Funny. I wear Phonaks, and I totally agree that the silicon power domes ARE different! I don’t think Phonak & Oticon domes are interchangeable, but what I noticed is that the lower “skirt” on the double dome is made of a VERY flimsy, thin kind of silicon. Perhaps the idea was to make it more flexible to mold to the ear canal?
But like you, I’ve found that ever since I put these new domes on (and the old ones are NO LONGER available even at Amazon), my LEFT ear hurts like the matchstick speaker has given it a contusion. REALLY PAINFUL. The pain radiates from my ear canal into my jaw joint, and it either aches dull for hours or it pulses pain.
Even after I take my aids out, the LEFT ear is still bonging most of the day. I don’t see a solution cuz I’m allergic to any custom mold, but my ears swell up and down throughtout the day, too, so that’s likely another factor. First thing in the morning, I jam the left speaker into my ear canal and wince. Go to the gym, and the ear canal swells up again.
I’ve tried rubbing Salonpas and arnica gel in the general area … but I think it’s the CHEAP, flimsy material being used that provides zero cushioning from the sharp edges of the matchstick speaker. OW.