+ Reply to Thread
Results 1 to 15 of 15

Thread: need some info on reconing jbl 2240h

  1. #1
    Junior Member
    Join Date
    Jan 2009
    Location
    louisiana
    Posts
    9

    need some info on reconing jbl 2240h

    I bought a house a few years ago and found 6 jbl pro series 2245h speakers that need reconing . I consulted a few locals and decided to gut the baskets and prep them for reconing . I taped the voice coil gap on each after using an air chuck to blow them out . The last one i completed was sitting on the table in my shop . My son went in to play his drums , needless to say i picked the basket off of the floor to find that my voice coil gap was closed in on one side . can i use a brass punch and rubber mallet to center my gap again or is this basket ruined for good . HELP !!!

  2. #2
    Senior Moment Member Oldmics's Avatar
    Join Date
    Apr 2003
    Location
    Between Venus and Mars
    Posts
    849
    Dumpster-Sorry

    Oldmics-Certified JBL Pro/Consumer Service Center

  3. #3
    Junior Member
    Join Date
    Jan 2009
    Location
    louisiana
    Posts
    9

    need some info on reconing jbl 2240h

    What Happened To The Gap , What Part Actually Moved

  4. #4
    Senior Moment Member Oldmics's Avatar
    Join Date
    Apr 2003
    Location
    Between Venus and Mars
    Posts
    849
    Probably the top plate which is glued to the magnets surface shifted or the magnet and the top plate together shifted.

    It cant be repaired effectively.

    Oldmics

  5. #5
    Senior Member edgewound's Avatar
    Join Date
    Jun 2005
    Location
    Southern California
    Posts
    2,574
    Quote Originally Posted by Oldmics View Post
    Probably the top plate which is glued to the magnets surface shifted or the magnet and the top plate together shifted.

    It cant be repaired effectively.

    Oldmics
    Sure it can....unless the magnet is cracked into pieces.

    Most of the shifts I've seen are clean adhesive shears. They are as good as new when repaired/recentered.
    Edgewound...JBL Pro Authorized...since 1988
    Upland Loudspeaker Service, Upland, CA

  6. #6
    Senior Moment Member Oldmics's Avatar
    Join Date
    Apr 2003
    Location
    Between Venus and Mars
    Posts
    849
    Edge

    Fraid I"m gonna have to disagree with you on this one.

    Perhaps I should qualify my statement by adding that without degaussing,recentering,reglueing and regaussing it wont be as good as new.

    Those are my policys.

    I know we have both been down this road.Perhaps we can get together some day for a trade of skills and each learn some new tricks.

    Oldmics

  7. #7
    Senior Member edgewound's Avatar
    Join Date
    Jun 2005
    Location
    Southern California
    Posts
    2,574
    Quote Originally Posted by Oldmics View Post
    Edge

    Fraid I"m gonna have to disagree with you on this one.

    Perhaps I should qualify my statement by adding that without degaussing,recentering,reglueing and regaussing it wont be as good as new.

    Those are my policys.

    I know we have both been down this road.Perhaps we can get together some day for a trade of skills and each learn some new tricks.

    Oldmics
    Hey Oldmics,

    You're right about the process....but if you're brave you can skip the de-mag/re-mag with the right technique...and fingers clear.

    I gave the simple Cliff's notes response....didn't want give away any trade secrets on the interweb.

    I'll trade skill with you anytime.....T-Birds in flight.
    Edgewound...JBL Pro Authorized...since 1988
    Upland Loudspeaker Service, Upland, CA

  8. #8
    Senior Moment Member Oldmics's Avatar
    Join Date
    Apr 2003
    Location
    Between Venus and Mars
    Posts
    849
    Quote Originally Posted by edgewound View Post

    I'll trade skill with you anytime.....T-Birds in flight.

  9. #9
    Junior Member
    Join Date
    Jan 2009
    Location
    louisiana
    Posts
    9

    2245s

    well no problem , i found someone who will fix this and actually will keep it in trade , cause i have 3 extra anyways . thanks a million edge and oldmic , for all of your input .

  10. #10
    Senior Member
    Join Date
    May 2008
    Location
    Westchester NY
    Posts
    1,091
    What about the other five 2240 drivers?

    I have two dead 2240 cores that are currently being reconed into 2245s. Apparently, this is the most recommended approach, in part, because the 2240 kits are nearing $300 and the 2245 kits are still reasonably priced.

  11. #11
    Junior Member
    Join Date
    Jan 2009
    Location
    louisiana
    Posts
    9
    i am reconing 3 of the 6 . and will give the other 3 to the man with the kits for a big discount on the kits. im going with 2240s because they are more suited for band applications .

  12. #12
    Junior Member
    Join Date
    Jan 2009
    Location
    louisiana
    Posts
    9
    during the process of preping my 2245 baskets for recone i notied some rust buildup around the voice coil gap on two of them . any suggestions on resolving this issue .

  13. #13
    Senior Member edgewound's Avatar
    Join Date
    Jun 2005
    Location
    Southern California
    Posts
    2,574
    Gun cleaner....400 grit wet/dry.

    CLEAN THOROUGHLY....blow out with compressed air. Don't make the gap any bigger. It's .057"
    Edgewound...JBL Pro Authorized...since 1988
    Upland Loudspeaker Service, Upland, CA

  14. #14
    Junior Member
    Join Date
    Jan 2009
    Location
    louisiana
    Posts
    9
    thanks edge , it seems to me that you are the man when it comes to jbl refurbishing , i am a nurse by trade , and a weekend bluesman . wish i was a little more speaker savy . so sanding this with a 400 grit will work , i hope i can clean the rust out of the gap without messing up .

  15. #15
    Junior Member
    Join Date
    Jan 2009
    Location
    louisiana
    Posts
    9
    can anyone tell me anything about jrx100's i bought 4 of them off the bay for 700.00 bucks they sound great though i already blew a horn driver . i bought an aftermarket for 40.00 and its working great now .

+ Reply to Thread

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Hi JBL L212 info
    By mesudman in forum Miscellaneous Gear
    Replies: 6
    Last Post: 04-08-2007, 11:19 AM
  2. JBL 4350A parts for reconing
    By discus96 in forum Lansing Product Technical Help
    Replies: 3
    Last Post: 12-28-2006, 12:32 PM
  3. Looking for info on JBL D 216
    By wpod in forum Lansing Product General Information
    Replies: 1
    Last Post: 05-15-2006, 07:10 AM
  4. Need info on rare cocrete JBL enclosures
    By eaglecustoms@fi in forum Lansing Product General Information
    Replies: 2
    Last Post: 03-21-2006, 09:50 PM
  5. JBL info needed 125A?
    By Mike Bama in forum Lansing Product General Information
    Replies: 20
    Last Post: 03-11-2006, 07:27 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