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Amplifier/testing sheet for you to use.

Old 03-13-2008, 06:52 AM
  #11  
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Works fine for me on Acrobat reader 6.0

(and I've changed up the URL for Don to save him some bandwidth!)
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Old 03-18-2008, 10:20 AM
  #12  
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So far it seems to work fine for me, if anyone finds a glitch let me know.

I am now pressing to move to the next stage that will allow the program to auto calculate up to 8 amps(8 inputs) for you via sixteen 12 volt meters, sixteen AC/DC clamp meters and a usb2.0 box. Will take alot longer but still do-able imo. Until then enjoy this one And no I am not gonna patent it, don't care too. I got bigger ideas in the brain, this is a teaser.

oh whats your thoughts so far on this one?
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Old 03-18-2008, 12:51 PM
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Very cool! It'd be interesting to see some screenshots of the results people are getting from their different amps, although the results from the clamp/dmm method need be taken with a grain of salt from what I hear. It'd still be cool to see a collection of people's tests on various amps though! I will try this out with my Z1s this weekend.
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Old 08-24-2009, 02:52 PM
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This works
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Old 08-24-2009, 03:03 PM
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and what is this used for?
comment: how are you calculating output power? you only have AC volts and AC amps, with no powerfactor. Are you assuming speaker load is purely resistive?
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Old 08-24-2009, 08:16 PM
  #16  
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Originally Posted by zoomer View Post
and what is this used for?
comment: how are you calculating output power? you only have AC volts and AC amps, with no powerfactor. Are you assuming speaker load is purely resistive?
What is powerfactor? Subwoofer loads in enclosures are reactive.
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Old 08-25-2009, 12:36 AM
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correct.. most speakers are inductive...so.. in order to calculate power delivered to the speaker you cannot simply multiply RMS volts X RMS amps. That only works if they are in phase. This is basic electronics.
AC power - Wikipedia, the free encyclopedia
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Old 08-25-2009, 06:45 AM
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Can you briefly explain how I get each reading for each category?
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Old 08-25-2009, 08:25 PM
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Originally Posted by zoomer View Post
correct.. most speakers are inductive...so.. in order to calculate power delivered to the speaker you cannot simply multiply RMS volts X RMS amps. That only works if they are in phase. This is basic electronics.
AC power - Wikipedia, the free encyclopedia
I stand corrected...measured AC RMS volts X AC RMS AMPS is power dissipated by the speaker.
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Old 05-02-2010, 03:07 AM
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Thanks for a marvellous tool.
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