I've noticed that my Jazz bass has impressive growl. I know Jazz Baases aren't known to have the low end that the Precision does. But when I listen to John Paul Jones, I'm amazed that his sound is full and round and with little growl. Did he just turn off the bridge pickup and drop the tone knob to 0? Or do contemporary Jazz Basses growl more?
By the way, I can get some well rounded tones with it through my Ampeg, so I'm not having problems with too much mid or treble.