RMS, Peak? HUH?!
- Thread starter jdavis
- Start date
Roel
That SMART guy.
That depends on the signal...
The idea is that, to measure the power your speakers have to handle, you look at the amplitude of the signal.
So, you take the mean value of that amplitude. That would be a nice estimate, right? If that signal would be positive all the time, it would be. But it goes negative every once in a while. So this would give you a value near zero.
Now if you take the square of the amplitude, that's always positive. Offcourse, after taking the mean of the square value, you need to take the root out of that again. And for a nice sine, that would be 0.7-something.
And that's how the amazing R.D. Meself invented the amazing RMS value of a signal... You gotta love the man!
The idea is that, to measure the power your speakers have to handle, you look at the amplitude of the signal.
So, you take the mean value of that amplitude. That would be a nice estimate, right? If that signal would be positive all the time, it would be. But it goes negative every once in a while. So this would give you a value near zero.
Now if you take the square of the amplitude, that's always positive. Offcourse, after taking the mean of the square value, you need to take the root out of that again. And for a nice sine, that would be 0.7-something.
And that's how the amazing R.D. Meself invented the amazing RMS value of a signal... You gotta love the man!
darrin_h2000
Banned
Just think of it as 70% of peak.
and stay the hell away from products that use a peak, or peak to peak rating to sell thier amps or speakers. In my experince if rms isnt used the product is usually trash. This is common with swapmeet car stereo crap.
root mean square is the common spec when it comes to efficintcy of power.
you may see on the back of an amp that is rated 70 watts say that its 200 watts by the cord but that rating has to do with consumption not output power.
and stay the hell away from products that use a peak, or peak to peak rating to sell thier amps or speakers. In my experince if rms isnt used the product is usually trash. This is common with swapmeet car stereo crap.
root mean square is the common spec when it comes to efficintcy of power.
you may see on the back of an amp that is rated 70 watts say that its 200 watts by the cord but that rating has to do with consumption not output power.