickness. The soundboard also has a partial taper recurve asymmetrically disposed around the longitudinal axis. The recurve includes a first recurve section that forms a downward ramp which starts flush with the thickness of the soundboard, a second recurve section that defines the full depth of the partial taper recurve, and a third recurve section that forms an upward ramp which ends flush with the thickness of the soundboard. Also disclosed is a musical instrument comprising the soundboard. The musical instrument may be a guitar.