Results 1 to 4 of 4

Thread: 2426j Vs 2427j ?

  1. #1
    Senior Member macaroonie's Avatar
    Join Date
    Jan 2005
    Location
    near Glasgow Scotland
    Posts
    2,156

    2426j Vs 2427j ?

    Are the core drivers the same ? I know 2427J comes with an adapter snout to mate to a 2" rhroat.
    Can't seem to find definitive info from JBL sheets.

    TIA

  2. #2
    Administrator Robh3606's Avatar
    Join Date
    Apr 2003
    Location
    Rocinante
    Posts
    8,350
    Yes it's a 2425S or a 2426 with the screw on horn mounting plate removed and the 2" throat on instead

    Rob
    "I could be arguing in my spare time"

  3. #3
    Senior Member Odd's Avatar
    Join Date
    May 2009
    Location
    Oslo, Norway
    Posts
    658
    43XX (2235-2123-2450-2405-CC 3155)5235-4412-4406-4401-L250-18Ti-L40-S109 Aquarius lV-C38 (030) 305P MkII

  4. #4
    Senior Member
    Join Date
    Apr 2003
    Location
    GTA, Ont.
    Posts
    4,791
    FWIW ( likely some really tedious info ),

    According to the spec sheets;

    The 2425x model used a ring of pure silver ( surrounding the pole piece ) to offset voice-coil inductance ( it shared this design feature with previous alnico models ( see the 2420 cut-sheet ).

    The redesigns of the 1" exit drivers ( 2426/7 ) changed this inductance controllig ring to one that was copper-clad.

    ( One can measure the difference around 12K-15K , if one really works at it ).

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2426J to H conversion
    By landiepete in forum Lansing Product Technical Help
    Replies: 6
    Last Post: 10-14-2016, 07:38 AM
  2. substitute 2426J for 2421B
    By quindecima in forum Lansing Product Technical Help
    Replies: 0
    Last Post: 11-22-2015, 11:33 AM
  3. DIY 2213 + 2426J/2373horn
    By macaroonie in forum Lansing Product DIY Forum
    Replies: 0
    Last Post: 12-11-2013, 05:31 PM
  4. 2344/2426j And 2405h
    By Ralf in forum Lansing Product Technical Help
    Replies: 3
    Last Post: 01-31-2004, 02:15 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •