Finally, after waiting for more than 2 weeks, the VSD1 I bought on a pre-sale have arrived. They sound amazing to my ears. Huge quantity of bass that does not swallow other frequencies. The bass presentation is better than MH1C and almost similar with GR07 BE. The midrange is thicker and more luscious than MH1C , Compare to GR07 BE and GR07 first version which I also have, they are slightly more forward. Treble is a little recessed or shall I say on the darker side compare to 2 versions of GR07 I have but they are smooth and you can feel its presence when needed and no trace of sibilance. I prefer them over VC1000 but thats only me, YMMV of course. The sound signature is tailored fit to my taste. For 30 USD, you will get an IEM with a mid tier sound plus 2 pairs of silicone tips and 4 pairs of foam tips which the quality is comparable to complys, what can I ask for? This the best 30 USD I ever spent on an IEM. I am not good at using technical terms to describe what I hear so please take this impression with a pinch of salt.