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Thread: 4345 Project

  1. 01-28-2009, 12:49 PM #31
    JBLCanuck
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    I'm pretty sure the 2306 is just an aluminum version of the 2307...no?
    Anyway, if you haven't made them...I'll make you a pair.
    Basically, in my opinion, the brackets are not needed.
    Usually horns are braced like this for shipping reasons. Once the speakers are sitting in your livingroom...that horn/baffle is plenty strong to support the big heavy magnet but I think JBL braced them because in shipping these big beasts...there's a lot of leverage hanging out there to damage the plywood baffle.
    That's my non-expert Canuck opinion
    That said...they certainly don't hurt.
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  2. 01-28-2009, 12:56 PM #32
    BMWCCA
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    Quote Originally Posted by JBLCanuck View Post
    I'm pretty sure the 2306 is just an aluminum version of the 2307...no?
    Anyway, if you haven't made them...I'll make you a pair.
    Basically, in my opinion, the brackets are not needed.
    Yes, simply un-painted, I'm told. And you're probably right about their necessity. But if you do them, I'd be happy to get a pair from you. If we didn't dislodge them in our long hand-truck climb down NewZenith's tall and winding stairway, they're probably substantial enough as-is!
    That said...they certainly don't hurt.
    That's what I figure.

    Thanks!
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  3. 01-28-2009, 01:08 PM #33
    Chas
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    I had a pair of 4325's with the 2307/2420 that was unsupported and never had any problems. Like you say, there must have been a high incidence of shipping damage that spurred JBL to start installing supports.

    I can confirm, the brackets are unpainted in my 4345's.
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  4. 01-28-2009, 08:54 PM #34
    John
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    Quote Originally Posted by JBLCanuck View Post
    I'm pretty sure the 2306 is just an aluminum version of the 2307...no?
    Anyway, if you haven't made them...I'll make you a pair.
    Basically, in my opinion, the brackets are not needed.
    Usually horns are braced like this for shipping reasons. Once the speakers are sitting in your livingroom...that horn/baffle is plenty strong to support the big heavy magnet but I think JBL braced them because in shipping these big beasts...there's a lot of leverage hanging out there to damage the plywood baffle.
    That's my non-expert Canuck opinion
    That said...they certainly don't hurt.
    I see no problem with 3/4" 13 ply Baltic Birch supporting the load of a small 2425+2307 horn.
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  5. 02-06-2009, 10:18 AM #35
    JBLCanuck
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    Today might just be veneer day...wish me luck!
    I still need one more coat of blue & spray the bottom & backs but I think I'll do that after I finish the veneer process.
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  6. 02-06-2009, 01:09 PM #36
    SMKSoundPro
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    Looks Great! Don't stop!
    One step above: "Two Tin Cans and a String!"
    Longtime Alaskan Low-Fi Guy - E=MC² ±3db
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  7. 02-06-2009, 06:32 PM #37
    JBLCanuck
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    One side on each cabinet finished veneering...worked fantastic!
    Boy...I wish I learned the white/yellow glue method of veneering years ago!
    It's no harder than Contact Cement...in fact it's easier because you can move the veneer around until it's exactly where you want it & then start ironing.
    Thanks to everyone who's helped with this project because I really am a veneer virgin
    The only thing I'd do different next time is I'd get a 10' sheet of veneer so I could do up one side, across the top & down the other side with one 19" strip so that the grain is matched perfectly. The supplier I used here only had 4'x8' sheets & so I needed 2. 1-10'er would have been better.
    Next set!
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  8. 02-06-2009, 07:03 PM #38
    Mr. Widget
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    Looking very nice!

    I don't think it is just beginner's luck.


    Widget
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  9. 02-06-2009, 10:06 PM #39
    Loud & Clear
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    Sweet!!!

    Two Time "Kidney Transplant Recipient"
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  10. 02-09-2009, 07:24 AM #40
    dino
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    looks really great
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  11. 02-09-2009, 11:30 AM #41
    JBLCanuck
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    Thanks guys!
    All veneering finished...honestly...that's the best information I've found so far on this forum.
    I've always found veneering intimidating. I've bought veneer that's not paper backed & fought with it...used contact cement where over time the edges have lifted & the edges...always glue showing at the seam.
    The Tite Bond glue works perfectly. The only thing that kind of sucks is you can really only do one side of each speaker per day. I found that if you're careful...you can trim the veneer the same day but experts recommend leaving it at least a few hours & preferably overnight before trimming or sanding edges. I guess on smaller speakers you could do 2 sides per day but the 4345's are so big & awkward it would be very tricky to turn them over by yourself without damaging the overhanging veneer.
    So anyway...bottom line here...even a beginner can easily veneer his own cabinets with very few tools & no experience. Just follow the methods layed out here by Saeman & other guys with lots of experience....it's really very simple.
    I followed Saeman's very helpful tips here....& definitely follow his advice & read the recommendations on Oakwood's Webpage.
    Great link here with very, very helpful info....
    http://www.audioheritage.org/vbullet...te+bond+veneer
    Thanks again everyone....I'll be staining today, all being well
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  12. 02-10-2009, 10:39 AM #42
    Robh3606
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    Great give us some more pictures!

    Rob
    "I could be arguing in my spare time"
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  13. 02-12-2009, 06:09 AM #43
    JBLRaiser
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    I hope you are recording this with........

    lots of pictures. Too many of gaps so far. Would like to see EVERY step.
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  14. 02-14-2009, 07:55 PM #44
    boputnam
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    Quote Originally Posted by JBLCanuck View Post
    Today might just be veneer day...wish me luck!
    Uh-oh...

    A few more weeks of this and we'll being going through all that electrical polarity / acoustic phasing stuff with you, too!!
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  15. 02-14-2009, 10:32 PM #45
    BMWCCA
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    Quote Originally Posted by boputnam View Post
    A few more weeks of this and we'll being going through all that electrical polarity / acoustic phasing stuff with you, too!!
    Probably with the same cast of miscreants, too!
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