Question about Altec Lansing VS2421 Main / Stereo Speaker
Usually with audio humming, the cause is due to a bad capacitor on the amplifer portion of the unit. Bad filter capactor in the AC power suppy will cause whats known as AC ripple to enter the system causing motorboating sound or humming. Have the unit check by a technician for poor regulated DC voltage.
Posted on May 21, 2011
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Posted on Jan 02, 2017
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