Thanks a bunch for educating me. I agree the GMB looks very premium, reminds me of the Ultras.
Am I right to assume all Aerodynes have a 7.25” fretboard radius?
That is something I can answer! Most Aerodynes have the curvier radius. Before Fender-Japan was taken over by FMIC back in 2015, the only model I know for certain that had a 9.5" radius was the rare and elusive five-string AJB-V. But nowadays, FMIC has spawned what they're calling the "Aerodyne II". One of it's features is a fretboard radius that's more in-line with Fender's rank & file models.don't know why this one should be different and maybe the listed specs are wrong but it says 9.5"
Fender MIJ FSR Aerodyne Jazz Bass Sienna Sunburst
As for the Siennaburst 'Dynes, I fully understand that they are a limited edition FSR variant, but still…an Aerodyne with a modern-radius'd fretboard AND a plain, unpainted headstock?! That's just sick and wrong, man…like, wrong-sick!
It is my great and sincere hope that Fender is not heading down the path of bland-erizing and homogenizing their Japanese basses to the point where they're practically indistinguishable from their American and Mexican-made cousins.

On a related note, one thing that might catch people's interest is what Fender is calling the "Made In Japan Modern Jazz Bass". Looking at the specs, it's curious blend of design/hardware and it's price-point, it's like they took parts of the Aerodyne concept and turned it into Japan's equivalent of our American Ultra Jazz.
- Body Material Alder
- Body Finish Polyester
- Neck Maple, Compound Back Shape, Modern “C” to “D”
- Neck Finish Satin Polyurethane
- Fingerboard Selected Rosewood, 9.5” to 14” Compound Radius (241 mm-355.6 mm)
- Frets 21, Medium Jumbo
- Position Inlays Ivory Dot (Selected Rosewood)
- Nut (Material/Width) Bone, 1.5” (38.1 mm)
- Tuning Machines Vintage Style
- Scale Length 34” (864 mm)
- Bridge 4-Saddle HiMass Vintage (String-Through-Body or Topload)
- Pickguard 1-Ply Black (324), 3-Ply Aged White Pearl (306, 323, 362), 3-Ply Parchment (384)
- Pickups 4th Generation Noiseless (Bridge), 4th Generation Noiseless (Middle), (Neck)
- Pickup Switching 2-Way Mini Toggle Switch for Active/Passive Mode. In Passive Mode, Only The Volume,Pan and Passive Tone Controls Function. In Active Mode, All Controls Function.
- Controls Master Volume, Pan Pot (Pickup Selector), Treble Boost/Cut, Midrange Boost/Cut, Bass Boost/Cut, Active/Passive Mini Toggle
- Hardware Finish Chrome
Generally, I'd call it "an interesting idea". My only gripes are the chrome knobs over the classic Jazz-style controls and the football-style jack plate that looks like it was clumsily slapped over the binding. While I personally prefer that style of jack, for such a tiny amount of space, I feel a smaller, flush-mounted jack would look better.


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