Menu
Forum
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Gallery
New media
New comments
Search media
Members
Registered members
Current visitors
Classifieds Member Feedback
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Register
Forum
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
Log in / Join
What’s new
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Menu
Reply to thread
Forum
Car Audio Help
Wiring, Electrical & Installation
Determing Alternator
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Topcat" data-source="post: 330678" data-attributes="member: 550617"><p>here's a cheap easy way to estimate your systems requirements. First - add all the fuse ratings of all your amplifiers. Then divide the total RMS watts by Total Peak watts and multiply this figure times your total fuse rating. This is the approximate current draw for your sound system. For example, you have three(3) amplifiers, Amp 1 has a 100a fuse and is 1000 watts RMS and 1200 watts peak. Amp 2 is 150 watts RMS and 300 watts peak with a 40a fuse. Amp 3 is 75 watts and 150 watts peak and a 40a fuse. Adding the fuse ratings gives you 180 amps. Total RMS watts will be 1225 watts. Total peak watts wil be 1650 watts. so the math kinda looks like this: 1225 / 1650 = .742 x 180 = 133.56 amps. Another good way to estimate your system current draw is to approximate 85 amps per 1000 watt.</p></blockquote><p></p>
[QUOTE="Topcat, post: 330678, member: 550617"] here's a cheap easy way to estimate your systems requirements. First - add all the fuse ratings of all your amplifiers. Then divide the total RMS watts by Total Peak watts and multiply this figure times your total fuse rating. This is the approximate current draw for your sound system. For example, you have three(3) amplifiers, Amp 1 has a 100a fuse and is 1000 watts RMS and 1200 watts peak. Amp 2 is 150 watts RMS and 300 watts peak with a 40a fuse. Amp 3 is 75 watts and 150 watts peak and a 40a fuse. Adding the fuse ratings gives you 180 amps. Total RMS watts will be 1225 watts. Total peak watts wil be 1650 watts. so the math kinda looks like this: 1225 / 1650 = .742 x 180 = 133.56 amps. Another good way to estimate your system current draw is to approximate 85 amps per 1000 watt. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Wiring, Electrical & Installation
Determing Alternator
Top
Menu
What's new
Forum list