How does Adam Jones get the fuzzy tone in Prison Sex?

I know that he uses a Dual Recto, Marshall Super Bass, and a Diezel VH4, but Prison Sex sounds a bit fuzzy, like a muff or something is placed in front of his amps. Does anyone have an answer for me?

Thanks in advance
Im pretty sure thats just the super bass (slim chance the recto might be there too). He said sometimes he has his tone knob on zero, so try that.
1965 Fender Mustang not a RI
Squier Vintage Modified Jazz Bass

Peavey Classic 50
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