Driving bass line in Won't Be Long, from The Hives

Short clip, of a really driving bass line in the song Won't Be Long, from the Hives.
No effects, through Ampeg PF50T transformer out DI, and Fender Mike Dirnt Precision Bass.

[@gypsycrusader1904]

Where do you plug in the headphones in the fender bassman amps

[@A.A1995]

I am not sure, I send XLR to an audio interface where I plug my headphones in.