Newer Curve....'tinny' voice quality....

I received an insurace new curve, after dropping my old one in the toilet, and the voice quality sounds tinny. Like the volume is turned all the way up and is being pushed hard. But my volume is only at half. My older Curve had amazing voice quality. Does anyone else have this problem? Anything that you all can think of to fix it?

I've:
-Pulled the Battery
-Have a fresh OS install
-Tried a headset

But nothing has changed. I'm just guessing it's the phone. I'm on Sprint btw :)

I turned the audio boost on for my Sprint 8330...Media, Options in BB menu, scroll down to Audio Boost & click to turn on. Below that are diff settings for the Headset.

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