Steinberger Spirit XT-25 5-String Bass Guitar, Black The Steinberger Spirit XT-25 has a thru-neck design that is a 3-piece hard maple neck and Rosewood fingerboard. The body wings and top is Maple and the scale length is 34. This Steinberger bass is equipped with two Steinberger Humbucker pickups, Neck pickup volume knob, bridge pickup volume knob, and one Master Tone. The Spirit XT-25 Standard has the Patented Doubleball Bridge with 40:1 ratio direct pull tuners.