Just received my new goodies and here are my OOTB impressions.
MusicMaker TKH1
One word: bassy. That sub-bass and mid-bass bump is noticeable and it really works to make the sound full. Somehow V-shaped. Despite its bassy nature, it doesn't get muddy. The mids and treble take a bit of a step back, but it still shows. Male vocals sound great, and so are female vocals (though the mid-bass bump might interfere at times). You can hear lots of detail, which is pretty impressive for a single DD IEM. Soundstage is wide but doesn't beat Havi's. I think these might just replace Havi B3P1 as my top performer.
Einsear T2
I'm really impressed. Neutral with a tiny sub-bass bump. Bass is accurate, fast, and decent. Mids, on the other hand, are exceptional for $15. Vocals are detailed, smooth, and fairly lifelike. There's plenty of detail as well. A tad bright, but not too piercing or sibilant. Soundstage is wide enough but could be better. And man, these IEMs look gorgeous and the build quality is very impressive. Great SQ and build quality for 15 bucks, I will probably keep wondering how in the world they did that.
Urbanfun Hybrid
Neutral, sounds pretty similar to Havi B3P1 without the huge soundstage and rolled-off treble. At first, I thought that the vocals sound unnatural and weird, but I got used to it and accepted it as a different flavor of mids. I don't know how to describe the mids, but they're different. Bass is decently deep. Sufficiently detailed. Soundstage a tad wider than Einsear's. Einsear T2 beat Urbanfun in terms of both SQ and build quality IMHO.
Haven't burned in these badboys yet, so take my opinions with a grain of salt. Hoping they will all sound better after burn-in.
If you like the Einsear T2, you will certainly like the Einsear FIX. I think I'm probably the only one in this forum to own it since there is no thread or post about it! The best $50 I have spent so far on China earphones! Mightily impressed with it.