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Audio For those who like to drown out the sound of their exhaust
Sep 14th, 2005, 10:22 PM
#1 (permalink )
13 PSI and lovin it
Join Date: Feb 2004
Location: New Orleans, LA Current Boost :13 PSI
Posts: 3,555
Testing an amplifiers true wattage?
How would I go about testing an amplifiers true outputed wattage?
Is there a way to do this using a multimeter?
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1987 300ZX Turbo, 5 Speed, TurboXS H-34 BOV, WAI,
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Clutch, Wheels, Tint, Paint, Interior, HID
Sep 14th, 2005, 10:32 PM
#2 (permalink )
Nissan Addict
Join Date: Mar 2005
Location: Kansas
Posts: 546
I'm not sure but my MTX came with a sheet that had it's scores.
Sep 14th, 2005, 10:42 PM
#3 (permalink )
^ ownz you all ^
Join Date: Mar 2003
Location: San Antonio, TX
Posts: 2,526
You would need a stable power supply (unless it's a small amp the car's electrical system wouldn't cut it), as well as an oscilloscope and a dummy load.
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Sep 15th, 2005, 06:24 AM
#4 (permalink )
13 PSI and lovin it
Join Date: Feb 2004
Location: New Orleans, LA Current Boost :13 PSI
Posts: 3,555
Well the biggest power supply I have other than my car is a Motorola 40 amp 12V supply. So that doesn't cut it as much as my car does..
Nevermind!
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1987 300ZX Turbo, 5 Speed, TurboXS H-34 BOV, WAI,
Under Construction
Clutch, Wheels, Tint, Paint, Interior, HID
Sep 15th, 2005, 07:53 PM
#5 (permalink )
Atheist Libertarian
Join Date: Sep 2004
Location: Raleigh, NC
Posts: 669
Quote:
Originally Posted by pimpride
I'm not sure but my MTX came with a sheet that had it's scores.
Even with a sheet it is impossible to know under what circumstances the numbers were acheived. For instance, an amp rated for a single channel @ 4 ohms might make, say, 300 watts into a reactive load with only .1% THD but what they might not tell you is that they cooled it in a freezer to -50 degrees. You have to find a manufacturer that is trustworthy and generally that is only found with upper echelon companies.
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