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Read the Post in new Window Read the Post in Threaded view  Post #31: The plaster horns: how will they hold bolts? by Romy the Cat on 2007-08-08 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Jessie, I’m very ignorant in materialology but I have a “common sense” concern. I do not see that you imbedded into your plaster construction any tightening points from a stronger material. I mean: the holes in plaster – how strong you will be able t...

Read the Post in new Window Read the Post in Threaded view  Post #47: The cool plaster idea, the Xenons and Summarits…. by Romy the Cat on 2007-09-28 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Ah, your horn this way does not have own axis and the axis of the back plate become actually the axis of the horn? This way you get rid the ugliest element of co-axising – the integration of the axis of horn and the back plate. Very-very cool indeed!...

Read the Post in new Window Read the Post in Threaded view  Post #303: Surround by Bill on 2010-09-19 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
You could isolate the horn from the plaster with 1/2 inch white foam window insulation and cover over it between horn and plaster wth white silicone or putty window sealant. ...

Read the Post in new Window Read the Post in Threaded view  Post #33: Fixation anchors by jessie.dazzle on 2007-08-08 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Quotes from Romy in blue :I do not see that you imbedded into your plaster construction any tightening points from a stronger material. I mean: the holes in plaster – how strong you will be able to tight the bolts before the plaster will give up? Did...

Read the Post in new Window Read the Post in Threaded view  Post #31: The plaster horns: how will they hold bolts? by Romy the Cat on 2007-08-08 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Jessie, I’m very ignorant in materialology but I have a “common sense” concern. I do not see that you imbedded into your plaster construction any tightening points from a stronger material. I mean: the holes in plaster – how strong you will be able t...

Read the Post in new Window Read the Post in Threaded view  Post #20: Midbass horn construction by malinowski on 2007-10-01 
Browse the content of the threads in new Window  Thread: Phase plug for midbass in Horn-Loaded Speakers  23 Replies 
Thank you Ulf and Jessie, I can't wait to get this started. Jessie I am going to send this plaster spec to my supplier and see if I can find something close.. In the past I would use plaster for creating a wax form.. then put the wax form into a s...

Read the Post in new Window Read the Post in Threaded view  Post #58: 115 Hz made easy by jessie.dazzle on 2008-06-23 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
And now, going back to page 2 of this thread; here we pick up with some shots of the upper bass horn and the associated primitive "tooling"Mold without coreMold with core. Before core is put in place, mold is loaded with a thick coat o...

Read the Post in new Window Read the Post in Threaded view  Post #9: Stereo Lab by decoud on 2009-08-18 
Browse the content of the threads in new Window  Thread: MacondoLite in Horn-Loaded Speakers  18 Replies 
I should point out that my experience might not be representative because my horn is wrapped in 1 and 1/2 inch diameter manila rope and then doused in high density plaster, so it weights about 50kg or so. A simpler solution might be their "ultrafi" v...

Read the Post in new Window Read the Post in Threaded view  Post #217: Hard rear chamber/basket cover by jessie.dazzle on 2010-08-31 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
Here's how I'd make a hard rear cover/rear chamber.I describe the process in detail, as it is a good investment of my time; I expect to have a similar condition and requirement for my own mid-bass horns (intended for use with AK-151s).This approach c...

Read the Post in new Window Read the Post in Threaded view  Post #298: The sheetrock-horn interface. by Romy the Cat on 2010-09-18 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
OK, on Monday my carpenter will do all necessary work to fine align the horns, to tight and to solidify what need to be.  The framework with horn will be over and on Tuesday he will cover the things with sheetrock (drywall) and begin to apply the fin...

Read the Post in new Window Read the Post in Threaded view  Post #33: Mid-bass horn; thoughts on materials by jessie.dazzle on 2010-06-16 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
Romy wrote:"...The material itself – what to use. I am wide open from any type of wood to synthetic panels (like cement panels). Perhaps it might be a combination of organic and synthetic layers..."I realize you won't be doing the work yourself, but ...

