Results 1 to 12 of 12

Thread: Proper Wiring of JBL 4313B

  1. #1
    Junior Member
    Join Date
    Oct 2010
    Location
    dc
    Posts
    12

    Proper Wiring of JBL 4313B

    I've gotten a set of these and want to make sure that it is wired up correctly. I have found the network here:

    http://www.jblproservice.com/pdf/Net...%20Network.pdf

    LE10H
    The driver has red and black terminals. There is a green and green/black wire to them. Which goes on which? From the diagram, it looks like green on red and green/black on black, but it actually sounded better with the reverse (green/black on red).

    LE5-9
    The driver has slip on connections. One is male (on driver), the other female (on driver). The wires are white and white/black. Is the picture showing the correct wiring?

    Thanks in advance for help rendered!
    Attached Images Attached Images  

  2. #2
    Senior Member
    Join Date
    Apr 2003
    Location
    GTA, Ont.
    Posts
    5,109
    Quote Originally Posted by boethius View Post
    I've gotten a set of these and want to make sure that it is wired up correctly. I have found the network here:

    http://www.jblproservice.com/pdf/Net...%20Network.pdf

    LE10H
    The driver has red and black terminals. There is a green and green/black wire to them. Which goes on which? From the diagram, it looks like green on red and green/black on black, but it actually sounded better with the reverse (green/black on red).

    LE5-9
    The driver has slip on connections. One is male (on driver), the other female (on driver). The wires are white and white/black. Is the picture showing the correct wiring?

    Thanks in advance for help rendered!
    re; the LE10H connection ,

    Trust your ears here .

    First off , you interpreted the schematic wrongly.
    - Green goes to "+" connector on the woofer / which just happens to be the black connector .
    - Most older JBL drivers use the black terminal to give a forward (+) motion of the piston ( yeh, what were they thinking ? ).

    re; those LE5-9 connectors ,

    - since they're sexed connectors, you can't really mess it up .


    cheers <> Earl K

  3. #3
    Senior Member DavidF's Avatar
    Join Date
    Apr 2003
    Location
    Sonoma County CA
    Posts
    946
    The LE-9 connection looks correct. I think I need to differ with Earl in that, for the woofer, the green lead goes to red terminal on the driver, the green/black goes to black as you interpreted. The woofer should go negative (move inward) with positive pulse from the amp.

    Reversing the woofer lead will effect the response around the woofer-to-mid crossover point and will create a significant deviance from the designed frequency response. Of course I can't comment on whether that is better from your perspective, that's your call. But the design strived for (and succeeded in) a balanced and natural system frequency response.

    Just from my perspective it is hard to argue in favor of messing with the design to improve it. You may have more success in "tweaking" for better sound more effectively with placement of the enclosures within the room, boundaries, etc.
    David F
    San Jose

  4. #4
    Junior Member
    Join Date
    Oct 2010
    Location
    dc
    Posts
    12
    I'll put a battery on it and confirm which side is + and which is -. I'm pretty sure, though, that the green/black on red gave a noticeable improvement when I did some experimenting awhile back, it was not subtle. I'll check again...

  5. #5
    Senior Señor boputnam's Avatar
    Join Date
    Apr 2003
    Location
    northern california
    Posts
    6,142
    DavidF's got it: Stick with the "old" JBL intended cabinet wiring - it is the only way to ensure you are getting the inter-driver (band pass) phasing JBL intended.

    However, to Earl K's point, once you do that, you could invert (as in reverse) the connections to the binding posts on the cabinet rear. That would result in the woofs having forward cone motion on (+), and would keep the relative transducer phasing JBL intended.

    Make sense?
    bo

    "Indeed, not!!"

  6. #6
    Junior Member
    Join Date
    Oct 2010
    Location
    dc
    Posts
    12
    Quote Originally Posted by boputnam View Post
    DavidF's got it: Stick with the "old" JBL intended cabinet wiring - it is the only way to ensure you are getting the inter-driver (band pass) phasing JBL intended.

    However, to Earl K's point, once you do that, you could invert (as in reverse) the connections to the binding posts on the cabinet rear. That would result in the woofs having forward cone motion on (+), and would keep the relative transducer phasing JBL intended.

    Make sense?
    Yes, I will try both options and post my impressions.

  7. #7
    Member
    Join Date
    Feb 2008
    Location
    KC
    Posts
    41
    They made it easy for assembly line workers who didn't have time to ponder such things.
    Black stripe goes to black terminal

  8. #8
    Junior Member
    Join Date
    Oct 2010
    Location
    dc
    Posts
    12
    Well, I'll confirm what has already been said, the green/black stripe wire goes to the black terminal on the woofer. I also experimented with swapping the inputs and it sounds the same to me, at least at the lowish volumes. I haven't really spent much time with these in the last few years, as I no longer trek down into the basement as often as I used to, but I'm rediscovering how fantastic these speakers are. Could they be the best JBL made prior to 1990? I think I need to get a better amp on them...

  9. #9
    Senior Member DavidF's Avatar
    Join Date
    Apr 2003
    Location
    Sonoma County CA
    Posts
    946
    Quote Originally Posted by boethius View Post
    "...Could they be the best JBL made prior to 1990? I think I need to get a better amp on them...
    Yes, they are the best JBL made prior to 1990 (that fit into your trunk).

    Sounds lonely for them down in the basement.
    David F
    San Jose

  10. #10
    Junior Member
    Join Date
    Oct 2010
    Location
    dc
    Posts
    12
    Quote Originally Posted by DavidF View Post
    Yes, they are the best JBL made prior to 1990 (that fit into your trunk).

    Sounds lonely for them down in the basement.
    They are not lonely. They have a bunch of unused weight lifting equipment to keep them company.

  11. #11
    Member Zekeman's Avatar
    Join Date
    Jan 2005
    Location
    Chicago
    Posts
    69
    Man I just checked my woofer connections on my L96's and they have been wrong all along (since I refoamed). Why would JBL use the black terminal as positive?!?! Totally against my convention of positive and negative standards.
    Sansui 1000A, Sansui BA-F1, AU-D11II, TU-9900, AU-717, IB Sub, JBL L96,
    7070, Boston A70, AU-9900, 717, 771, 881, B-2101

  12. #12
    Senior Member Audiobeer's Avatar
    Join Date
    Apr 2003
    Location
    St. Peters, Mo just west of St. Louis.
    Posts
    2,407
    I've had a Harman Kardon 16 and a Mcintosh 2155 hooked up to mine. They are SWEET!

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. proper DCR readings for a Altec 806-A 16 ohm driver
    By SUPERBEE in forum Lansing Product Technical Help
    Replies: 2
    Last Post: 03-28-2009, 02:46 AM
  2. 4430s – in need of some hints for proper use
    By Fangio in forum Lansing Product General Information
    Replies: 26
    Last Post: 12-25-2007, 01:57 PM
  3. Proper surrounds for JBL woofers
    By bigyank in forum Lansing Product Technical Help
    Replies: 23
    Last Post: 03-05-2006, 12:03 PM
  4. Proper Baffle Configuration
    By jbl4ever in forum Lansing Product DIY Forum
    Replies: 3
    Last Post: 01-08-2006, 08:56 AM
  5. Newbie here! Need your collective wisdom on a proper crossover...
    By David Dryden in forum Lansing Product General Information
    Replies: 12
    Last Post: 02-29-2004, 05:10 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
  •