Low level of sound from phone speaker

[avi79]

Hello,

My phone Z3 speakers sound output is very low. Can I get it repaired under warranty? 

[Dingodan1]

I have the same issue. But it is since i got the Marshmallow Updates.

The Ringtone if I got a Call is very quiet. If I'm in another Room and I got a Call I couldn't hear my Phone. Volume is about 100%. The notification Sounds are louder than the Ringtone.

[GeLee86]

I have the same problem,low sound from ear speaker.

I done master resset and repear softwere from pc xperia companion but the low sound from the top speaker and low call sound and the problem is not solved.

Is softwere problem orr speaker problem.