You got the 5150, but the Transtube Supreme is different than the Supreme 160. The 160 has a green stripe and pretty ugly 80s looking shell, while the Transtube Supreme is all black and 100w! They're probably similar amps but the Transtube has "tube dynamics" knobs I think...
Dan once mentioned one guitarist had a swedish hm-2 sound and the other one had an american sound. Can't remember more infos.
But there's surely hm-2 honk in there on that album
I'm sure you could ask him. If he remembers he will tell you.