You mean with EQ adjustment? I just tried sliding eartips using both included AT small bore eartips and my UE large bore eartips - in both cases bass becomes very powerful (!!!), but upper mids/highs suffer due to loss in clarity. I mean, it's a great solution for an extreme v-shape super-bass sound! Personally, I'm sticking with eartips in default position to expose that pinhole - I love the balanced sound and my clear vocals
Btw, I have been doing more a/b comparison with some other IEMs, especially RE-400 which I find to sound relatively natural in tonality (though more toward warm/neutral signature), and I did notice that DM2 has a slightly different interpretation of higher frequencies. They sound VERY FUN and I LOVE their sound and impact of fast beat/bass attack while still being able to hear details of mids, but I don't want anybody to be mislead these are audiophile quality headphones. But they are FUN, and this is FUN without compromises!
Can't wait to hear KC06, coming sometime next week
Will post my impressions/review and comparison.