I have not listened to the King Pro, but I own the Blessing 2 Dusk (that's why I included in the graph I posted). The bass shelve on the King pro is quite a bit higher than on the B2D.
I'm not saying this is a bad thing. I like bass. But a shelve about 5dB more than the B2D should be plenty low end energy, knowing the B2D has already a nice amount of bass.
I still think the Kong Pro has a nice FR. Should be quite a bit of fun.
From measurement it does look like bassy IEM, but I tried with many genres, it is not. The bass is very detailed and textured without any boominess, so my ears don't perceive it as bassy IEM, and to my ears, 'strangely' it sounds quite balanced. King Pro is better than all TFZ I have and I've tried. So far that's the best TFZ model for me. But I haven't tried their newer models since covid started.
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