Hello and thank you for the review. Could you please tell one or two songs which would underline the muddy mid bass over mids. I'm about to buy them and I want to make a testing playlist. Thanks. 

Well mostly anything with deep vocals and songs that have focus on bass guitar. You can try anything from Marcus Miller (it depends on recording itself, so sometimes even that music sounds great). You can try to check music like those two Croatians 2CELLOS (they have 2 albums or you can check on YouTube) or Apocalyptica (anything from, for example, Inquisition symphony) (to me all tracks from Apocalyptica are veiled because of that mid bass sound).
But generally it's not that big of a deal, especially if you don't come from some really clear sounding earphones, but even then you'll get used to them pretty fast... more I listen to them less I mind that mid bass. Also to note if you plan to listen to them outside a lot that mid bass won't be a problem at all, it can just help when the environment is loud, like in the bus or something

Thank you very much. They just arrived, I'm starting the hardcore testing program . The bass nobs are also bass ports? It's them I put tape on? 

Yeah put the tape on these knobs, won't be much of a difference but it is noticeable, tho overall bass will be weaker, which helps with midbass bloat but also reduces sub bass, anyways worth a try

Hi Tail,
 
Do you know how this compare with JVC KENWOOD In-Ear Headphones HA-FX850?
Is this all sounds warm?
 
Can you try out this song https://www.youtube.com/watch?v=o_1aF54DO60
 
Thanks.