Wattage - P.M.P.O. vs RMS

Posted on September 22 2020

Wattage - P.M.P.O. vs RMS

Hello Dear Customers!

Here's a TL;DR!
Check for RMS power handling rather than PMPO for the true quality of a sound system.

It's important to know what kind of equipment you're dealing with when it comes to sound systems. A slight misunderstanding can result in costly damages to your system, but that's why we're here! It's appealing to see a sound system that boasts 4000+ Watts, but in some cases you might be surprised when it suddenly blows out!

Let's shine a spotlight on why this would happen. When a system claims to handle up to 4000+ Watts, in most cases they are referencing the "Peak Music Power Output" or "P.M.P.O". When playing music, the amount of time that music or sound should be hitting the peak typically lasts less than a second. If a system constantly hits the peak, the lifespan of the system drastically shortens.

Most systems work with a safe constant rather than a dangerous peak which is where we introduce "R.M.S." (Root Mean Square). The RMS rating on the system indicates the power that it is designed to work with on a constant basis and should be considered the device's true power handling capability. The Peak tends to be much higher so that it can account for various spikes without blowing out the equipment. Pushing a system beyond its RMS constantly will increase the chances of damaging your equipment.

When purchasing Karaoke equipment, be sure to pay close attention to the RMS value as the equipment now has to account for your voice as well. PMPO does NOT account for the potential power output of the voice. This is a common reason why your system that SUPPOSEDLY can handle a high power rating might blow-out in the middle of a karaoke session.

Remember to check power handling information carefully. Especially if looking for Karaoke equipment.

Thank you for your time and happy singing!

-Sincerely,
Mega Karaoke Center

 

Reference:
Foster, D. M. (2020, January 17) What's the Difference between RMS and Peak Watts. Microwaves&RF.
      https://www.mwrf.com/technologies/systems/article/21120862/

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