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  1. #1
    Senior Member saeman's Avatar
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    4355 Monitor Plans

    For those interested in building the 4355 Monitor I have cleaned up most of my drawings. I have several more to go and will try to add them as I get finished.

    Baffle layout in sililar to that of the 4350/4350B but there are slight differences in the location of the component cutouts. The big difference is of course the single port on each side of the 2235H's. Diameter is 5 3/8" I.D. and finding the correct size tube is proving to be a challenge. JBL used rolled cardboard type material for the duct tube. My detail showing the dogleg shaped tube is only approximate. I will post more accurate drawings when I actually find the tube material and build the duct.

    The internal cabinet dimensions are identical to that of the 4350/B as is the gross internal volume. The Mid-Base box also is the same as the 4350/B. Only differences in internal bracing changes the net internal volume.

    All of these details came from the only pair I have had an opportunity to open up and inspect. There may be minor differences between models, but I suspect due to the short production run that they are all the same.

    Rick
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  2. #2
    Senior Member saeman's Avatar
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    4355 Monitor Plans

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  3. #3
    Senior Member saeman's Avatar
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    4355 Monitor Plans

    A few more pages
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    Senior Member saeman's Avatar
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    4355 Monitor Plans

    I recently located a source for the odd ball sized tube needed to build the dog let shaped duct tubes on the 4355. Thanks Woody for your help. I have the tubes ordered and will have them soon. I can now complete my 4355 project with the assurance that the tubes are exact.

    I ordered extras and will offer the tubes, cut and assembled in the proper fashion, and ready to install in the cabinets, to any of you guys who are comtemplating building the 4355 to factory specs. Four tubes per pair, price to be determined after the material arrives and I determine fab time to get them assembled.

    PM if interested.

  5. #5
    Senior Member saeman's Avatar
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    4355 Duct Tubes

    Here's a couple of pics that show the duct port tubes mounted and aligned to the proper angle. Warning - we have 3 cats and they're always poking their heads into my ports when the grilles are off. No problem with 3" or 4" ports but these 5 3/8" ports are big enough that the slippery little suckers could crawl into the cabinets. A quick 100 db burst would likely force a quick exit but I worry about them leaving something inside my cabinets that won't smell too good. I'll likely not leave the grilles off when I'm not around.

    If anyone needs help duplicating these tubes let me know. I have extra tube and the info to cut, assemble and mount them.
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  6. #6
    Senior Member saeman's Avatar
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    4355 Monitor Plans

    Here's a few more pics of my 4355 project. The cabinets are essentially complete. My holdup was solved when I received the correct tube for the ports. Cross overs are being built, woofers are being reconed along with new diaphragms for the 2405's. When everything arrives I will get them fired up. I expect the new charge coupled x-overs to take these to a level beyond the 30 year old factory 3155's.

    Cabinets are built from the plans I posted and are EXACT duplicates of those produced by JBL. I doubt anyone could tell the difference side by side, unless of course you noticed that they were new and everyone knows that new ones don't exist. Call me anal maybe, but I struggle always for a certain level of perfection - makes the effort worth while.

    Veneer is walnut and stained/oiled to a patina very close to those finished by JBL. A ten foot sheet allows a full side/top/side grain wrap which is a nice added touch that doesn't cost but a few more cents per square foot. I'll mount the grilles on the second cabinet, wrap them up and sit them aside til all of the parts arrive.

    More later - Rick
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    Senior Member saeman's Avatar
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    4355 Monitor Plans

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  9. #9
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    Rick, You're killing me. Beautiful cabs, Fresh - Crisp - New

  10. #10
    Heather [Senorita member] hjames's Avatar
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    Kinda thinking you probably shouldn't expect a quick response -
    a. Its a really old thread
    b. Rick hasn't been on in the last 2 months

    Last Activity: 02-07-2014 09:57
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  11. #11
    Administrator Robh3606's Avatar
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    The plans are available here to download and print

    http://www.audioheritage.org/vbullet...nclosure-Plans

    Rob
    "I could be arguing in my spare time"

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    Senior Member ivica's Avatar
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    Quote Originally Posted by Robh3606 View Post
    The plans are available here to download and print

    http://www.audioheritage.org/vbullet...nclosure-Plans

    Rob
    Hi Robh3606,

    It seems that most of the data are there EXCEPT the "ducts dimensions", so the box tuning is is not defined.

    regards
    ivica

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    The duct dimensions are on the site, just need to dig deeper.

    Allan.

  14. #14
    Senior Member ivica's Avatar
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    Quote Originally Posted by Allanvh5150 View Post
    The duct dimensions are on the site, just need to dig deeper.

    Allan.
    Hi Allanvh5150,

    It would more HELPFUL if You can point to the post where 4355 the duct length is defined.

    ivica

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    Since I can't find it in those beautiful drawings: Side panels, top and bottom are 1" thick, correct?

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