Results 1 to 3 of 3

Thread: JBL 3115A crossover circuit diagram

  1. #1
    Member Mazza's Avatar
    Join Date
    Jan 2019
    Location
    Australia
    Posts
    37

    JBL 3115A crossover circuit diagram

    Hi there,
    I'm trying to track down the 3115A crossover circuit diagram.

    All the links I've found here to the JBL Professional site seem to now be dead.

    I have a pair of 2445's on 2385's, hopefully a pair of 2226's (coming soon) and some salvaged 4331a enclosures that I'd like to mash up into a system.

    Seems this will be a close match for the 4673.

    Any help very much appreciated! Thank you

    Cheers!

  2. #2
    Senior Member
    Join Date
    Apr 2003
    Location
    GTA, Ont.
    Posts
    5,109
    Tough network to copy due to the tapped coil.

    Here it is though.

    Attached Images Attached Images

  3. #3
    Member Mazza's Avatar
    Join Date
    Jan 2019
    Location
    Australia
    Posts
    37
    Thank you EarlK!

    I will use the original schematic for inspiration/a starting point/sense check my design.

    I have already measured the 2445's on the 2385's freestanding and IMHO they perform great, certainly better than I expected....


    Name:  Moved Back Freq Response.png
Views: 1764
Size:  13.9 KB


    Name:  Moved Back Polar.jpg
Views: 1478
Size:  68.1 KB



    I've been able to mock up a crossover that gets them nice and flat on axis with a theoretical 800hz(ish) highpass....

    Name:  First try crossover.jpg
Views: 1770
Size:  12.6 KB


    Name:  First try crossover freq resp.jpg
Views: 1911
Size:  54.2 KB



    But wanted to see how JBL implemented their approach - learn from the masters.


Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Looking for a LX16a crossover schematic diagram
    By Freddymac in forum Lansing Product Technical Help
    Replies: 3
    Last Post: 07-17-2018, 08:44 PM
  2. JBL 3115A crossover
    By chen_sp in forum Lansing Product Technical Help
    Replies: 3
    Last Post: 03-19-2015, 05:03 AM
  3. Altec Lansing Model14 Circuit Diagram Needed
    By jajax! in forum Lansing Product Technical Help
    Replies: 1
    Last Post: 05-11-2005, 04:44 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
  •