Like I said in my initial impressions, these are some of the most transparent and linear IEMs I've experienced. These are not basshead IEMs. They are not colored or "fun," but rather extremely accurate in conveying a recording. You wont get a single bit of extra bass emphasis beyond what is there in a given track. That being said, tracks with a lot of bass are still rendered well, and I think the TG 334 handles most genres with ease.
Jumping in this thread, while recalling my short impression but yet very memorable of the bass response of TO GO!. I think it's clean accurate bass, the kind that studio engineer love and usable in a mastering/critical listening setup.
Anything more than that, I would associate with bass coloration or excitement not intended from the production.