Sony tipo speaker poor performance

Location/place: Erode

Name of company/service: Sony Co. India

I have purchased Sony Tipo lastweek.On that day itself I noticed that the speaker sound was very low.Poor sound quality.After a few days,I went to the Sony authorised Service centre along with the CellShop’s assistant and made a complaint,given my handset for inspection.At the evening i was called and they told that its ready.they told the speaker is changed.But the same problem continues in my new brand Sony tipo. I am very much disappointed.Branded Company having so many problems. Don’t buy Sony Product.I have a great faith with Sony Company.But in my experience with this product will make my mind depressed.I can’t tolerate my feelings aganist Sony.