found the HM-2 in this.
there are different ways, the bandpass got pretty close, but going full bore on the fucker gets the closest so far;
pentode
max gain on everything (clipping, gain 2 and 3)
max starve (means clockwise, fully, to clip it even more)
almost max bass, almost max treble. Go to full and then back it off to suitable sound.
Bass input down (so a bit of bass clip) for that chug. for fatness no clipping.
notch filter, slight resonance, try it in FIRST and SECOND stage, cutoff around 11 o clock (play around with it).
There's your HM-2, without a japanese boss hm-2 sitting right next to me and trying to get as close as possible to nails/black breath etc.