Read the Post in new Window Read the Post in Threaded view  Post #57: Transition Zone by Paul S on 2010-06-26 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
Thinking of the transition from round to triangular, I go back to Jessie's fibrated "plaster" for the round profile section. To make the transition, make the narrow end of the triangle "too long", and somewhat larger inside than need be, to serve as ...

Read the Post in new Window Read the Post in Threaded view  Post #19: Make it hard for yourself! by jessie.dazzle on 2007-09-30 
Browse the content of the threads in new Window  Thread: Phase plug for midbass in Horn-Loaded Speakers  23 Replies 
Hello Malinowski, Sounds like you may already have the necessary experience in working with plaster, but in case you're not used to making anything this large: For the final horns, especially if they are large, use hard modeling plaster. My up...

Read the Post in new Window Read the Post in Threaded view  Post #3: Finish & texture by jessie.dazzle on 2008-01-26 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
Romy wrote : "...Alternately you might use hairy wood of rough plaster surface as Jessie might do with his plaster horns..." I'm currently using Hammerite textured paint to seal the plaster. This stuff (originally designed to prevent rust) has...

Read the Post in new Window Read the Post in Threaded view  Post #4: The John Hasquin's schooling. by Romy the Cat on 2008-01-26 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
It should be read: "...Alternately you might use hairy wood OR rough plaster surface as Jessie might do with his plaster horns..." Anyhow if you use textured paint then there is an easy was to increase size. When you spray the paint do not spay f...

Read the Post in new Window Read the Post in Threaded view  Post #2: Phenomenally simple, effective and wonderful! by Romy the Cat on 2007-01-26 
Browse the content of the threads in new Window  Thread: Make Your Own Horns in Horn-Loaded Speakers  2 Replies 
Jessie, absolutely wonderful.  Dima used the very same techniques to build his own MF horn. BTW, I made in past a prototype horn with similar idea that ended up disasters because of my stupid “willingness”. While I was applying plaster I spared ...

Read the Post in new Window Read the Post in Threaded view  Post #21: "One" more thing... by jessie.dazzle on 2007-10-02 
Browse the content of the threads in new Window  Thread: Phase plug for midbass in Horn-Loaded Speakers  23 Replies 
Reading how you plan to go about making this horn, I offer the following (this first one you probably aready know):Make the outside of the mold in quarters or thirds and hold it together using fabric straps (not bolted flanges)... If you make it...

Read the Post in new Window Read the Post in Threaded view  Post #29: Construction continued & Images by jessie.dazzle on 2007-08-08 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Paul S wrote : "...Jessie, you know I am not a horn guy. I played with horns for 5 years, and I have heard plenty of them, and so far none have worked for me, musically.  But I have remained mindful of horns' potential, and I keep coming back ...

Read the Post in new Window Read the Post in Threaded view  Post #25: Ah its nice here in Brazil... by jessie.dazzle on 2007-03-05 
Browse the content of the threads in new Window  Thread: The Ridiculous Japa-Brazilian horn. in Horn-Loaded Speakers  54 Replies 
Paul,Well it would be silly for me to insist that I'm absolutely correct here, as I too am only basing my analysis only on what I see, and what experience I have been able to amass (some profession-related, a little in...

Read the Post in new Window Read the Post in Threaded view  Post #36: Pudding by decoud on 2014-06-01 
Browse the content of the threads in new Window  Thread: A DSET is better then an expensive SET in Audio For Dummies ™  41 Replies 
I know you do not want to do it, but it is a shame not to do it: actually manufacture a version of the Macondo with an integrated dset, cut down enough (say three channels) to make it feasible while still demonstrating the advantages of the dset idea...

