Not the bass, but a guy I am in a band with has the Variax guitar. At the twist of a knob, he has instant Tele, Strat, Les Paul, Rick, 12-string, Martin, and a bunch of others. It is impressive to say the least.

Line 6 has taken their amp-modelling concept and applied it to guitar, and created the modelling guitar.

Roland actually pioneered this approach with the VG-8 (now the VG-88). It was released at least 10 years ago, and allowed the user to model dozens of different guitars and pick-ups. The VG-8 is a floorboard device, and not built into a guitar the way the Variax is. I think Roland lost a lot of potential sales on the VG-8 (it is an amazing device) because a lot of players thought it was some kind of a synth.

I think these Variaxes are amazing tools for a gigging player who needs to emulate a lot of popular sounds, and does not want to pay for and then lug around a whole closetful of instruments.

Ain't new toys fun?