Replacement AC Adapter for speaker system

) Hello,
i have M5300 speaker system which its adapter died today....i replaced it with a universal ac adapter which outputs 12V - 200mA..
the original ac adapter read 12V - 2.9A ......
after replacing the ac adaptor, i could not pump the sound up as it becomes very distorted esp the bass.....
is this amp difference causing the problem? any suggestion plz
thanks

Welcome to Lenovo Community!  keller
Yes, it should be workable as long as the new AC adapter provides more power than the old one, as well as having the same round connector.
Have a nice day! 
Peter
W520 (4284-A99)
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Dolby Home Theater v4 ; IdeaPad Slate Tablet

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    Welcome to Lenovo Community!  keller
    Yes, it should be workable as long as the new AC adapter provides more power than the old one, as well as having the same round connector.
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