Using Wavetools to measure T/S parameters

bm_mode · 31st March 2004, 03:10 AM

Hi,
I've got some cheap 2nd-hand full-range drivers that I'd like to measure a few T/S parameters for (I've never done this before). I've down-loaded Paul Kellet's Wavetools program to use as a signal generator. What level of signal output should I use when I measure the driver's impedance vs. frequency curve? Would the signal output of my laptop be sufficient or should I run it through my 50-watt amp at full volume?

Thanks,
Joseph.

bm_mode · 2nd April 2004, 11:03 PM

Anyone?????

markp · 2nd April 2004, 11:15 PM

Try about 1 watt, 2.83volts into 8ohms.

claudio · 2nd April 2004, 11:21 PM

Hi,
Thiel and Small parameters are refered to small signals, that is, from my point of view, more or less 1 volt. The output of your laptop should be sufficient, but you have to be sure that it is capable to output a clean signal; for sure your ampli should be better, since it is supposed to be Hi-Fi.

Claudio

bm_mode · 3rd April 2004, 05:16 AM

Thanks for your help.

planet10 · 3rd April 2004, 05:36 AM

0.5-1.0 V out of the amp

http://www.diysubwoofers.org/measure.htm

dave

31st March 2004, 03:10 AM	#1
bm_mode diyAudio Member Join Date: Oct 2001 Location: New Zealand	Using Wavetools to measure T/S parameters Hi, I've got some cheap 2nd-hand full-range drivers that I'd like to measure a few T/S parameters for (I've never done this before). I've down-loaded Paul Kellet's Wavetools program to use as a signal generator. What level of signal output should I use when I measure the driver's impedance vs. frequency curve? Would the signal output of my laptop be sufficient or should I run it through my 50-watt amp at full volume? Thanks, Joseph.

2nd April 2004, 11:15 PM	#3
markp diyAudio Member Join Date: Oct 2003 Location: L.A., CA	Try about 1 watt, 2.83volts into 8ohms. __________________ If it sounds good... it is good!

3rd April 2004, 05:36 AM	#6
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	0.5-1.0 V out of the amp http://www.diysubwoofers.org/measure.htm dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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2nd April 2004, 11:03 PM	#2
bm_mode diyAudio Member Join Date: Oct 2001 Location: New Zealand	Anyone?????

2nd April 2004, 11:21 PM	#4
claudio diyAudio Member Join Date: Feb 2002 Location: Italy	Hi, Thiel and Small parameters are refered to small signals, that is, from my point of view, more or less 1 volt. The output of your laptop should be sufficient, but you have to be sure that it is capable to output a clean signal; for sure your ampli should be better, since it is supposed to be Hi-Fi. Claudio

3rd April 2004, 05:16 AM	#5
bm_mode diyAudio Member Join Date: Oct 2001 Location: New Zealand	Thanks for your help.

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