Page 1 of 2 12 LastLast
Results 1 to 15 of 18

Thread: Thiele-Small parameters for Trusonic?

  1. #1
    Senior Member jackgiff's Avatar
    Join Date
    Nov 2004
    Location
    Prescott, AZ
    Posts
    277

    Thiele-Small parameters for Trusonic?

    I have been an Altec Lansing fan since buying my first pair of 846A Valencia's at the factory in Anaheim in 1967 ( I now have three pairs), but am also interested in Trusonic products. I want to build a home theatre system using 120FR's in front and center, and 80FR's for the rear. I need TS parameters to help build enclosures that will sound right. Can anyone help?
    Thanks, Jack Gifford

  2. #2
    Senior Member GordonW's Avatar
    Join Date
    May 2003
    Location
    Marietta/Moultrie GA USA
    Posts
    1,455
    If all else fails, you can send the drivers to us where I work (Audio Atlanta, Marietta GA, 770-499-0145). We actually have gotten enough requests for driver measurement, that we've instituted a process that for a standard $20 charge, we'll measure the complete T/S parameters of a driver, in LEAP/LMS. I will also give suggested woofer cabinet alignments... let me know the cabinet volume you plan to use, and I can make a good ballpark suggestion to let you get started in tuning, once measurements are done...

    Regards,
    Gordon.

  3. #3
    Senior Member jackgiff's Avatar
    Join Date
    Nov 2004
    Location
    Prescott, AZ
    Posts
    277
    Thanks Gordon, that sounds great. I have put a few 80FR's in other cabinets, but want to build these enclosures to optomize the performance. Is one of each driver enough to get a good read? I needn't send the Trusonic tweeters, since they are sealed, right? I will wait til after the Christmas holidays to send them.

    Thanks, Jack Gifford

  4. #4
    Senior Member Don C's Avatar
    Join Date
    Apr 2003
    Location
    Santa Rosa CA
    Posts
    1,722
    I don't have the T/S parameters, but you might enjoy this.
    Attached Images Attached Images  

  5. #5
    Senior Member Don C's Avatar
    Join Date
    Apr 2003
    Location
    Santa Rosa CA
    Posts
    1,722
    Too bad that you cant just send for these plans anymore.
    Attached Images Attached Images  

  6. #6
    RIP 2009
    Join Date
    Feb 2004
    Location
    Rohnert Park, CA
    Posts
    3,785
    Here's a good database - unfortunately, it doesn't have any Trusonic:

    http://www.thielesmall.com/database.asp

    John

  7. #7
    RIP 2011 Zilch's Avatar
    Join Date
    Jun 2004
    Location
    Berkeley, CA
    Posts
    9,963

    And,

    Do we know what a "Toroid" tweeter is?

  8. #8
    Senior Member jackgiff's Avatar
    Join Date
    Nov 2004
    Location
    Prescott, AZ
    Posts
    277

    Thanks Don and John

    Yes it would be nice to be able to order the plans, but that would take all the fun out of making new ones. After Gordon nails down the T-S parameters, I will send them to the T-S database, so others interested in Trusonics will have access to them. Thanks, guys, you have been very helpful.

    Jack Gifford

  9. #9
    Senior Member GordonW's Avatar
    Join Date
    May 2003
    Location
    Marietta/Moultrie GA USA
    Posts
    1,455
    Quote Originally Posted by jackgiff
    Thanks Gordon, that sounds great. I have put a few 80FR's in other cabinets, but want to build these enclosures to optomize the performance. Is one of each driver enough to get a good read? I needn't send the Trusonic tweeters, since they are sealed, right? I will wait til after the Christmas holidays to send them.

    Thanks, Jack Gifford
    One should do it. The manufacturing processes at Stephens were good enough, that any minor differences in the drivers should "fall out in the wash"... there may be trivial differences, but they should 'cancel out' with respect of the driver response in-box.

    Regards,
    Gordon.

  10. #10
    Senior Member Don C's Avatar
    Join Date
    Apr 2003
    Location
    Santa Rosa CA
    Posts
    1,722
    Quote Originally Posted by Zilch
    Do we know what a "Toroid" tweeter is?
    I think that you do know, but I'll post this other page anyway.
    Attached Images Attached Images  

  11. #11
    Senior Member jackgiff's Avatar
    Join Date
    Nov 2004
    Location
    Prescott, AZ
    Posts
    277

    Thanks Don

    I appreciate the copy of the data sheet. After looking at the one you sent with the Trusonic cabinets, I looked at the ones I am using in my computer office. I believe they are the same as the ones for 12 inch systems on the data sheet. Same measurments, same grilles. They are loaded with 120W's and a smaller tweeter that the 5KT. I am enclosing a couple pix of my speakers. I really think this site has some great speaker knowledge, and now that I have time to spend learning, maybe I can learn how to design cabinets to get best performance, rather than just trial and error. I may even become a JBL guy.

    Thanks, Jack Gifford
    Attached Images Attached Images   

  12. #12
    Senior Member spkrman57's Avatar
    Join Date
    Feb 2005
    Location
    Columbus, Ohio
    Posts
    2,018

    Any progress on the T/S parameters yet Gordon?

    Every once in awhile I see some of these units pass by. I'm hoping to snag a pair of FR 150's one of these days soon as I had a lead from one of my friends who says they know someone who may have them. Will have to see what shape they are in first.
    Ron

  13. #13
    Senior Member jackgiff's Avatar
    Join Date
    Nov 2004
    Location
    Prescott, AZ
    Posts
    277

    Here they are.

    The problem was not with Gordon, I just got involved in some other things, and did not get the numbers posted. The 80FR and 120FR are done, but I haven't sent Gordon a 150FR yet.

    Here is the 80FR
    Attached Images Attached Images  

  14. #14
    Senior Member jackgiff's Avatar
    Join Date
    Nov 2004
    Location
    Prescott, AZ
    Posts
    277

    And here is the 120FR

    120fr
    Attached Images Attached Images  

  15. #15
    jmmhbca
    Guest

    Exclamation Stephens Trusonic 80 FR and 5KT

    Do any of you know of anyone who can recone an 80 FR and repair a 5KT?
    Thanks!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Gauss 2381
    By Phil Jeffery in forum General Audio Discussion
    Replies: 10
    Last Post: 03-08-2004, 07:52 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •