Can someone clarify the speaker setup on the 8? Are the two grilles on the bottom the stereo speakers, or is one fake and the earpiece doubles as a stereo speaker? From Apple's product page it's not really clear. I'm coming from a 6 and am looking forward to more volume from the speakers, and especially a louder earpiece. With my 6 even with the volume all the way up the earpiece on calls is never loud enough or clear enough.