iphone 6 - i think there will be definite some problem in sound but no one even from support team confirming that your speaker is faulty one or what else? No sound clear...

You are not talking with Apple here - this is a support forum staffed by

fellow users who volunteer their time and expertise. You will not get a

direct response from Apple here.

You may wish to make an appointment at the nearest Genius Bar or with

whoever provides iPhone support for your location to have your iPhone 6

evaluated.