Yamaha RBX 765 EADGC for sale. I replaced the bone nut on this red rbx 765 about a month ago in order to get a different tuning and better quality nut. i had this professionally done and it can be strung lower as well. this bass is a solid player, with a great neck, and good sounding pickups. there is one blemish on the back of the neck, around the 12th fret position i believe. i'm asking 330 shipped.