Results 1 to 10 of 10

Thread: 2405/K130/N2400 Find

  1. #1
    Senior Member Val's Avatar
    Join Date
    Jun 2005
    Location
    Palo Alto, CA
    Posts
    277

    2405/K130/N2400 Find

    I nearly crashed my bike yesterday when I saw this at the side of the road in a "Free" pile. Thankfully one of my kids was home and brought the car to pick it up.

    It sounds great. All the drivers seem very lightly used. I've never heard the 2405 before. Incredible. My plan is to sell the K130 and N2400 and buy a second 2405 to replace my 075's in my living room rig. From what I can tell the 2405 and 075 use the same physical mount.

    How important is it that I match this Alnico 2405 with another Alnico 2405? Flux is flux, right? Would there be a difference with a ferrite 2405?
    Attached Images Attached Images      

  2. #2
    Member
    Join Date
    Dec 2010
    Location
    Australia
    Posts
    40
    wow very lucky find, is it just a single cabinet or a pair? working? it looks like it is in very good cosmetic condition. right place right time. well done. Greg

  3. #3
    Senior Member Val's Avatar
    Join Date
    Jun 2005
    Location
    Palo Alto, CA
    Posts
    277
    Quote Originally Posted by greg32 View Post
    wow very lucky find, is it just a single cabinet or a pair? working? it looks like it is in very good cosmetic condition. right place right time. well done. Greg
    Sounds great. No issues at all.

    Just one cabinet though. Maybe I should have knocked on the door and asked if they have more!

  4. #4
    Senior Member 4343's Avatar
    Join Date
    Jan 2006
    Location
    SJ, CA
    Posts
    515

    Cool

    Quote Originally Posted by Val View Post
    Sounds great. No issues at all.

    Just one cabinet though. Maybe I should have knocked on the door and asked if they have more!
    Maybe it was in such sad shape they were ashamed to put it on the curb!

    As to the AlNiCo vs Ferrite, I use both, but try to keep them in pairs. The AlNiCo magnets ended up in a very small box with 2225's in a vain effort to save weight. Hmm, maybe I should put the 2205A's in there so that all three drivers are AlNiCo. (The mid is a 2461/2307.)

    Maybe post a WTB in the marketplace.
    Mike Scott in SJ, CA
    Drive 'em to the Xmax!

  5. #5
    Senior Member
    Join Date
    Aug 2003
    Location
    La Habra, California USA
    Posts
    1,551
    Nice literal pickup! Looks like the cabinet could be repurposed for a small sub or center channel.
    When faced with another JBL find, Good mech986 says , JBL Fan mech986 says

  6. #6
    Senior Member Val's Avatar
    Join Date
    Jun 2005
    Location
    Palo Alto, CA
    Posts
    277
    Quote Originally Posted by mech986 View Post
    Nice literal pickup! Looks like the cabinet could be repurposed for a small sub or center channel.
    I'm still in shock this was sitting by the side of the road.

    I might actually re-purpose the cabinet to hold my growing collection of vinyl...g

  7. #7
    Senior Seņor boputnam's Avatar
    Join Date
    Apr 2003
    Location
    northern california
    Posts
    7,007
    Quote Originally Posted by Val View Post
    Just one cabinet though.
    Keep circling the block....
    bo

    "Indeed, not!!"

  8. #8
    Senior Member srm51555's Avatar
    Join Date
    May 2013
    Location
    Wisconsin
    Posts
    505
    I think it cool that the date is still on the cork too

  9. #9
    Senior Member Doctor_Electron's Avatar
    Join Date
    May 2003
    Location
    California Central Coast, USA
    Posts
    293

    Crossover Trequency ???

    Quote: " I've never heard the 2405 before. Incredible. "

    Great Scroe ! Use it for HT center speaker? It should punch you right in the face dynamically.

    Question: Hey, please you guys chime in on this, I'm rather curious. That's a 2405 crossed over at 2400 Hz, 12 db/octave?

    How does that work? Seems to fly in the face of all technicality. But I don't doubt that it somehow does function OK.

    I replaced the LE20's in a pair of 4310's with 2405's, adding a -6db fixed resistive pad after the hi freq. lpad, and that worked quite well. But the xover freq. was higher than 2400.

    Regards all, -de-
    Last edited by Doctor_Electron; 07-16-2016 at 02:51 AM. Reason: Loose Nut Behind Keyboard !

  10. #10
    Senior Member Val's Avatar
    Join Date
    Jun 2005
    Location
    Palo Alto, CA
    Posts
    277
    Quote Originally Posted by Doctor_Electron View Post
    Question: Hey, please you guys chime in on this, I'm rather curious. That's a 2405 crossed over at 2400 Hz, 12 db/octave?

    How does that work? Seems to fly in the face of all technicality. But I don't doubt that it somehow does function OK.
    I just looked up the N2400 network spec and, oddly, it crosses over at 2500 Hz, not 2400 Hz. In any case, the spec on the 2405 is usable beginning at 7 kHz so that is kind of dumb to expect the 2405 to deliver much between 2.5k and 7k. This was clearly a DIY cab. Well made but not a great audio design. It's parts now :-)

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. reconed k130
    By lasse in forum Lansing Product DIY Forum
    Replies: 12
    Last Post: 04-09-2009, 11:29 PM
  2. crooked magnet- jbl k130
    By crumb in forum Lansing Product Technical Help
    Replies: 7
    Last Post: 08-18-2007, 03:41 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
  •