Just got my 750i's and I love them! I've never had IEM's that are this comfortable and provide such great sound quality. However, like many other members of this thread, I am experiencing what I think is driver flex in my left side only. When I insert my headphones to my ear canals and push em in, the left side makes this poppy noise. I'm no expert on driver flex, but I think this might be it. Can anyone confirm this?
I also had follow up questions about this:
1) Can driver flex damage the headphones in the long run? What are the implications of driver flex?
2) Does RHA provide replacements for this issue?
Other then that - LOVE IT