Hey everyone! So I tried out a Fender P-bass that had an 18v pre-amp in it that had a stacked control where the tone knob usually is. It was stacked with bass and treble controls and the volume had a pull feature to run it passive. Anyways, I've sadly now fallen for it (although it has some wear on the body.. nothing that affects it, well.. the price as I will argue with the store) and well, long story short. I'm in love. I want to know some info on it to see if this was a model that Fender had as I know they like to try different stuff with their standard models. Thanks!