I want to get a new bass with a sound that matches the bass tone of groups like Dave Matthews, Jack Johnson, Fleetwood Mac, etc. What kinds of basses fit these kind of sounds? Should I be looking for a Jazz bass or a P-bass? I currently play a Guild B4 acoustic / electric bass through an amplifier and will be selling it soon because I cannot get the bass sound that I'm looking for. My initial thoughts are to pick up a Fender Jazz Bass (don't want to break the bank)but figured I'd double check with the experts! Any suggestions?