Ampeg SVT CL and 810 fridge. Scoop the Mids and boost the treble. Rotosound swing bass round wounds. You will never completely replicate Squire's clank because the body mass of his Ric was shaved down over the years in refinishing. He also splits the pickup signals. Marshall super lead 100 watts for the bridge pup and Ampeg SVT 2 pros through 810's for the bass/neck pickup. Herco plastic picks plucking just ahead of the bridge pup. He also uses a technique where he contacts the string with the pick, then the edge if his thumb a millisecond later. All together: Chris' sound. You can get close...