Let’s take a look at the martin of each part first.

martin guitar of each part first — martin guitar

1. FACE-PLATE

2. BRIDGE PLATE

This maple wood is generally used as a material because of the hardness, the strength of the bolts used to carry the strings, and its shape and size are very sensitive to sound and size.

3.4. X-BRACING

X-shaped keel support can be said to be the mainstream. Martin’s sound beam front (FORWARD SHIFTED) refers to the center point of the X-type forward to about 1 inch away from the sound hole.

5. TONE BARS

Support the X-shaped keel, its shape, size, and position are very elegant on the vibration impact of the panel, so it also determines the tone.

6. SIDE TONE BARS

Support the X-shaped keel, its shape, size, and position are very elegant on the vibration impact of the panel, so it also determines the tone.

Look at several mainstream sound beam structures in Martin.

1. STANDARD X-BRACINGNon-Scalloped, Such As D28

2. STANDARD X-BRACINGScalloped, Such As HD28

The X keel, TONE BARS, AND SIDE TONE BARS were all cut, and this part was done by hand.

3. A-FRAME, Such As D16

Martin‘s relatively new sound beam structure; is different from the above two; x-bracing and TONE BARS are carefully compared with the above two; you will find that this is uncut, but from a certain part, gradually cut to the end.

The shape of the BRIDGE PLATE is also different from the STANDARD, and the type X keel, the BRIDGE PLATE, and the TONE BARS form a relatively closed “BOX,” a structure that reduces the use of the TONE BARS and varies in timbre. His part above the sound hole is not quite like the traditional structure; the structure is A-type, which is also the origin of the name of this sound beam structure. In addition to this structure and tradition, There are some differences between the STANDARD X-BRACING neck connection mode.

4. Hybrid Scalloped A-frame bracing, Such As HD16RA, D1GT

The sound beam design of the hybrid structure adopts the standard X-BRACING Scalloped structure below the sound hole and the A-FRAME design above the sound hole. The tone and color should be similar to the second tone beam.

TOP PLATE

This is the first part, where the second X-BRACING sound beam is above the sound hole, and the TOP PLATE should be designed to strengthen the front end strength of the panel, and the neck is connected to the front end of the TOP PLATE. The difference between A-FRAME and this is obvious. It is uncertain whether the different neck connection is designed for different sound beam structures or whether this sound beam structure is used for different connections of the neck, either the chicken or the egg first, although the neck is inserted.