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  1. Cone impedance questio

    DIY Speakers
    This is a repair question. I own pair of Epos 2.5 way, 4 ohm floorstanders and recently destroyed the 2 woofers on one of them. The story would be too long so I'll spare you. Since no replacement parts are available (per the US Distributor) I had the bright idea of acquiring a used pair of the...
  2. UM18-22, Help understanding WinISD SPL, Signal EQ and cone excursion

    DIY Subwoofers - General Discussion
    I'd never used WinISD, but modeled a Dayton Audio 18" UM18-22 sub in a sealed 4 cu ft enclosure. I also don't have the sub or amp yet. I think I put the parameters in correctly, and seem to get a -3dB point close to what parts express shows. However, I don't fully understand the point of the...
  3. Cone excursion, playing with volume, etc

    DIY Subwoofers - General Discussion
    Hello everybody, I'm considering building two sub-woofers in a cylinder shape like the SVS PC13-Ultra and more or less of the same size. The problem is that I don't have any experience as so far I only built a pair of speakers but those were based on an existing project already and anyway it's...
  4. JBL 2226H cone repair?

    DIY Speakers
    Hi all. I just got some 2226H's in the mail and it appears one of them got damaged during shipping. Is there any way to repair this without buying a recone kit ($70-$100)? I'm not worried so much about the crack since I can fix that with some watered down glue, but I am worried about the chafing...
  5. Tweeter cone is dented??

    DIY Speakers
    Hi all. I built three of these Zaph Audio MTM kits in an in-wall build for my L C and R channels for my home theater: http://www.madisoundspeakerstore.com/mtm-speaker-kits/zaph|audio-za5.3c-center-channel-single/ I took the screen down and looked at the speakers and noticed the dome on the...
  6. Cone Rattle?

    DIY Subwoofers - General Discussion
    Hey guys, I am in need of a little guidance. I am getting ready to begin my subwoofer build and finally have all the electronic components so I decided to test everything out. I have the speaker in free air with gain turned almost all the way down on the amp just playing some music from a laptop...
  7. Missile nose cone refurb.

    Sealed Subwoofer Build Projects
    Hi. Thought I might share this with you guys as I go along with a bit of a tidy up and improvement of my little project. Some of you guys may have seen the initial build over on AVForums, figured Id post it over here this time around. Its a kevlar nose cone with an aluminium ring at the base...
  8. Re-coning multiple subs; multiple problems; single piece cone Eclipse 12...

    DIY Subwoofers - General Discussion
    Hello, I have to recone/repair an Eclipse 12" sub with a mutilated coil, and an Alpine Type S 10" DVC with a blown tinsel lead. Both subs have a single piece cone... how to I keep the coil aligned, especially when the spider was cut unevenly (both)? I'll try to epoxy the rest of the spider...
  9. target curve vs cone excursion

    Electronic Processing/Equalization Devices
    When I'm adding filters with my BFD to acheive the target curve, be it a flat response or house curve, do I need to concern myself with the affect those filters will have on my cone excursion? With my current PB13's I've filtered away to acheive my curve with no thought toward cone excursion...
  10. M-X cone excursion vs. surround excursion

    DIY Subwoofers - General Discussion
    Hi Guys, I know the excursion of the cone for a M-X 18" driver, but if you were to measure the excursion of the surround what would it be? I mean from the resting position of the surround, how much further from that point will the surround go with the full excursion of the driver? I hope that...
  11. FS: 15" TC2000 w/ cone partially seperated from surround

    Classifieds - Speakers and Subwoofers
    Up for sale is a TC2000 with a cone partially seperated from the surround. This was covered under warranty, however I believe TC Sounds liquidated all their assets or something like that, but bottom line was they didn't exist to honor the warranty and I was left with a sub that couldn't play...
  12. Viewing cone with BW, Scorpion and C&S DIY paint mixtures

    DIY Screens
    I have a stupid question, I just to want to double check before I prove wrong my bro-in-law. :boxer: Since he owns a pull down fixed (high gain a dark gray) screen. I gave him a piece of cardboard painted with BW (CIL/AAAF 4:1, as we know Mech/Harpmaker proved it is not the best combo), to...
  13. WinISD - Sonosub Cone Excursion Graph

    DIY Subwoofers - General Discussion
    Can WinISD calculate the cone excursion for a ported sonosub enclosure? I have attempted do calculate this, but the excursion data seemed awfully low (i.e. .05 inches).
  14. powder coating a cone

    DIY Subwoofers - General Discussion
    I knew very little about powder coating until today. At work I got to go back and work in the steel shop, and I got to do some painting from start to finish, washing the metal in a chemical bath, hanging on a steel rack with steel hooks, pushing the cart into a furnace room at over 350 degrees F...
  15. Wooden cone drive units

    DIY Speakers
    Hi folks, I'm not sure if anybody is aware of a Japanese manufacturer called PARC audio, but if not these units look pretty nice - I have just ordered a pair of the 8cm (DCU-F101W) units to test out (http://dream-creation.jp/product.php?product_no=5). :bigsmile: The cost works out at around £30...
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