Their single driver IEM's may be worth looking into as well, although I do not expect them to perform the same way as the R-50. As I understand, could be wrong, they use the same single driver, just different housing/design and the specifications should be:
R-20 31 Ohm/500Hz/109 DB $39.99
R-30 29 Ohm/1000Hz/114 DB $69.99
I'm kind of curious how they match up against other single driver IEM's like the the DBA-03, UE600, Phonak's cheapest model, all units that are relative much higher priced.
I prefer the design of the R-20 better than the R-30 (price as well), so I may take another chance with this one.