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Try Googling (KLH)(200)(manual) without parens for instructions.

KLH Audio... | Answered on May 22, 2017


Try Googling (KLH)(R7000)(manual) without parens.

KLH Audio... | Answered on Apr 24, 2017


go to this site dexsoft.com/blog. Is under : KLH R7000 no audio repair. Problem solve

KLH R3100... | Answered on Feb 27, 2017


The speakers connections have to come from an amplifier with sound coming from it in the first place. Once connected to the unit the bass signal is then extracted from the signal and the rest of the signal sent to the main speakers. The KLH will not power the main speakers on it's own. The unit will only take the two main stereo channels, from an amplifier, the left and right then go to one set of inputs and they then come out of the other two outputs.

KLH Audio... | Answered on Jan 01, 2017


see if your manual is at this link.
Klh model 990A manual Google Search

KLH Audio... | Answered on Dec 14, 2016


I suggest you go over your receiver set-up instructions. See if you need to set the receiver to acknolwedge the addition of the subwoofer. It should be in your receiver set-up steps. Just as a check, hook up one of your other speakers to the subwoofer lead to see if gets audio signal. I'm guessing the issue is your receiver settings.

KLH Audio... | Answered on Nov 02, 2016


There are a lot of folks who've had power supply issues with this sub. Typically, the large resistors fail, which takes out the capacitors.

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 tech department 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

KLH ASW10-120... | Answered on Oct 29, 2016

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