I've been playing around with parametric equalization to make my iem listening experience more enjoyable. I think I have found the answer although I'd guess it's fairly subjective. Sub bass seems to increase the depth of music and actually seems to inject it with more emotion. Anyway, after some PEQ, my new sonic cannons are the TRI x HBB Kai. Bass cannons are a tie between QKZ x HBB Kahn, Kiwi Ears Cadenza, and Beyerdynamic DT770 PRO 32 Ohm.
This morning I decided to try PEQ with my Truthear x Crinacle Zero. Seems the sub on this iem doesn't even turn on till you go below approximately 200 Hz. First impressions were readily a bass cannon. Little while later after the sub woofer hit, definitely another sonic cannon only much more balanced than the Kai.
I wish most reviews atleast spared some effort to show how much you can actually get out of your device if you EQ some. Not EQ-ing is like the flat earther equivalent of the audio world.
Although I would suspect that the DT770 at 32ohms has the least good bass in comparsion to the rest of their DT lineage. My DT900 pro x is a literal beast in comparsion to the also bass heavy Tinhifi P1 Max.
I have no idea why I waited almost to the end of my initial experiment with PEQ before I tested it with my firstborn, the Etymotic ER2XR. As fully expected, they are not the sonic mayhem of the Kai, nor are they the subdued yet balanced canons the truthears are. They are well past the truthears both in isolation and comfort. To my ears they sound equally as balanced if not edging out the Zeros. Guess this post means the prodigal son returned.