Question about AMP Car Audio & Video
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Posted on Jan 02, 2017
Usually, you can get away with a 12 DC adapter, at about 1 - 2 Amps, preferably switchmode. The center Pin is Positive & the Outer is negative. Most computer "Things" require 5 Volts & under for the IC's etc, and 12 Volts for Other communication IC's and Motors etc. So generally 12 Volts is a good choice. And you could get a 10 Amp unit because it will not matter as a unit will only "Draw" it's maximum, of whatever that is. So if the max draw was say 1 Amp, well a 2 Amp would be fine, but if the reverse were true it could not work. You also need a little head room, too which is why use use a 1:1.5 ratio, IE: The unit draws 5 Amps, your supply should be able to provide, at least 8. Now if you check on your unit it may even tell you the wattage, if this is the case, divide that figure by 12, that will give you the Current required in Amps, just get a supply with slightly more.
Posted on Feb 16, 2010
SOURCE: trying to install subs
If there is no red and black colored input wire connectors on the subs then it doesn't matter.Positive and negative does not really effect speakers and subs since it is DC anyways.
Posted on Jul 26, 2010
Are you sure you getting enough power to push everything. I have seen when the voltage is too low coming in, the amps will shut down so they don't overheat. Once they've cooled off and the volume level is lowered they will kick in again. Low voltage and a heavy draw will create massive amounts of heat.
Posted on May 25, 2011
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