I've got a KLH 116810V 10 subwoofer, does anyone have the specs for this sub, I need to get the right amp.

SOURCE: KLH SUBWOOFER - RECEIVER-SURROUND SOUND -5 SPEAKER HOOK UP INSTRUCTIONS

Had the same problem with KLH E-10D Preamped Subwoofer. Afte brief research, I found the problem was with my Pioneer VSX-D509S reciever settings, not the subwoofer. If you have the same reciever, you can go to the pioneer website to download specific model owner's manuals.

http://www.pioneerelectronics.com/PUSA/Support/HomeEntertainment/ch.AV-Receivers.Archived?vgnextfmt=Archived

Select your Pioneer reciever model and it will give you an option to download the pdf manual. Hope this helps.

SOURCE: Subs cut out at low volume no matter the settings

I'm not a complete audio expert but it sounds like somethings over heating or you have a blown out put bridge.

SOURCE: KLH ASW10-120 Subwoofer My KLH ASW10-120

Did you ever find a solution for this problem? I have the exact same thing happening with my KLH subwoofer and I'd love to know how to fix it!

SOURCE: KLH subwoofer Model BASSBite V. Has a bad 60Hz buzz

Before you go throwing money at this problem, try to eliminate any external influences like track lighting. I myself am trying to figure out why mine makes a buzz throughout my system when the lights are on. I already replaced the variable light control with no improvement.

Bad cable ground can let airborne electronic noise into the Sub's amp.

SOURCE: I have bought JAMO sub 250 subwoofer and Pioneer

Hi,
You don't need such cable, although you can use it if you have one. If receiver has only mono SUB output (as majority of receivers have), you just connect it to the Left socket on the Sub and it will work.

Using the Y cable would probably cause that you will fed the same signal to both left and right sockets, but half the intensity (you would divide the output from receiver by 2). So in the end the Sub would receive exactly the same signal as when using normal straight cable.