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Thread: Fostex horn - repair, refurb, repurpose!

  1. #16
    Heather [Senorita member] hjames's Avatar
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    Just for comparison, this is the other horn. It was not dropped and was not "broken."
    You can see on the first picture where it looks like 2 different pieces (difference in color and grain)
    were glued together at the factory.
    The black paint is from a nylon block that was on the bottom of the horns.
    (I managed to get that black paint off with gentle use of the chisel and a sanding block.)

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

  2. #17
    Heather [Senorita member] hjames's Avatar
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    Got a few gashes on the front lip, but they are basically healed and ready to use!

    Ordered a can of Teak oil from Amazon yesterday and I'll try and get the faded places rejuvenated with that.
    Home Depot did not have any ...
    I also need to get a pair of horn drivers to see how they sound ...

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    And I confirmed, the Fostex adapters will fit either Altec or JBL 1 inch driver mounting patterns. Very cool!

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    So, maybe I should plan to build some 2 ways with those Altec Model 15 cabinets I still have,
    and the JBL 2214H drivers I still have ... all I need is a pair of 1 inch horn drivers and build a crossover.
    I could sure do worse (Note: I no longer own the Altec horn drivers shown)

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

  3. #18
    Senior Member macaroonie's Avatar
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    Result , looks like you got the wood gods on side.

    Show me some close ups of the front lip damage , there are some neat tricks for this kind of thing.

    You will need some teak offcuts,

  4. #19
    Heather [Senorita member] hjames's Avatar
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    Quote Originally Posted by macaroonie View Post
    Result , looks like you got the wood gods on side.

    Show me some close ups of the front lip damage , there are some neat tricks for this kind of thing.

    You will need some teak offcuts,
    Okay - top view, front view, bottom view of the bad Lip that has the outer edge knocked off it.

    Off to church soon - if you need anything closer or a different angle, let me know!

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

  5. #20
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    Heather,

    Very nice, another interesting project. I've got a minty pair of 2425h drivers sitting idle I'd like to see go to good use.

    There's nothing special in Teak oil. It's something marketed primarily to the marine marketplace because of the prevalent use of Teak on boats/yachts. Use whatever Tung oil products/blends you like.

  6. #21
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    I've also got a few scrap pieces of Teak in the basement you're welcome to for making a "Dutchman" repair on that edge.

  7. #22
    Senior Member macaroonie's Avatar
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    Good stuff. If you can get some offcuts from Rusty that would be great.

    For the wee ding try this , take a scrap of lighter coloured wood and sand it so that you have a nice pile of dust. mask off other than the general area you are working on.
    Multi stage process here , make a little pile of your dust in the ding and tamp it down. Wick some thin CA ( superglue ) into the dust and leave to harden. Do this as many times as it takes to build it up. Sand back to conform to the correct shape.
    It will appear a little darker due to the wetting of the CA , thats why I said get some lighter looking dust,

    For your front lip you will need to plane that nice and flat. Too big for the CA treatment If you are lucky Rusty will have a piece where the grain has a similar pattern to your damaged lip. Basically make mating surfaces , dont try to shape that patch exactly , near is good , glue up and then conform to shape.

    Without a plane a nice flat sanding block will get you there. Stick 60-80 grit in to a piece of MDF. Patience will get you there.

  8. #23
    Heather [Senorita member] hjames's Avatar
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    Very cool Rusty and Mac! Thanks for the assists.
    I know I roared through the work yesterday - but I'm alternating between projects,
    so it may take me a while to get back to this project!
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  9. #24
    Heather [Senorita member] hjames's Avatar
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    And I just won the rest of the seller's kit on eBay - should have them by the end of the month ...

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    And what the stacks looked like when new ...
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    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  10. #25
    Senior Member Lee in Montreal's Avatar
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    Oh that's nice. I can see a complete Fostex clone w/ 15" woofer in the future. ;-)

  11. #26
    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by hjames View Post
    And I just won the rest of the seller's kit on eBay - should have them by the end of the month ...
    Awesome! Keep us posted... very exciting.


    Widget

  12. #27
    Senior Member macaroonie's Avatar
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    Footnote , on the front lip I would be wary of planing unless you have a very sharp plane and can make minimal cuts. You have rising grain at both ends and there will be a high chance of catching or tearing.
    Prob best to stick to the sanding method. If you place the lip just protruding over a straight edge of ply or MDF ( clamp it down ) and use a longish block of nice square 2x2 as your sanding tool. This will stay nice and square and if you take nice long strokes you should get a good result.

    https://www.youtube.com/watch?v=XycqnPGcbvM

    From 3.0 on. You are using a dressed 2x2 with abrasive but the principle is the same

  13. #28
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    Quote Originally Posted by hjames View Post
    And I just won the rest of the seller's kit on eBay - should have them by the end of the month ...

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    And what the stacks looked like when new ...

    Very exciting stuff Heather!


  14. #29
    Senior Member bldozier's Avatar
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    i had bid against you, nice win heather. i swore my auto bid was going to win.
    apparently NOT. ultimately i was allowed to bid.
    they look ok cleant up as well,
    an im sure the sound will equal their looks.

  15. #30
    Heather [Senorita member] hjames's Avatar
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    Quote Originally Posted by bldozier View Post
    i had bid against you, nice win heather. i swore my auto bid was going to win.
    apparently NOT. ultimately i was allowed to bid.
    they look ok cleant up as well,
    an im sure the sound will equal their looks.
    Ah, I have not had the best luck with Sniping software - I was logged in at 6:55 PM or whenever that one scheduled to end.
    I had figured the maximum I was willing to pay, added 10% to that, and bid directly at 0:30 seconds before it ended.
    Then once I won the horns and had done the initial repairs on them by Saturday evening, it sorta made sense to buy the rest of the stack on Sunday for another $xxx (shipped).
    Pretty much wiped out my "play" funds - hope I have a Tax refund coming this year!
    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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