Computer speakers produce muffled kind of music?

Astrosonu Higgs

Honorable
Dec 26, 2013
142
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10,710
I recently changed my speakers as I thought the old one was spoilt as it produced a more muffled sound after using it for about 3 years. It was quite good to begin with. The old one was a Logitech Z103. The new one I got was a Logitech LS21. Both are entry level computer speakers. However, the new speakers still produced the muffled noise when connected to the computer. When i try it with my Samsung S4, it manages to produce a much clearer noise. Is it due to my computer's sound card? My computer is a 3-4 year old midrange ASUS A42J.