+ Reply to Thread
Page 3 of 4 FirstFirst 1234 LastLast
Results 31 to 45 of 50

Thread: Stock Altec/JBL Physical Enclosure Information

  1. #31
    Member Blaster's Avatar
    Join Date
    Jan 2006
    Location
    Ohio
    Posts
    38

    4648

    38-7/8" Tall

    25-1/2" Wide

    17-3/4" Deep

    Two ports each 5-1/4" diameter X 4-1/2" long in front

    Front & rear recessed just under 7/16" about .400"

    CC on the woofers is 15-11/16"

    Either end to first woofer is 4" about 1/2" space left between the drivers

    Front heavy 1" thick MDF the remaining panels are 3/4"

    The outer panel corners are mitered at a 45

    2"X4" internal corner braces and front to rear panel brace in the center

    Loaded with two 2226H 15" drivers mounted with no counterbore behind the drivers
    JBL-BLASTER

  2. #32
    Senior Member mbottz's Avatar
    Join Date
    Apr 2005
    Location
    Dallas Texas
    Posts
    235

    B460 Subwoofer

    Here are the full plans from my other thread. Not sure if this is the correct place to post this.

    MB
    Attached Images Attached Images

  3. #33
    Senior Member
    Join Date
    Sep 2006
    Location
    San Jose
    Posts
    847
    L100's used particle board (ouch!) with walnut veneer. was MDF invented then? internal dampening on the original vertical array L100 was strangely done on only 3 of the 6 sides of the box--the opposing side in every case is left bare. the original L100's had a bit of a boomy bass, so i covered all sides except the baffel board and was surprised that it may almost no difference. the response may have been slightly tighter but was almost the same. a friend told me that insulation does not so much affect the fundamental but, rather higher harmonics in the mid bass. don't know if this is true but my experiment would leave me to believe that he is correct.

    JBL claimed "high density" particle board was supposed to have less resonance than plywood, although
    high end diy of the day liked "marine plywood" which had no voids. As to the glass, it wasn' there to load the woofer or tune the box, although you could do that. Whenever there were two parallel walls one was covered to eliminate standing waves. So, their yours, if they sound better to you with more glass that is fine, but someone didn't screw up they covered three walls instead of six on purpose. I think they were trying to make that box sound just as large as they could an more glass wasn't the way to do it.

  4. #34
    Member Bill Shenefelt's Avatar
    Join Date
    Mar 2007
    Location
    North Huntingdon, Pennsylvania
    Posts
    54

    2121 enclosure volume

    I know the 2121 wants a 0.5 cubic ft enclosure but would think this is over and above the 2121 driver volume. Does anyone have the internal dimensions for a 4343 subchamber for the 2121?
    Bill Shenefelt
    william.shenefelt@verizon.net

  5. #35
    Moderator / Treasurer/Marketplace Czar boputnam's Avatar
    Join Date
    Apr 2003
    Location
    northern california
    Posts
    6,899
    Quote Originally Posted by Bill Shenefelt View Post
    Does anyone have the internal dimensions for a 4343 subchamber for the 2121?
    Hi, Bill...

    Looks like jarrod posted them here, on the 4344 doghouse & ports sizes? thread (see post #1).
    bo

    "Indeed, not!!"

  6. #36
    Member
    Join Date
    Apr 2007
    Location
    Alabama
    Posts
    41
    anyone have the specs for the Baron 030 cab, even though the cabs i have arent the 030, they do house a D130, 075 and the n2400 crossover. thanks.

  7. #37
    RIP 2011 Zilch's Avatar
    Join Date
    Jun 2004
    Location
    Berkeley, CA
    Posts
    9,985
    In the Library....

  8. #38
    Member
    Join Date
    Apr 2007
    Location
    Alabama
    Posts
    41
    sorry mate, new here, didnt see the library good stuff

  9. #39
    Member
    Join Date
    Apr 2007
    Location
    Alabama
    Posts
    41
    can you guys tell me why on most specs i see the d130 was 16 ohm but this signature d130 i have is 8 ohms? thanks

  10. #40
    RIP 2011 Zilch's Avatar
    Join Date
    Jun 2004
    Location
    Berkeley, CA
    Posts
    9,985
    Use "Search" to find the answer. JBL lied.

    Well, fact is, nobody knew what impedance to call "nominal" back then, so anything went, and JBL played fast and loose with the specs according to market demands....

  11. #41
    Member
    Join Date
    Apr 2007
    Location
    Alabama
    Posts
    41
    nice, so they lied about the ohms hehehe i have been looking at box designs in the library and its confusing. on one of the spec sheets, it says not to port the d130, but there is a cabinet design sheet that has a pretty big port drawn on it. so do i port or do i not port? thanks

  12. #42
    RIP 2011 Zilch's Avatar
    Join Date
    Jun 2004
    Location
    Berkeley, CA
    Posts
    9,985

  13. #43
    Member
    Join Date
    Apr 2007
    Location
    Alabama
    Posts
    41
    is the e130 close to the d130? thanks

  14. #44
    Senior Member glen's Avatar
    Join Date
    May 2003
    Location
    Pasadena, Ca.
    Posts
    912

    L250 250ti jubilee

    Earl K dug an image out of an old thread in answer to my quest for dimensions. (Thanks Earl!):
    http://audioheritage.org/vbulletin/s...7&postcount=16
    At the bottom of his post he included a link to the original 250tiJubilee thread which has a lot of good info besides the enclosure dimensions:
    http://audioheritage.csdco.com/vbull...=250ti+jubilee
    glen

    "Make it sound like dinosaurs eating cars"
    - Nick Lowe, while producing Elvis Costello

  15. #45
    Member
    Join Date
    Aug 2006
    Location
    Cambridge, UK
    Posts
    82

    4343 Cabinet Information

    Quote Originally Posted by Giskard View Post
    This thread is for the collection of stock Altec/JBL physical enclosure information. Any information is desired and will be archived. Here is an example of some information that might be of interest:
    Hi Giscard,

    I have tried to assemble in one Word document, information about the 4343 cabinets and how they maybe dissassembled. The information has been gathered from various submissions to the forums.
    Since capturing it there has been some discussion about whether some specific information was correct (concerning an access panel on the rear of the 4343 .. mine appears to have one!).
    Anyway, I wanted to knoe if this is the sort of thing that is intended for this thread and if you think the contents are arranged usefully.
    Ideally the document would be updated as ideas crystallise, but that may be too much to expect.
    Attached Images Attached Images

+ Reply to Thread

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Data Comparison: Stock vs. Aftermarket Recone 2245H Parameters
    By GordonW in forum Lansing Product Technical Help
    Replies: 22
    Last Post: 12-20-2007, 04:27 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