The versatile American Ultra Jazz Bass V is a state-of-the-art instrument that will inspire you to push your playing to new heights. Let’s take an in-depth look at the new flagship Ultra Series from the Big F By Stuart … Both our American Ultra Jazz and P-Bass Bound share 10”-14” compound-radius fingerboards, with 21 medium-jumbo frets. The team spent over two years on intense R&D, analyzing and improving everything on this new flagship line. Condition: … They also welcome the debut of the HiMass bridge and … Item Information. American Ultra is Fender's most advanced series of basses for discerning … American made in Corona, California, the American Ultra J Bass … Fender American Ultra Jazz Bass and Precision Bass review Yet more Fender P and J variants, you say? The Fender American Ultra Jazz Bass is designed for players who want the most advanced, highest performance Jazz Bass ever made. Details about Fender Electric Bass American Ultra Precision Bass® Maple Fingerboard Arctic. Fender Electric Bass American Ultra Precision Bass® Maple Fingerboard Arctic.