Sorry to hear about your experience meng, I know that feel. I was planning to buy a whole bunch of IEMs for christmas (IM70, GR07BE and Fidue A71). Aside from the upcoming B6, I think I will hold off from buying chinese IEMs for a bit because I have been spending way too much time exchanging back and forth.
And I refuse to pay for faster shipping when shipping back because it will be more than half the cost of the earphone. But I must say Penon has been a really good sport about the whole thing, issuing me a replacement even when Havi themselves declared my unit to be non defective. So all my future purchases will be from them
I might reconsider my decision in the new year and get the IM70 and A71 regardless but the bitter taste will take a while to clear. Maybe some eggnog might help haha.
Oh, to make it worse the B3P1 has developed a slight channel imbalance AGAIN and I am not going to bother with RMA again. Not worth the cost
My only good pair now is the Havi and thank god my Gemini HSR 1000 is getting delivered today
But I will still give the likes of IM70 and sony IEms like MDR 7550 a shot. Might be importing some stuff from japan in the coming weeks