I have participated in the previous Nuforce Blue Box (HEM 2-4-6-8) gamble. I got HEM4.
Coming from my old UE TripleFi 10s, I had mixed feelings about the HEM4.
* Much more comfortable fit. Nuforce just want to stay inside your ears unlike the TF10 (even with L/R swap mod).
* More resolving, yet lacking something, muddy. In hind sight, it's probably the V shaped treble of Ultimate Ears.
My advice to new owners: be prepared to be disappointed,...