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Originally Posted by ANDYS87
Don't confuse household voltage(120/240V AC) with car voltage (12.5-14V DC). Its like comparing apples to oranges. With your car running, say you have 14V DC. Voltage can be related to the "pressure" pushing the current flow(like pressure pushing water out of a hose). 14 Volts of pressure isn't that much...car audio requires lots of current...add to that the fact that with DC voltage, the electrons have to flow from the battery...thru the load(stereo components, lights, etc)...then back to battery. There is a lot of resistance in the wiring. So, those are the reasons why you need humongo cables for high current draw accessories in your car(also why you need huge fuses). Now, in your house............120V AC....you have a lot more "pressure" to push the current(electrons)...also AC voltage is back and forth(sine wave)...Therefore, smaller wires and circuit breakers can be used.
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Since double posting seems to be the thing,
this info ^^ is correct, although it is being taught using different terminology now.
Quote:
Originally Posted by ANDYS87
The foundation for a good system install is to run a large conductor from your battery back to the trunk to avoid voltage drops, and to carry the current your amps need. In the trunk, step the big wire down using a distribution block to smaller wires going to the amps.This is also good info
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Originally Posted by ANDYS87
It is also recommended to have atleast 1 Farad of capacitance for every 1000W of amplifier power.Unnecessary
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Originally Posted by ANDYS87
Capacitors quickly store and release energy that your amps require when a bass note hits.Technically true
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Originally Posted by ANDYS87
This helps reduce the dimming headlights problem. Untrue
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Originally Posted by ANDYS87
Don't skimp on the ground wire either! Add an extra ground from battery under the hood to the body of the car. Also use a heavy gauge wire to ground in the trunk. Match the trunk ground wire size with the large wire coming from the battery to the trunk. Like I said before, in DC circuits, the electrons have to flow thru the entire circuit......so a large power wire and whimpy ground wire isnt good. The small ground wire doesn't allow all the electrons back to the source(conventional current flow), negating the benefits of the heavy power wire.Also true
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