If it's just about subbass than I'd say this is the winner. sounds absolutely sick on my vinyl copy. Actually I haven't got any other track in my collection that the bassline is as loud & sick as this:
if it's about bassline's then my man would be Mortem:
and obviously the bassline chief master Alix Perez:
I can never remember the name of the tune that has the most headfuckingly insane bass I've ever heard. It's an SS production and I think it's D-Power - Self Control (Mental Power Remix) only the og version is on youtube...might not be that track though. Has a vocal that goes "sometimes in your mind, you realize...". Old tune around 95/96 ish.