Production question -- massive "fireworks" bass

[Dusty Chalk]

What the hell is going on at 1:39 of this track? That's more than a kick drum.

On a side note: I challenge anyone with good bass on their headphones to listen to that track and say that the bass at that point isn't "visceral" (NSFW -- "I don't give a fuck you fucking fuck" being amongst the lyrics). You should feel that bass down somewhere around your diaphragm.

[aerius]

What the hell is going on at 1:39 of this track? That's more than a kick drum.

Yeah, it's 2 kick drums, either that or he's got a killer double kick pedal. I've heard pretty much the same thing except a lot louder with a lot more pounding at a Slayer concert.

[hungrych]

Quadruple bass pedal?

[Dusty Chalk]

No, it sounds like just one very massive kettle drum hit...recorded in a cave...I don't think you guys are hearing it. It's like the bass was off for the rest of the song, and suddenly the subwoofer turns on...except I was listening on headphones.

[aerius]

On my admittedly substandard computer setup it sounds like someone turned on the megabass boost for that little stretch of drumming. Sounds like normal bass drums, but with the bass turned way up.