5 strings version of TRBX300 series. TRBX300 is built around a simple principle – your performance. The perfectly balanced, ultra-comfortable solid mahogany body provides the optimum tonal foundation while the Performance EQ active circuitry gives instant access to perfectly dialed-in stage-ready tones coupled with the expressive control you need. Solid mahogany construction. Maple / Mahogany 5-Piece Neck. Slim 43mm nut width. 2-band active EQ with 5-way Performance EQ preset switch.