JBL computer speakers started to crackle and go out intermittently

SOURCE: Won't turn on - lights appear for a second then nothing

i am amazed that just wiggling the plugs where they go into the tower put both of them on!!! i thought i would have to pitch the whole thing after weeks of playing with the controls, plugging and unplugging the speakers...and all it took was wiggling!!!
amo67

SOURCE: What is the dc input for JBL Media 100

They run @ 12 volts 850mA. So an adapter with center pin positive at around 1A(1000mA) would give it enough "headroom". This means it would run cooler and last you longer. Amperage consumption is determined by the power it is producing, how loud you are playing the setup.

SOURCE: JBL Creature Speakers

I fixed a similar problem I was having. It requires a little work.

Take out the four screws from under the broken speaker. Carefully remove the cover, separating the speaker from the base. The two are wired together so don't pull them apart with force. Then remove the single screw, which is much larger the the previous four, and separate the speaker from the top cover.

If you chose you can remove the wires from the speaker, they just snap on, but its not required.

What I found is the speaker issue is not with the wire or the power, but the speaker it's self. On the back there is a big round metal piece. On my speaker that piece was pushed towards the front of the speaker. When I looked at the good speaker, that big piece was all the way back. So I simply pulled it back and presto, instant fix!

I hope this works for you.

SOURCE: JBL Creature 2.1 Left Speaker not working

Hiya

Too late to resolve the original poster's worries, I can assume, but I arrived here when searching on account of the same problem and resolved it. This is going to sound implausibly condescending, I'm afraid (and excuse th elack of technical terminology!)...

I couldn't get my left speaker to work exactly as above, but then looked carefully at the shape of the respective cables leading to the sub. You have to fit the triangle shape of the lead into the triangular shape of the hole. The speaker CAN be connected what *feels* like correctly, but is in fact connected incorrectly (ie, not all the way in).

This is more a problem with the left speaker than the right since it's a triangle and the right is a square, and can be a little fiddly.

Anyone else experiencing the same problem should probably take a quick moment just to check this isn't it! :)