Fro how much Rockit sales their R-50 make it one of if not the best bang for buck IEM out there imo.
This evening I was comparing the R-50 with all my other IEM's which range in price for around $300 to $100 and there wasn't one other IEM I have that sounded significantly better than the R-50. In all actuality I felt like the R-50 was the better all around pair out of them all. Thought the TF10 and maybe the e-Q7 an SE425 would give them a run but none really felt better to me. Now the GR07 can hold its own but for the over all sound quality I still felt like the R-50 was slightly better, they just don't do anything wrong and do most everything right imo.