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<blockquote data-quote="keep_hope_alive" data-source="post: 7345071" data-attributes="member: 576029">double post, but i was going to type more anyway.&nbsp; //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifpower.&nbsp; what is power?&nbsp; it&#039;s a complete field of study.&nbsp; i&#039;m an electrical engineer with an emphasis on power systems. we&#039;ll keep it simple and not get into complex numbers (not complex as in difficult, but complex as in the square root of negative 1...)the math for power is above.&nbsp; P=VI&nbsp;&nbsp; or power equals voltage times current.&nbsp; that simple.&nbsp; and you can substitute in resistance or impedance as needed.&nbsp; you only need two variables to calculate the other two.in car audio we don&#039;t have easy ways to measure wattage, current, or impedance, so we focus on measuring voltage and resistance.wiki can get you started on power, voltage, current, and ohms.&nbsp; bcae1.com is a good site as well.&nbsp; an electronics course would be a great place to start.installing a car amplifier isn&#039;t complex, but it isn&#039;t easy either.&nbsp; you&#039;re just plugging in wires, but the method of routing, securing, and connecting cables requires experience and skill.&nbsp; most DIY car audio installs are rolling electrical fire hazards.&nbsp; you should understand voltage, current, and resistance in order to properly install an amplifier.&nbsp; that understanding will explain why we do what we do.&nbsp; why do we fuse the power wire at the battery?&nbsp; why do we use grommets when we pass through the firewall?&nbsp; why do we sand away paint when we make ground connections?&nbsp;&nbsp; all answered by electrical theory.while forums are an easy way to learn, books are better.&nbsp; books have more editing and are usually accurate.&nbsp; forums are filled with bad information.&nbsp; it&#039;s tough to tell apart good and bad information when you don&#039;t know the answer already.we&#039;re glad you&#039;re here asking questions.&nbsp; best way to get a handle on installation is to look at detailed build logs.&nbsp; caraudio.com, diyma.com, sounddomain.com all have build log sections with lots of pictures.&nbsp; forums on your specific car are usually a good place for specific wiring information.</blockquote>

[QUOTE="keep_hope_alive, post: 7345071, member: 576029"] double post, but i was going to type more anyway. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] power. what is power? it's a complete field of study. i'm an electrical engineer with an emphasis on power systems. we'll keep it simple and not get into complex numbers (not complex as in difficult, but complex as in the square root of negative 1...) the math for power is above. P=VI or power equals voltage times current. that simple. and you can substitute in resistance or impedance as needed. you only need two variables to calculate the other two. in car audio we don't have easy ways to measure wattage, current, or impedance, so we focus on measuring voltage and resistance. wiki can get you started on power, voltage, current, and ohms. bcae1.com is a good site as well. an electronics course would be a great place to start. installing a car amplifier isn't complex, but it isn't easy either. you're just plugging in wires, but the method of routing, securing, and connecting cables requires experience and skill. most DIY car audio installs are rolling electrical fire hazards. you should understand voltage, current, and resistance in order to properly install an amplifier. that understanding will explain why we do what we do. why do we fuse the power wire at the battery? why do we use grommets when we pass through the firewall? why do we sand away paint when we make ground connections? all answered by electrical theory. while forums are an easy way to learn, books are better. books have more editing and are usually accurate. forums are filled with bad information. it's tough to tell apart good and bad information when you don't know the answer already. we're glad you're here asking questions. best way to get a handle on installation is to look at detailed build logs. caraudio.com, diyma.com, sounddomain.com all have build log sections with lots of pictures. forums on your specific car are usually a good place for specific wiring information. [/QUOTE]

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