4x100, need to get to 2x150, best way to determine wattage?

[RoachForLife 10+ year member]

Using a multimeter is it possible to determine how much wattage is coming out when in 2channel mode? I guess an osciliscope is the way to go but since I dont have one, wondering my next best alternative (if there is one)

Thanks

Click to read more...

 

[Tehgregzor 10+ year member]

I'm curious about that too //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[dragnix 5,000+ posts]

DMM would probably be the next best thing

 

[dragnix 5,000+ posts]

or do it with your ear //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[dumple 5,000+ posts]

a clamp true rms meter?

 

[ultimate157 5,000+ posts]

Using a DMM will tell you the output voltage, and since you know the resistance of the circuit, you can estimate the wattage.

An oscilloscope will tell you when the amp is clipping the output, which will tell you the point where the amp stops producing clean power.

Best way is to have all of the above with a clamp ammeter.

 

[RoachForLife 10+ year member]

how much is a dmm and oscilloscope? Also what the heck does dmm stand for?

Thanks for helping a newb

 

[dragnix 5,000+ posts]

digital multimeter, those run around 50-200bux, depending. Oscilloscope is way more than that.

 

[RoachForLife 10+ year member]

"Using a DMM will tell you the output voltage, and since you know the resistance of the circuit, you can estimate the wattage."

Would you mind giving a brief howto on this. I have a digital Multimeter.

Thanks

 

[ultimate157 5,000+ posts]

Sqrt(Power*Resistance) = Voltage

Sqrt(150*4)=24.5v

Check out the gain setting tutorial at the top of the amp section.