Question about KLH ASW10-120 Subwoofer

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Burning smell I had moved from an apt to my home a few months ago - I had plugged my sub in and i started to notice a burning smell - I had replaced the fuse as i noticed it had blown - But then the fuse would keep on blowing - i took off the back panel of the sub and noticed that part of the circuit board and wiring had been fried - the rest of the circuit board appeared to be fine - Can this be repaired by myself or a repair shop - or can it be even repaired - i am strapped for cash since buying a new home and need my theatre system to work - any suggestions?

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The amps do have issues that is for sure - That is where I step in - I can repair your amp and make it so it won't burn up (catch on fire) again. When the amp goes it burns a hole in the board - but it can be repaired. I have done several hundred and all customers are happy :) ... Look for my add here and also on ebay

Posted on Oct 23, 2011

  • Michael Edwards
    Michael Edwards Oct 23, 2011

    No reason to junk the amp - once repaired and upgraded the amp / sub will live a very productive life - the original amp is just a pos - but its not the amp fault - its the companies fault for puting in sub par parts and such that let the amp die ... Thus they want you to buy another one that will die - we fix it and upgrade it so it won't burn up - unless of course you abuse the shiet out of it. Then any amp you buy velodyne or sunfire will nuke as well.

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JUNK IT. These things are FIRE hazzards! The same thing happened to mine, and a lot of other people. READ about others on line.

Posted on Dec 13, 2008

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If you know how to read schematics and replace parts, then these might be helpful to you:

Here are the two pages of schematics from KLH. I wrote to their techdepartment and explicitly asked for permission to share them here.

Here's the lower board, which has the power supply:
KLH ASW 10-120 subwoofer schematic - lower board


Here's the upper board:

KLH ASW 10-120 subwoofer schematic - upper board


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