Jazz bass, best slap bass I ever heard.
+1 There simply isn't a better or least tiresome slap tone overall. For me the Stingray for slap is as dead as disco, and I mostly see the 'Ray among rockers for that great ballsy fingerstyle low end.
Ironic too since the Stingray was ostensibly built for slapping. but how ironic that (afaik) it is still MASSIVELY outmatched by the J bass in those genres where slapping is most commonly heard.
There's lots of active dual buckers that sound great too, but the J (and clones) just outshines them all.

