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Thread: JBL D140R Thiele Small parameters ???

  1. #1
    Junior Member
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    JBL D140R Thiele Small parameters ???

    Hello Dear Friends!
    Please help me with information.
    Anybody know JBL D140R Thiele Small parameters???
    I will be very grateful to everyone!!!
    WITH GREAT RESPECT!
    Iskesha

  2. #2
    Senior Member RMC's Avatar
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    Hi Iskesha,

    I had a quick look around and here is what I found on LH forum:

    "Zilch

    07-31-2006, 01:18 AM

    Nope, see line 6 for E140 here:

    http://www.jblpro.com/pub/manuals/enclgde.pdf

    You'll not get extended LE15 bass outta D140. It's a musical instrument bass driver.

    "R" means they were OEM'd to Rogers (organs,) I believe.

    Read up here:

    http://audioheritage.org/vbulletin/showthread.php?t=1315"


    "D140R

    07-31-2006, 08:43 PM

    Nope, see line 6 for E140 here:

    http://www.jblpro.com/pub/manuals/enclgde.pdf

    You'll not get extended LE15 bass outta D140. It's a musical instrument bass driver.

    "R" means they were OEM'd to Rogers (organs,) I believe.

    Read up here:

    http://audioheritage.org/vbulletin/s...ead.php?t=1315

    Welcome aboard....

    Thank you for your helping,

    I saw the line 6 in your document, but I wonder that this Cabinet is too small, it’s only 4 cubic feet. Normally I think the Cabinet for JBL 15” driver is about 5-8 cubic feet. Can I use the 8 cubic feet for D140R?

    I also saw in internet that technical data of d140, is it right?

    Vas 10.5ft3
    Qms 5.0
    Qes 0.22
    Qts 0.21
    Fs 30Hz
    Sens 98dB/W/M
    Max Power 150Wrms"

    "Earl K

    3 Attachment(s)

    D140r

    Hi Tomas

    - I don't know what the "R" is supposed to indicate but here's a bit of trivia ;

    - Gap Width is .057" , just like the D130 , K130, K140, and the "E" series - as well as a whole slew of popular woofers like the 2225h(j) and the 2235h(j).

    - The DCR ( DC resistance ) of a healthy voice-coil is given as 5.1 to 5.9 ohms. This specific DCR "range" is a shared trait with the D140F, the 2216 ( le15b ), 2205a, and the 2202a . These all have 4" wide voice-coils.

    - The stock dustcap for this model is a "Thick Paper" type.

    - FWIW, my Service Manual info says the D140R is most similar to the 2205A .

    ( with those references ; the "F" and "R" could just as easily mean : "Full-Range" & "Restricted-Range" - as determined by the type of "dust-cap" )

    - Here are a few eBay pics for reference ;

    regards < Earl K"

    From DIYAUDIO.COM/forums:

    "2nd August 2016, 01:01 AM #1

    mashaffer

    diyAudio Member

    Join Date: Jun 2004

    Location: Indiana

    JBL D140R Specs

    Somewhere on line (don't remember where) I found these TS parameters for the JBL D140R 15" driver used in Rodgers organ tone cabinets. Can anyone confirm that they are correct?

    VAS=10.5 ft^3
    Qms=5.0
    Qes=0.22
    Fs=30 Hz"


    The first post from Zilch tels you what kind of bass you can expect from D140R and what the "R" means. The partial T/S parameters in the second and fourth posts are basically the same as those of the JBL 2205A. But I think your best bet is the third post from Earl:


    From Earl's post you get a driver DC resistance range, but most interesting is the "my Service Manual info says the D140R is most similar to the 2205A". I think this is the key for your search in absence of a direct JBL statement of D140R parameters, i.e. using those of the 2205A is about as close as you may get.

