Paid around 30$ for this little gem   it has the MA900's sound signature, but at much better price and less requirements.  It has angled drivers, which makes for a pretty good stage. it is very light, comfortable, and overall an excellent all-rounder. the bass is of course elevated more than it should be, but not too much (certainly not for bass-heads) the mids are the magic here... Ambient is so good with this one. the treble is rolled off, well, same as the MA900's.   While it may be a little bit less refined in comparison to its bigger...

For those if you who know me, you know i prefer the FR curve to be as neutral as possible.  I have the Etymotic ER4s (ER4p with Etymotic's 75 ohm converter cable), had the HF5, and tried many other IEMs.   I'm Listening sometimes via my desktop amp. (the "Shiit Fulla"), and sometimes straight from my "Samsung Galaxy S4" cellphone (when commuting).   While i pretty much enjoy hearing everything from my ER4s (sometimes I prefer using the 'p' version (w/o the converter) when i desire a tiny bit more warmness to the sound), It is sometimes just too...