KLH Audio Players & Recorders - Recent Questions, Troubleshooting & Support


Normaly C26 has turned bad. It's 22uF/25V and is easy to access when module is disassembled.

KLH Audio... • Answered on Jan 18, 2021


I wrote to KLH and they sent me the schematics for the upper and lower boards. I asked if I could share them, and they gave me permission to post them for use here.

Have fun!


KLH ASW 10-120 subwoofer schematic - lower board

KLH ASW 10-120 subwoofer schematic - upper board


KLH ASW10-120... • Answered on Dec 23, 2019


disconnect offending unit. then play see if same response occurs on the alleged normal unit using the offending cable interchange cables see if you get same result. Means it's bench repair ,internal electronics require specialist equipment to locate the offending item.

KLH Audio... • Answered on Oct 31, 2018


HelloIt will be very difficult to get its printed circuit board as it is. You can buy a populated board to your KLH from Ebay. Just search in with its part number.

KLH ASW10-120... • Answered on Oct 16, 2018


You could check it by having the unit switched on a touching each of the pins of the device with an insulated tool. Making certain you don't short any of the pins together. You should hear a buzz on each channel. If you get nothing on the right then it could well have gone. However that is a lot of messing about, as the device can be purchased for around £12, it could be easier just to replace it and see if that cures it. After all it is the device that does most of the work, so the chances are it's gone!

KLH Audio... • Answered on Oct 01, 2018


If you can post a picture of the fuse it might help in tracking one down. However I should point out that fuses rarely blow on their own. And one blown is a sign of a serious overload, probably in the main amp or power supply section.

KLH Audio... • Answered on Jul 09, 2018

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