Jumbo body guitar is more like classical guitar compare with other acoustic guitars. Jumbo acoustic guitar of XYB is also designed classically. BTJ-50S/C has wonderful resonance effect because of giant guitar body as all jumbo guitars have. As jumbo body’s design, the wide range of diapason is secured. Jumbo body guitar can play multi style of music, especially play blues. It is a guitar also frequently appears in band performance. XYB’s jumbo guitar belongs to all solid type, BTJ-50S is introduced solid Spruce top and BTJ-50C is introduced Red Cedar top, both of jumbo guitars are Mahogny back and side.