testing rms power of an amp

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beerstud136

Copper - Posts: 100

Joined: July 04, 2002

Location: Canada

Posted: December 18, 2002 at 2:12 PM / IP Logged

just wondering if there is a way to test the actually output of an amp. there HAS to be some kinda device or something used to rate the power output, but just how?

Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: December 19, 2002 at 8:28 AM / IP Logged

From another post...............set MM to A/C voltage....play some tunes and watch peak voltage....square this then divide that number by the impedance load. This gives a close idea.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: December 19, 2002 at 4:54 PM / IP Logged

Here is an article that goes a little more in depth than Velocity Motors but says just about the same thing. might be where he got it http://www.installer.com/tech/watts.html

the12volt

Administrator - Posts: 3,956

Joined: March 07, 2002

Location: Louisiana, United States

Posted: December 19, 2002 at 5:04 PM / IP Logged

Ohm's law... https://www.the12volt.com/ohm/page2.asp#power

beerstud136

Copper - Posts: 100

Joined: July 04, 2002

Location: Canada

Posted: December 20, 2002 at 4:44 PM / IP Logged

thanks guys

bberman1

Gold - Posts: 2,314

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Location: United States

Posted: December 20, 2002 at 5:04 PM / IP Logged

your welcome

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testing rms power of an amp

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