GUITAR SET NECK
The "set neck" method has always been used in acoustic, semi-acoustic and classical guitars and in many fine electric instruments.
The neck is glued to the body using different interlocking methods, which normally extend to the first part of the front pickup.
More complex and expensive to make than the "bolt on" but not as complex and expensive as the "neck through" body, the set-neck is the construction method that Gretsch, Gibson and PRS have always used. The complexity of the construction lies largely in the perfection of the joint and in the calculation (and realization) of the angle of the neck/body slant. The correct adjustment of the bridge and the action depends on this.
As with the "neck through", in the event of a defective neck, a replacement can get problematic and costly.
The "set neck" method requires a lot of care in the design and application stage, but allows the guitar maker to act in a peculiar way on the use of wood to favour the customization of the sound.
This solution generally guarantees a fuller sound than the "neck through" and often even higher in terms of volume and harmonic content. This is also due to the fact that often the "set neck" instruments are completely made of mahogany, a very resonant wood that gives a warm and powerful sound.