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Thread: 4320 Build thread - Tinpan

  1. #1
    Member tinpan's Avatar
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    4320 Build thread - Tinpan

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    Now you are probably looking at this crummy picture of a pair of 2215 drivers, but, this build is actually a lot farther along.

    List of things I have located and am waiting for:
    1 - pair 4320 cabinets - pretty sure I have a pair coming, just need to get my hot little hands in them
    2- 4320 grills
    2 - 2420 one inch horn drivers
    2- 3110 2 way crossovers
    1- 2420 horn I think this is part number 2307 that i need or maybe it's 2312

    I think the only major component I'll need here is the short horn for the 2420 driver. I want to look at the part number on the one I'm picking up tomorrow so I can confirm what I need. I've seen a few part numbers and they look to be different horns

    Anyway, I should have all the drivers tomorrow. After that I'll need to figure out what kind of hook up wire I'll need and probably the screws for installing the drivers. I've seen the bass drivers installed with screws with clamps and screws without clamps so I'll have a few questions on that.

    I also promise to post better photos as I proceed. I actually do have a camera and I'll quit using my iPhone. Anyway, that's it for now

  2. #2
    Heather [Senorita member] hjames's Avatar
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    I believe you need another 2307 horn for the 4320 build ...
    (The 2307 horn is a little over 7" long and is made for the 1200Hz crossover point)
    (the 2312 horn is close to 12" long and can do the lower 900Hz crossover point of the L300/4333 systems)

    When I got my 4320s in Philly, the cabinets had the 2307 (short horns) and the 2215 drivers.
    I don't think the long 2312 horns will fit 4502WX cabinets without cabinet modification.

    I'd say set them up as 2 ways first so you can get a sense of what those can do
    before you decide to go 3 way.

    Good luck.
    And have fun!

    Quote Originally Posted by tinpan View Post

    1- 2420 horn I think this is part number 2307 that i need or maybe it's 2312

    I think the only major component I'll need here is the short horn for the 2420 driver. I want to look at the part number on the one I'm picking up tomorrow so I can confirm what I need. I've seen a few part numbers and they look to be different horns

    Anyway, I should have all the drivers tomorrow. After that I'll need to figure out what kind of hook up wire I'll need and probably the screws for installing the drivers. I've seen the bass drivers installed with screws with clamps and screws without clamps so I'll have a few questions on that.

    I also promise to post better photos as I proceed. I actually do have a camera and I'll quit using my iPhone. Anyway, that's it for now
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  3. #3
    Senior Member grumpy's Avatar
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    Now I'll have to scratch my thinker... I thought the first 4333 was in the same cabinet
    (4502) as the 4320 (vs the 4333A or B). Perhaps a different access panel/carrier was
    required for the 2420/LE85 vs when installed as a two-way with the shorter horn
    (back to the garage)

  4. #4
    Senior Member grumpy's Avatar
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    Sorry... cab I have is 4503, so perhaps there are cabinet
    differences such as the support for the mid. Looks like there
    is 4" from the 2312 rear flange to the inside wall of the
    mid driver access hole (so there's room for 2420 on a 2312
    if one were determined):

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    seems like the 2312 in the pic might have been Heather's
    at one point (unless that was the 2311 pair)

  5. #5
    Heather [Senorita member] hjames's Avatar
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    Just adding links to the original factory brochure as a point of reference for your project:


    http://www.jblpro.com/pub/obsolete/4320.pdf


    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  6. #6
    Member tinpan's Avatar
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    Ok Great, now I know what I am looking for. I plan on keeping these 2 way. The L200's will be my experiment

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    This looks like the one I am looking for. Now to keep a watchful eye out for one.

  7. #7
    Member tinpan's Avatar
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    Had a great day yesterday. I got to have lunch with one of my favorite forum members and pick up a few pieces

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    I picked up a pair of 2420 drivers and a 2307 horn that I needed

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    See how nice they look

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    Serial numbers 8346 and 8342 tell me these probably can from the same cabinets

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    Need find one more 2307 horn

    So as far as the horn drivers I am pretty well set

  8. #8
    Member tinpan's Avatar
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    I also got a chance to unpack my bass drivers. They are serial #'s 2180 and 1560

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    This one looks to be in pretty good shape

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    Looks like a screw driver went through this one at one point. I'll have to see if that's fixable or if I should replace the driver.

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    I also got the network.

    I'm pretty sure all of these drivers and network were operational in the same cabinets at one point.

    Anyway, gotta run. More later

  9. #9
    Member tinpan's Avatar
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    Well...heck...let's try this again.

    I had a blast yesterday playing around with my 4320 drivers and testing them. No pics but I did make a couple short videos.


    Here's one of the 2215 drivers and the 2420 with horn and 3110 network being tested. All I have to say is whoaaa...this is going to be nice. I really like the combination of compression horns and 15 inch bass drivers. This has some nice potential.


    Course I had to see what it sounded like in a cabinet. Since I have this L200 cabinet why not take it for a spin.


    I am really digging the sound, one of the benefits with a single speaker system is you get great imaging, lol. I'm using a Grampion mono tube amp from the early 1950's. It uses 6L6 tubes and I'm streaming flac files from my Sonos. I use this set up to play with speakers I drag home like the Karlson and mahogany corner horn you see in the background.

    I'll test the other woofer today, but it looks like I have 2 horn drivers working, 2 networks working and at least 1 bass driver working. I should get the cabinets this week so I am getting nearer with this system. The other 2215 driver has a hole in it and it looks like someone glued it together, we'll have to play with it and see how it sounds and go from there.

    I still need 1 2407 horn. I found a pair of LE85's with H92 horns and lenses for sale for $600. I could get those and use one of the horns until a 2307 shows up,but I think that's pretty pricey. I don't think I'll be using LE85 drivers on the L200 build, but I could use the lenses for the 4320. Although, I guess by the time you deduct the cost of the lenses, $470 isn't too bad for a pair of LE85 horns and drivers, they are pretty nice.

    I thought the 3110 network was interesting. I'm used to Lpads on Altec systems so I wasn't expecting these to click into 3 positions. I have another buddy encouraging me to learn him to build crossovers, maybe it's time to maybe look at doing that.

    Anyway, gotta run..

  10. #10
    Member tinpan's Avatar
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    I didn't have as much time to play around in my garage today but I was able to test the other 2215 driver a little more


    It actually didn't sound too bad


    You can see the hole in the cone. It looks like someone applied a little glue to it. If you look closely you can see holes in the surround. It's like that on both 2215's a couple small holes


    Boy it sure does sound nice.

    So I guess at a minimum I'll need to have someone install new surrounds. I guess I'll keep my eyes open for a single 2215 or should I look at re-coning the one driver or both. Could use some advice here.

  11. #11
    Senior Member BMWCCA's Avatar
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    Headed your way!

    This ought to help pull the whole project together:

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    ". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."—Greg Timbers

  12. #12
    Member tinpan's Avatar
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    I am really glad you found those, you are right, I do want them.

  13. #13
    Heather [Senorita member] hjames's Avatar
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    Quote Originally Posted by BMWCCA View Post
    This ought to help pull the whole project together:

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    Wow - that is a very cool part of the project!
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  14. #14
    Member tinpan's Avatar
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    Notice anything different?

  15. #15
    Heather [Senorita member] hjames's Avatar
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    Quote Originally Posted by tinpan View Post
    Notice anything different?
    Wowser! Phil to the rescue!
    You have even more toys to play with now ...

    You've had Altecs and those other speakers in the past
    Tell us what you think about these JBL pieces ...!!
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

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