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Vandal: I think I did mention that for heavy music users or audiophiles, these are certainly not the speakers. For a casual listener like me, it is pretty good. Besides, no music lover worth his salt will select mid-level 5.1 speakers over good stereo set. My primary intention for these was for Movies and Games, which they fit the bill perfectly, and for the cost they are great. I listen to music mostly while working, but that's just background filler, I don't pay much attention to the quality of output.
The day I would start listening music out of my work hours, I'll invest in decent amp and floorstanders. Till' then these and iPod earbuds are good enough for me.