Ampeg SVT4 Fender Am. jazz bass
 

Just bought an SVT4 pro & Fender American Deluxe Jazz bass....looking to get the Duck Dunn sound for our BB tribute band. Any settings suggestions? Oh, also run the 8x10 cab. Thx

EQ flat, (noon) maybe boost the mids a tad. It's in the fingers.

Turn the back pickup off, and with all respect to Ricken, I'd probably keep cut a little bit of treble, boost bass a little, and leave mids at 12:00. But that's me, and a lot depends on your style of playing, and it really is all in the fingers. I've gotten convincing sounds of that nature with all sorts of gear that Duck never used.