    So 2205A T/S from JBL's table are: Fs 30 hz; Qts 0.21; Qms 5; Qes 0.22; Vas 297.3 litres; Eff 3.5%; Pe 150W (I'm not sure the D140R would handle this amount of power, prudence); Xmax 2.54 mm; Re 5.5 ohms (right in the middle of Earl's range); Le 1.3 mH; Sd 0.090 sq m; BL 22.3; Mms 105 gr.; Flux 1.2

    Good luck, Regards,

    Richard

  3. #3
    Junior Member
    Join Date
    Aug 2012
    Location
    Ukraine
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    Quote Originally Posted by RMC View Post
    Hi Iskesha,

    I had a quick look around and here is what I found on LH forum:

    "Zilch

    07-31-2006, 01:18 AM

    Nope, see line 6 for E140 here:

    http://www.jblpro.com/pub/manuals/enclgde.pdf

    You'll not get extended LE15 bass outta D140. It's a musical instrument bass driver.

    "R" means they were OEM'd to Rogers (organs,) I believe.

    Read up here:

    http://audioheritage.org/vbulletin/showthread.php?t=1315"


    "D140R

    07-31-2006, 08:43 PM

    Nope, see line 6 for E140 here:

    http://www.jblpro.com/pub/manuals/enclgde.pdf

    You'll not get extended LE15 bass outta D140. It's a musical instrument bass driver.

    "R" means they were OEM'd to Rogers (organs,) I believe.

    Read up here:

    http://audioheritage.org/vbulletin/s...ead.php?t=1315

    Welcome aboard....

    Thank you for your helping,

    I saw the line 6 in your document, but I wonder that this Cabinet is too small, it’s only 4 cubic feet. Normally I think the Cabinet for JBL 15” driver is about 5-8 cubic feet. Can I use the 8 cubic feet for D140R?

    I also saw in internet that technical data of d140, is it right?

    Vas 10.5ft3
    Qms 5.0
    Qes 0.22
    Qts 0.21
    Fs 30Hz
    Sens 98dB/W/M
    Max Power 150Wrms"

    "Earl K

    3 Attachment(s)

    D140r

    Hi Tomas

    - I don't know what the "R" is supposed to indicate but here's a bit of trivia ;

    - Gap Width is .057" , just like the D130 , K130, K140, and the "E" series - as well as a whole slew of popular woofers like the 2225h(j) and the 2235h(j).

    - The DCR ( DC resistance ) of a healthy voice-coil is given as 5.1 to 5.9 ohms. This specific DCR "range" is a shared trait with the D140F, the 2216 ( le15b ), 2205a, and the 2202a . These all have 4" wide voice-coils.

    - The stock dustcap for this model is a "Thick Paper" type.

    - FWIW, my Service Manual info says the D140R is most similar to the 2205A .

    ( with those references ; the "F" and "R" could just as easily mean : "Full-Range" & "Restricted-Range" - as determined by the type of "dust-cap" )

    - Here are a few eBay pics for reference ;

    regards < Earl K"

    From DIYAUDIO.COM/forums:

    "2nd August 2016, 01:01 AM #1

    mashaffer

    diyAudio Member

    Join Date: Jun 2004

    Location: Indiana

    JBL D140R Specs

    Somewhere on line (don't remember where) I found these TS parameters for the JBL D140R 15" driver used in Rodgers organ tone cabinets. Can anyone confirm that they are correct?

    VAS=10.5 ft^3
    Qms=5.0
    Qes=0.22
    Fs=30 Hz"


    The first post from Zilch tels you what kind of bass you can expect from D140R and what the "R" means. The partial T/S parameters in the second and fourth posts are basically the same as those of the JBL 2205A. But I think your best bet is the third post from Earl:


    From Earl's post you get a driver DC resistance range, but most interesting is the "my Service Manual info says the D140R is most similar to the 2205A". I think this is the key for your search in absence of a direct JBL statement of D140R parameters, i.e. using those of the 2205A is about as close as you may get.

    So 2205A T/S from JBL's table are: Fs 30 hz; Qts 0.21; Qms 5; Qes 0.22; Vas 297.3 litres; Eff 3.5%; Pe 150W (I'm not sure the D140R would handle this amount of power, prudence); Xmax 2.54 mm; Re 5.5 ohms (right in the middle of Earl's range); Le 1.3 mH; Sd 0.090 sq m; BL 22.3; Mms 105 gr.; Flux 1.2

    Good luck, Regards,

    Richard
    Hello Dear Richard!
    Many Thanks for such complete and interesting information!!!
    Kind Regards!

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