nah, this ain't a noob question
as always, the rig plays a part. but for this one, i think the most important factor in his sound is the bass he uses
Billy Cox, legendary member of Jimi Hendrix's Band of Gypsys and Gypsy Suns and Rainbows has joined the Cort family. Billy has designed his Freedom Bass. A reversed "P" bass and "J" bass hybrid with active to passive control, stacked volume and tone knobs and a 24 fret full access neck joint, to his specifications.
http://www.guitarshop.net/cortfreedombass.htm
i'm guessing he uses all 3 pickups to create such a thick sound. if you're serious about replicating his tone, then maybe you could try upgrading the pups to triple coils. not too sure though
if you want to imitate it, maybe you could roll the tone off, boost the bass and a bit of low mids, cut the high mids and treble. heavy compression