My five-string Spoiler of course had AXY's as the OEM fitment.
They were just fine, but over time I had a feeling maybe they were just a bit too honest in their presentation, for lack of a better way to put it. It didn't keep me up nights, but I felt as though I'd like a bit more meat on the bones, sonically. So I switched them both out for FatBoys (thanks to Bob Novy and Mica ! ! ).
It's not a night and day difference. I always explain the difference in tone this way:
If you've spent time in studios or a good home set-up, the AXY's presentation is like very good studio monitors: Very present, but an almost flat response across their soundfield.
In contrast, the FatBoys seem more like very, very good home stereo speakers. A lot of the presence of the monitors, but with a few humps and dips in their response. Think SM57 instead of 441 Sennheisers. They remind me somewhat of MusicMan pickups.
It's all so very subjective, but the idea that any Alembic circuit is too bassy just doesn't register with me.
It can easily be a function of the 24 fret neck (pushing the pickups under harmonic nodes not usually used in 20 or 21 fret bolt-neck instruments) and the neck pickup being right at the end of the pickup because of that fingerboard length: It's just going to sound pretty thick at that spot. You just don't have as much real estate available for pickup placement alongside a 20 fret neck. And of course since Alembic butts the bridge pickup often right next to the bridge, it sounds brighter than most, as few builders push it that far back, and of course, it relatively makes the neck pickup sound just that much fatter in comparison.
Between the AXY's and FatBoys, it's not a huge difference, but I can hear it and prefer it.
Joey