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Forum: Lansing Product Technical Help

Questions on repairing, restoring or upgrading factory systems and components from JBL, Altec or LMCo

  1. Sticky Thread Sticky: JBL Technical Notes - LOT'S of them!!!

    Started by DogBox, 06-19-2019 08:01 PM
    • Replies: 9
    • Views: 4,990
    08-22-2019, 07:50 PM Go to last post
  2. Sticky Thread Sticky: 4340 & 4341 references thread

    Started by hjames, 05-11-2007 04:40 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 39,118
    06-11-2016, 12:00 PM Go to last post
  3. Post Sticky Thread Sticky: Stock Altec/JBL Physical Enclosure Information

    Started by 4313B, 09-11-2004 11:56 AM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 117,860
    06-24-2015, 09:05 AM Go to last post
  4. Sticky Thread Sticky: 4343 References Thread

    Started by hjames, 05-30-2007 05:01 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 62,074
    10-30-2012, 11:35 PM Go to last post
  5. Thumbs up Sticky Thread Sticky: JBL Technical Information - Links

    Started by boputnam, 02-06-2008 12:34 AM
    • Replies: 1
    • Views: 28,610
    08-05-2008, 06:54 AM Go to last post
  6. Sticky Thread Sticky: READ ME - Forum Rules

    Started by Don McRitchie, 06-28-2004 07:27 AM
    • Replies: 2
    • Views: 24,783
    10-20-2006, 02:48 AM Go to last post
    • Replies: 5
    • Views: 174
    Today, 09:05 PM Go to last post
  1. JBL 2440 off-center vc gap.

    Started by retro soulman, Today 07:57 AM
    • Replies: 3
    • Views: 54
    Today, 12:22 PM Go to last post
  2. Replacement diaphragm for 2421A?

    Started by Kay Pirinha, Today 09:17 AM
    • Replies: 1
    • Views: 36
    Today, 12:02 PM Go to last post
  3. Altec N-3000-E Mystery

    Started by soundguy64, 12-18-2018 11:08 PM
    • Replies: 1
    • Views: 590
    Yesterday, 05:12 AM Go to last post
  4. 2235 white recone kit

    Started by budney, 02-09-2020 10:32 AM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,192
    04-01-2020, 04:21 PM Go to last post
  5. Underhung voice coil specs

    Started by budney, 03-24-2020 08:58 AM
    • Replies: 9
    • Views: 461
    04-01-2020, 04:03 PM Go to last post
    • Replies: 0
    • Views: 35
    04-01-2020, 03:34 PM Go to last post
  6. L96 question

    Started by taro, 03-29-2020 04:47 AM
    • Replies: 10
    • Views: 316
    03-31-2020, 05:21 PM Go to last post
    • Replies: 0
    • Views: 60
    03-31-2020, 01:03 PM Go to last post
  7. Effects of loss of magnetism?

    Started by Eric M., 03-26-2020 11:44 AM
    • Replies: 11
    • Views: 343
    03-30-2020, 03:26 AM Go to last post
  8. L 91 lenes

    Started by JBeL, 03-26-2020 03:42 AM
    • Replies: 7
    • Views: 358
    03-29-2020, 11:57 AM Go to last post
  9. LSR Speaker Cable Possibilities

    Started by jbl4435, 03-24-2020 03:50 PM
    • Replies: 3
    • Views: 226
    03-26-2020, 05:27 PM Go to last post
  10. Speaker Build

    Started by Mcline5804, 03-17-2020 08:34 AM
    • Replies: 2
    • Views: 224
    03-26-2020, 11:11 AM Go to last post
  11. Help Needed with JBl 2121 midrange dustcap

    Started by jbljr, 03-23-2020 09:30 PM
    • Replies: 1
    • Views: 132
    03-25-2020, 09:17 PM Go to last post
    • Replies: 12
    • Views: 300
    03-25-2020, 03:32 PM Go to last post
  12. 2121H Dust cap issue fixed: improvement

    Started by Goldjazz, 03-18-2020 08:21 PM
    • Replies: 8
    • Views: 418
    03-23-2020, 10:01 PM Go to last post
  13. C500G midrange: mounting

    Started by werewolf, 03-23-2020 02:21 PM
    • Replies: 0
    • Views: 103
    03-23-2020, 02:21 PM Go to last post
  14. JBL 2122H recone question

    Started by bjh, 03-17-2020 08:18 AM
    2122h, 4345, recone
    • Replies: 6
    • Views: 424
    03-22-2020, 10:16 PM Go to last post
  15. LE175 Question

    Started by pmakres1, 03-20-2020 03:08 PM
    • Replies: 7
    • Views: 275
    03-21-2020, 02:25 PM Go to last post
  16. Looking For More Punch From My 2245, 4345 Clone

    Started by robertg, 03-01-2020 03:38 PM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 2,189
    03-21-2020, 09:50 AM Go to last post
  17. JBL 2245H with crazy TS specs measured with Dayton DATS 3

    Started by Morten Krogh, 02-27-2020 11:22 AM
    2 Pages
    1 2
    • Replies: 28
    • Views: 1,641
    03-20-2020, 02:46 AM Go to last post
  18. 4312 woofer

    Started by Rocky, 03-14-2020 06:59 PM
    • Replies: 1
    • Views: 216
    03-14-2020, 08:06 PM Go to last post
  19. Repair/Reinforce JBL 035TIA Tweeter Terminals

    Started by vintagerocks, 03-12-2020 07:38 PM
    • Replies: 2
    • Views: 258
    03-13-2020, 09:56 AM Go to last post
  20. Jbl se401 /402 amp energizer transformer problem

    Started by script56, 02-10-2014 06:05 AM
    • Replies: 3
    • Views: 1,464
    03-08-2020, 04:54 AM Go to last post
  21. BE diaphragms

    Started by dino, 03-04-2020 06:15 AM
    • Replies: 2
    • Views: 323
    03-04-2020, 09:23 AM Go to last post

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