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Restoring/cleaning up some old-school Fane Studio Colossus 15B's!

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  • Restoring/cleaning up some old-school Fane Studio Colossus 15B's!

    These things were bought just for nostalgia's sake. I remember my old man buying these from the local guitar/pro-audio shop for $65ea in the early 90s. He then copied the dimensions of some then-produced Cerwin-Vega folded horn, and as a 10/11yo kid, I was blown away. Worked great to my ears! 400W RMS! Holy smokes! They're monsters! (I thought back then, LOL).

    Fast forward today, I still use one that I had found on Ebay a few years ago, only if I really wanna pour on extra bass that my 2-ch might not be able to fill in at loud enough levels.
    You can see it corner-loaded this pic:

    So I picked up 3 on Ebay, seemed to be early models and were a bit rough

    Here's two of them after cleaning them up and applying "the wet look" to the front side.

    In these next shots, you should be able to see the very thin layer of silicone I brushed onto the spider, as they were pretty dang soft. Thankfully they weren't sagging all that much, but I still think it'll breathe a new breath of life into them.

    It tightened them up just a little bit, which is pretty much what I was looking for. The Vas figures were a bit high when I got them, in the 6-7 ft³ range, Fs low 30's, Qts, low 0.30's. Yes, I already know how this will shift all the parameters, and that's exactly what I'm looking for.

    Thanks for looking, don't forget to rate, comment, and subcr......oh wait, wrong site! lol j/k :D

  • #2
    Brushed silicone on the spider - I never heard of that technique. Sounds interesting.

    ​How did you achieve the "wet look"? I'm thinking of doing the same to my PA310 (to waterproof it a little), but rubbing silicone over the surface of the cone.
    Brian Steele


    • #3
      As far as the silicone, I got to thinking: lots of manufacturer's (RCF, 18sound, B&C, Precision Devices, Fane, etc) in the pro-audio field are turning to silicone-based damper systems in place of the traditional single- or dual-spider. What most seem to be doing is sandwiching two spiders with a layer of silicone between them. Silicone has a great memory-retention once it's dried, kinda like rubber does, but not as heavy. I believe I had read it has more actual damping as well.

      18 Sound PDF - Double and Triple Silicone Spiders

      "The wet Look" is the coating that PE sells, Part # 340-513. Works great and has an amazing shelf life. My 4oz bottle sat outside on a shelf for at least 2.5 years including grueling Texas summers (which is basically 3 seasons out of the year. It was in the shade but still, I left it outside, not thinking I would ever need it again. So I go and grab it thinking it will be entirely hardened/dried out. Literally nothing dried out. Shocked. Completely liquid, nothing separated within it at all, nothing settled or anything! Didn't even have to shake it up. Great product. Highly recommend it over applying silicone on the cone. Lots of users say that it "seems" to slightly stiffen up the cone once it's dried, and maybe it's placebo, but I think they are on to something. It seems to stiffen it up just every so slightly. I'm going to apply it to the backside of these three Fane Colossus 15s to get a better feel for that aspect of it.
      Last edited by guitar maestro; 01-23-2018, 06:00 PM.