Read the Post in new Window Read the Post in Threaded view  Post #304: Door trim by Bill on 2010-09-19 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
Another optrionwould be to plaster within 1/2 or 1/4 inch to horn and then surround horn openig with door framing wood not quie touchig the drywall. Would also add a little bit to the look of the horns....

Read the Post in new Window Read the Post in Threaded view  Post #7: Site/Sound Library by Paul S on 2015-12-31 
Browse the content of the threads in new Window  Thread: Practicality of paper mache horns. in Horn-Loaded Speakers  9 Replies 
Gargoyle, YMMV, but I associate LF propagation/amplification with mass; there has to be some way to really "anchor" at least the LF driver. I was thinking MF for the felt and/or paper horns, although I guess you could begin with a chicken wire form ...

Read the Post in new Window Read the Post in Threaded view  Post #30: 160hz le´cleach... by chaos on 2008-07-13 
Browse the content of the threads in new Window  Thread: 60hz, GPA-515-8ghp horn... in Horn-Loaded Speakers  32 Replies 
hi wojtek!i know, with the 160hz i may run into problems. i thought about making tractrix horns or maybe go for 400x-over with the 204´s from martin. his price is really good! i would cover the horns with something, maybe sand, maybe plaster.lat...

Read the Post in new Window Read the Post in Threaded view  Post #2: To look at the problem from different angle by Romy the Cat on 2008-01-26 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
op.9, to put your comment I perspective it is necessary to know what surface you had on your Lecleach horns before. If you search the site (use world textured or structured) then you would know that I am a vocal opponent of smooth surfaces on horns....

Read the Post in new Window Read the Post in Threaded view  Post #99: Did anyone say “blowing the gaskets”? by Romy the Cat on 2009-01-31 
Browse the content of the threads in new Window  Thread: Macondo’s MiniMe or about Pilot Acoustic Systems in Audio Discussions  213 Replies 
I did put some gasketing under the driver, not thought but to so what it will do. I used the substance that I described above. It is Home Depot 3207680110 or the model #DS110 Pug duct seal by GB Electrical. The best thing about it that it is that pla...

Read the Post in new Window Read the Post in Threaded view  Post #8: It is not a lost case by Wojtek on 2007-03-03 
Browse the content of the threads in new Window  Thread: The Ridiculous Japa-Brazilian horn. in Horn-Loaded Speakers  54 Replies 
I would turn upside-down mid bass horns ,mount drivers in Heavy box and cover plastic (ABS ?) horns with very thick layer of stynthetic plaster (the one LeCleach is using to "cast " his horns .So now he'd have horizontal J shape and it would be fairl...

Read the Post in new Window Read the Post in Threaded view  Post #4: Defying gravity by Paul S on 2007-08-04 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Pretty freaking cool, Jessie.  So, where can you put this monster where you can still get far enough away to listen to it?!?If you pursue this, you might tack weld or screw on expanded metal mesh between the ribs of that behemoth so you&nbs...

Read the Post in new Window Read the Post in Threaded view  Post #46: Centering the S2 (images) by jessie.dazzle on 2007-09-28 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Romy quotes in blue (pulled from the "Adding one more channel to the Macondos" thread) "1) Make sure that your cone is properly center in a gap. It is very important as misaligned cone will do compression at bottom end" I feel confident that I am ab...

Read the Post in new Window Read the Post in Threaded view  Post #97: The lightweight division by Paul S on 2008-07-24 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
I just remembered that I sometimes use a cementatious material that has added to it a fair amount of foam-ish beads and acrylic.  The stuff sets up like cement but is MUCH lighter than cement or plaster, perhaps 2/3 lighter.  I mention this...

Read the Post in new Window Read the Post in Threaded view  Post #148: I didn't have to seal by Wojtek on 2010-01-29 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
because floor josts support and extend the walls (they are solid  2"x6")so just screwed the board tightly to them. Because I needed the boards only within 10' so I have 3 rows of 5' +5' with the seam in the middle. I cut the second layer of bards so ...
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