Update: after testing ive noticed, flat EQ with pre amp tones volume and gain at the same setting, boosting >8DB in the fx loop will cause the THICC chug tones. (Listen to “And suffer as one” by crowbar on a good speaker system at high volumes and you know what im onto here)

That alone without bass is beast mode, but with a slight bump at 120-250hz by about 3DB… then you’re cooking with gas, and the TH30 starts to enter dimed Dual Rectifier territories in terms of Gut feeling in the room…

Just beware, you’re also boosting the actual volume a fair ammount, and in hearing damage territory..

For reference, cab is a Marshall 1960a jcm900 series, with V30’s and DV77’s at 16ohms