Graded and tested using customized equipment uniquely engineered for our guitars, this method of pressure testing each solid top ensures the highest levels of stiffness and rigidity along with maximum harmonic vibration.
This benefits the overall tone, projection and resonance of these finely crafted instruments.
On most BSA's the frame number is located in the following places.
It is always stamped; raised numbers are casting part numbers.
Owners with late model BSA's can easily identify the month and year of their machine as the factory adopted a dating system for frame and engine numbers for the 1969 season models.