Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Discussion
General Car Audio
Help understanding output vs volume
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="n2audio" data-source="post: 8684753" data-attributes="member: 540940"><p>I will just throw out -- in general -- if you don't blast it that often your alt should be fine.</p><p></p><p>Think of it this way -- your average 50-100w factory set up can honestly get pretty loud, right? You won't be drawing much more from your aftermarket "1000w" set up if you listen at similar levels. But when you start moving from loud to exceptionally loud your power requirements increase exponentially. It takes about a 10x power factor to yield sound that's 2x as loud.</p><p></p><p>Even so -- say you're blasting your 1000w set up at near full volume - and drawing, theoretically, ~100A. It's actually nowhere near that much simply because of the nature of music. There may be bursts that require close to 100A, but when averaged out over a few seconds with the softer/quieter moments it's not likely your actual current draw would exceed 50A or so -- due to something called crest factor (wave peak power vs average).</p><p>Impedance vs resistance is part of it, but crest factor is big as well.</p></blockquote><p></p>
[QUOTE="n2audio, post: 8684753, member: 540940"] I will just throw out -- in general -- if you don't blast it that often your alt should be fine. Think of it this way -- your average 50-100w factory set up can honestly get pretty loud, right? You won't be drawing much more from your aftermarket "1000w" set up if you listen at similar levels. But when you start moving from loud to exceptionally loud your power requirements increase exponentially. It takes about a 10x power factor to yield sound that's 2x as loud. Even so -- say you're blasting your 1000w set up at near full volume - and drawing, theoretically, ~100A. It's actually nowhere near that much simply because of the nature of music. There may be bursts that require close to 100A, but when averaged out over a few seconds with the softer/quieter moments it's not likely your actual current draw would exceed 50A or so -- due to something called crest factor (wave peak power vs average). Impedance vs resistance is part of it, but crest factor is big as well. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Discussion
General Car Audio
Help understanding output vs volume
Top
Menu
Home
Refresh