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Question:

question about sub amplifier power cable?

i cant drill a hole through the firewall because there's too much stuff in the way. so can i run the power cable to the power wire from the radio. the radio power wire is what im talking about. can i do that instead of running it to the battery? thanks

Answer:

there should be a hole with a rubber disc like piece on the fire wall you just gotta feel around or there might be a hole some where on the firewall under neath of the brake booster or something you can stick a wire threw you can hook in to your radio with the power wire for your amp because the amp will blow your fuse everytime and maybe even fry your radio cause its such a thick gauge wire best of luck!
No you can't use the radio power wire to power your amplifier. That circuit wasn't designed to carry the amount of power you'll be needing. As for getting through the firewall, generally you don't need to drill a hole. There are several holes already you can use. Find where the wire harness crosses the firewall from engine side to the cabin. Or in some cars there are circular rubber plugs in the firewall that you can run cable through. Search forums about your car to see if you can find where other people ran their power cables. In any case you need to make sure you run a dedicated, properly fused, properly sized wire. Otherwise you'll blow fuses or burn your car down.
back interior the day whilst audio electronics became into evolving from monophonic sound to stereophonic sound, producers of stereo audio electronics precise the left channel enter for monophonic sound (in case you in elementary terms had one enter) and, if there became into no longer something plugged into the magnificent enter jack, the monophonic sound became into allotted to the two left and precise inputs. on condition that mono is fairly uncommon those days, i don't be conscious of if this continues to be everyday on stereo inputs (which includes powered subwoofers), yet you are able to try it. If it isn't the case (plugging it into the left enter purely is going interior the path of the left amplifier), no count in case you split the sign or no longer is in fact a wash. A subwoofer has 2 voice coils on the motive force, one powered by using the left enter and the different powered by using the magnificent enter. in case you purely have, say, the left enter plugged in, you're in elementary terms using the subwoofer with the left amplifier and voice coil. in case you split it, you're actually using the two voice coils. yet, the split itself cuts the sign point in 0.5. So, you have 0.5 as lots sign enter to each amplifier and the output quantity of the subwoofer heavily is not any distinctive than purely plugging in one enter. one element you are able to desire to do is to get a small, low-value stereo amp or receiver, plug the LFE output into one enter, set the amplifier mode to mono, and run the two line outputs to the subwoofer. that would desire to furnish you 2 complete line point inputs to the subwoofer from the only LFE cable.

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