Question about MidiLand MLi 691PA Computer Speakers
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Posted on Jan 02, 2017
SOURCE: LCW-0120 Labtec speaker polarity
I am assuming that you already
know which wires go to which speaker and all you need to know is which
one is negative and which one is positive. Here is one way to find out.
If you can access the speakers at all or at least see the cones, it will be easy.
Take a small 1.5v battery and connect it to the wires in question, connect one end to the positive(+) and the other to the negative (-) side of the battery, don't do it for a long time, just enough to observe movement on the speaker cones. Observe the cones of the speakers, if the cones get pushed or moves out, take note of the polarity of the battery because now you know which is which. Now if the cones, move inward or it gets sucked in when you apply voltage, then it's backwards.
Posted on Feb 11, 2008
SOURCE: JBL Media 100 Speaker power?
Buy a power adapter from radio shack or similar place. You need a 1000mA 12 volt dapter. Just make sure it is rated @ or above 1000mA to avoid the adapter heating up and possibly burning. The whole setup is rated @ 850mA wich 1A(1000mA) should handle with enough head room. But it might run you about $15-20. I would just buy a cheap radio with rca inputs/aux input and use that. I got one from Walmart for around $40 and it plays CD's & AM/FM.
Posted on Jun 09, 2009
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