The original "string-through-body" construction, which was used in previous models and was well-received, has been adopted in the BB PRO/700/400 series. In the "BB PRO/700/400 Series", however, the strings are passed through the bottom of the body, which is cut at an angle of 45 degrees to reduce the stress on the strings at the saddle, and the string vibration loss is significantly reduced and efficiently transmitted to the body.
