He's been pictured with an Auerswald bass back in those days. He usually prefers a Fender Jazz when he plays bass, but the Batman stuff doesn't have that J-Bass tone. He's owned and used Warwicks and a custom Lakland in the past. http://www.auerswald-instruments.com/page4/page4.html I'm surprised that Prince didn't have this clip taken down, but here it is. http://video.google.com/videoplay?d...nTOoH0-wGdkcS4Dg&q=partyman+bass+prince&hl=en
I've read interviews for years saying he prefers mid/late 70's Jazzes. But here he is with a white Thumb Bass... http://video.google.com/videoplay?docid=-498739066594624155&hl=en
with the white warick video, notice the nice bit of overdrive and flanger he uses at the end, sounds like his guitar soloing