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Repair / Help Forum => Repair / Help => Topic started by: Sir Thrift-a-Lot on August 08, 2011, 09:38:58 PM

Title: T/S parameter measuring device
Post by: Sir Thrift-a-Lot on August 08, 2011, 09:38:58 PM

Do any of you guys have a T/S measurement device like http://www.parts-express.com/pe/showdetl.cfm?Partnumber=390-804 (http://www.parts-express.com/pe/showdetl.cfm?Partnumber=390-804) or similar?   I found some old speakers that I think I would like to build new boxes for, but would like to calculate the box size correctly.   Thanks.

Title: Re: T/S parameter measuring device
Post by: schwarcw on August 08, 2011, 10:25:21 PM

Interesting device.  It only weighs 1 lb.  I suspect it come with some software?  What are you trying to test?

regards,

Title: Re: T/S parameter measuring device
Post by: schwarcw on August 08, 2011, 10:31:45 PM

Maybe you have researched and found this link: Here  (http://techtalk.parts-express.com/showthread.php?t=186985)

Title: Re: T/S parameter measuring device
Post by: Sir Thrift-a-Lot on August 08, 2011, 10:53:41 PM

I want to test the woofer from an old Voice of Music shallow box (wall mount) system.   I don't know if the box was designed to meet the woofers T/S specs or just designed to hit a niche market.

Title: Re: T/S parameter measuring device
Post by: Anders on August 09, 2011, 12:19:00 AM

I assume you are talking about the Thiel/Smal speaker driver parameters.
I used to have a computer program for this.

Title: Re: T/S parameter measuring device
Post by: Anders on August 09, 2011, 02:06:06 AM

Try this program and see if its of any use.

http://www.linearteam.dk/default.aspx?pageid=winisd (http://www.linearteam.dk/default.aspx?pageid=winisd)

Anders

Title: Re: T/S parameter measuring device
Post by: Sir Thrift-a-Lot on August 09, 2011, 07:45:22 AM

Quote from: Anders on August 09, 2011, 02:06:06 AM

Try this program and see if its of any use.

http://www.linearteam.dk/default.aspx?pageid=winisd (http://www.linearteam.dk/default.aspx?pageid=winisd)

Anders

Thanks Anders.   That program is for calculating the box volume once you have the Thiel/Small parameters (usually given with the driver specs).   The software I need (I believe it requires hardware and software, I found one that required a frequency counter and sine generator) is to actually determine the T/S parameters for an unknown driver.

Title: Re: T/S parameter measuring device
Post by: rgpit on August 09, 2011, 08:55:28 AM

I have the Dayton Woofer Tester and would be happy to make the measurements for you.

PM me and we can make arrangements.

Ron

Title: Re: T/S parameter measuring device
Post by: Sir Thrift-a-Lot on August 09, 2011, 09:36:45 AM

Thanks Ron.   PM sent.