I own IV, and heard V (and VI) at a local meet. FAD Heaven V = clearer II, whilst VI = clearer IV.
But based on my ears, between II and IV, I will pick IV, but between V and VI, I will pick V. II and V are the bass-boosted version of IV and VI.
Now I am saving to buy a used V.
Since we are family here on this train, wanna share this gem :Warning: Spoiler! ( OT tidbits... :P) (Click to show)
just gotten the FAD Heaven4....one outstanding feature of this iem, is the projecting of the soundstage INFRONT of me...
left to right very cohesive merging of the soundfield. (Not so much like a wide 180degree far left or far right.)
enjoying classical music thru my android fone now..very nice indeed.
Switching over to some electronic music..
Bass is kinda like a Mikros...not heavvvvybasssed, but i can hear the taccck the thummmp, without the boooommmm.
Vocals are quite forward, not recessed.
Good value if u can snag one for less then 100. imho