Here is what was (arguably) the most versatile bass ever put into production. Combining an externally-powered pre-amp with a piezo pickup system and clever use of those capacitor thingies, the Variax allows a pretty close approximation of any of 24 different basses at the turn of a single knob. That includes Precision and Jazz, Stingray and Rickenbacker, Hofner and Thunderbird, etc. etc. etc. The styling (and the weight) are largely derived from a 70s Jazz, and Line 6 were clear