w550i has better speakers. The W800i was designed to be more for the headphone/earphones people. Both the handsets while using earphones have same quality. Your friend perhaps needs to tweak the player a bit.
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AMD 64 3500+ Venice
DFI Lan Party Ultra-D
2* 512 MB PdP Memory with 2-2-5L timings
XFX 7900GT 256 MB Card
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