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 Discussion
General Car Audio
noob queston
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="qtipextra" data-source="post: 2835179" data-attributes="member: 555270"><p>Technically speaking, RMS (Root Mean Square) is an average of all the points on the sine wave. If you look at a sine wave, it has a peak (the highest point of the wave), and also a peak-to-peak value (Highest point to lowest point, which is twice the peak value). The RMS value is exactly .707 times the peak value of the sine wave. It is NOT half of the peak value, like a lot of people think, and amp manufactures try to advertise.</p><p></p><p>So, to put this in perspective, when that amp says 3600 peak, you times that by .707, and that = 2545.2 watts RMS.</p><p></p><p>What a lot of people don't know is that an amp actually <strong>does</strong> put out xxxx watts peak, it is just not measured as peak, it is measured as an average, or RMS, when in use. Basically, you can go by the peak rating as long as you have an o-scope or similar instrument to measure the peak voltage of the wave. But when most people see 3000 peak, they hook up their DMM (which measures RMS, not peak) and try to get it up to 3000 RMS, and it's not going to be good. People confuse the max rating (which is supposed to mean the highest point of the wave) for a maximum RMS.</p></blockquote><p></p>
[QUOTE="qtipextra, post: 2835179, member: 555270"] Technically speaking, RMS (Root Mean Square) is an average of all the points on the sine wave. If you look at a sine wave, it has a peak (the highest point of the wave), and also a peak-to-peak value (Highest point to lowest point, which is twice the peak value). The RMS value is exactly .707 times the peak value of the sine wave. It is NOT half of the peak value, like a lot of people think, and amp manufactures try to advertise. So, to put this in perspective, when that amp says 3600 peak, you times that by .707, and that = 2545.2 watts RMS. What a lot of people don't know is that an amp actually [B]does[/B] put out xxxx watts peak, it is just not measured as peak, it is measured as an average, or RMS, when in use. Basically, you can go by the peak rating as long as you have an o-scope or similar instrument to measure the peak voltage of the wave. But when most people see 3000 peak, they hook up their DMM (which measures RMS, not peak) and try to get it up to 3000 RMS, and it's not going to be good. People confuse the max rating (which is supposed to mean the highest point of the wave) for a maximum RMS. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Discussion
General Car Audio
noob queston
Top
Menu
What's new
Forum list