Got a pair of Chu 2's, catastrophically lacking bass.

As an enjoyer of good sound, decided to try IEMs for the first time, got Chu 2 without going much into it. Tried them out and first thing i noticed is the lack of bass. I've read a couple posts about this, tried out all the tip sizes that were included. A lot of people here said that the bass in Chu 2 is good and it might be that most people are just used to super boosted bass, but i can't quite believe its that bad. To me the sound is straight up plain. Im also not using any sort of adapters. Is this how its supposed to be, or am i doing something wrong?