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Old 30th November 2005, 01:11 PM   #1
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Question measuring t/s parameters

purpose:measuring t/s parameters(fs,vas,Qts,etc)

personage:a poor student who wants 2 diy

tool:a bisjetz computer with winisd(signal generator), a

multimeter,an empty box with mounting hole,some wires.

question:c "purpose"

or any other free method~thanks!

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Old 30th November 2005, 01:34 PM   #2
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Location: Rotherham, England
Have you looked at Rod Elliot's site? His method is easy. There are many other ways, as a search here will show.
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
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Old 30th November 2005, 01:38 PM   #3
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Old 30th November 2005, 02:58 PM   #4
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See this post. It works for subwoofers, but I'm not sure if it will for full range.
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Old 30th November 2005, 03:14 PM   #5
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The method is applicable to any drive unit even a tweeter (as long as it is a normal dynamic system).
__________________ my website for UK diy audio people - designs, PCBs, modules and more.
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Old 30th November 2005, 06:32 PM   #6
jwatts is offline jwatts  United States
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Default My Thoughts

If you have the time to learn, a few tools and some parts from RadioShack. Try this
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Old 2nd December 2005, 10:33 PM   #7
LuigiDJ is offline LuigiDJ  Colombia
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Default audio tester software

Hi, I used Audio Tester ( to measure my speakers T-S parameters, was very easy. 2 measures, one at free air and one with an extra weight on the speaker.
The program works for 30 days (demo version) and uses the output and input on the soundcard of the pc, an extra 10 ohm resistor, some cables and the extra weight, the PC plots the frecuency response and then calculates the T-S parameters.
Give it a try... good luck
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Old 9th December 2005, 01:57 PM   #8
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got it,thanks guys!!
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