well here are some impressions of the bgvp dmg. I got it with discount thanks to dd audio store.
I found out that the silver filter is the best for me.The soundstage is big. I hear instruments very clearly with some microdetail which I didnt hear before. So u will find the soundstage is very clear in some good mastered tracks. Instrument accuracy is great and mids are good for me. Note this are balanced iems. So dont expect basshead levels. I dont know if you can push it further for basshead levels with a good amp source and with some eq. The bass is pretty controlled. I used a weak source. A smartphone in this case. This iems are very easy to drive. So u dont need a dap for it they sound good with weak sources aswell. With the silver filter I had no issues with piercing highs. They are not very bright or very dark in anyway. Maybe mild dark sound signature but enough to hear the background clearly. thats major go for me. So u can use it on every genre. without problems.
gold filter wasnt enough to me and the black filter made the sound signature muddy in my case
and if the lz a5 filters give better bass performance I will consider them aswell.
I think its good for the price u pay but I dont have much iems in this price range. So I will leave it to you folks for further comparisons about it. I hope u like them all. btw dd audiostore shippes very fast I can recommend them u get a less then a month. So this was my first impressions peace