Question about KLH ASW10-120 Subwoofer
Have the KLH ASW10-120 Powered Subwoofer and it is blowing the fuse 2-3 seconds after power is applied. I hear a humming sound just prior to failure, so I suspect the transformer may be on the fritz as there are no signs on either board of a failed/burned discrete component. What do you think (the speaker is over 8 years old)? Thanks in advance. Also, can a new transformer be purchased that does not "break the bank"?
If it stays on for 3 seconds then it probally is not the transformer. However it may very well be the power amp no way to tell untill we operate. Call Pro Line Music 215-736-8055
Posted on Dec 11, 2009
This model has a high failure rate with the power supply board. Typically, power resistors fail, which in turn burns out the big capacitors.
I have not heard of transformers failing though, so it shouldn't be too much to repair it.
Here are the schematics for the unit: Upper board and Lower board
Posted on Jan 11, 2010
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Posted on Jan 02, 2017
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