Doug's dual Gjallarhorn build - Page 4 - AVS Forum
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post #91 of 205 Old 11-22-2013, 09:44 PM
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HA!

My pleasure man. If you have any trouble with the vid card install/setup - just shoot me a pm and I'll swing back by.

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post #92 of 205 Old 11-22-2013, 10:00 PM
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The server room scene from Pulse knocked the snot out of my nose. I thought that was pretty good!

Perfect! That scene was made for the Ghorns!
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post #93 of 205 Old 11-25-2013, 08:33 AM
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Could gjallarhorn's be built with MDF? Or does it need to be birch void free plywood?

Does anyone know if Erik is planning to build a flatpak for gjallarhorns?

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post #94 of 205 Old 11-25-2013, 08:55 AM
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MDF would be extremely heavy and from what I understand the ply is greater in strength to withstand the extreme pressure the horn generates. Flat pack would indeed be awesome.
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post #95 of 205 Old 11-25-2013, 09:02 AM
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I would guess that there is <1% chance that there would ever be a flatpack.

There is simply too much wood involved. The wood alone in this build weighs more than 200lbs. (and that is with plywood, add significantly more lbs for MDF which I would not recommend using anyway)
In addition, there are only a handful of people building them. It would not be worth the machine time to make a kit.
Plus MDF is too fragile in something this heavy.

If you can't get it done, it would be better to have your local wood shop/cabinet shop build them for you.

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post #96 of 205 Old 11-25-2013, 09:40 AM - Thread Starter
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You would only be saving around $225 for two going with mdf and it would be about 60# more each. Neither is that big of a deal in the end. The problem with mdf in these are the reasons listed in the above posts, which are pretty important reasons, but also that mdf would not take the dings and bumps as well as the bb when they get moved around. You have seen my collection of giant horns, trust me, you don't want a giant horn made from mdf. Also, there is a lot of cutting. That much mdf dust could give a small city mesothelioma!
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post #97 of 205 Old 11-25-2013, 10:10 AM
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Quote:
Originally Posted by jpmst3 View Post

I would guess that there is <1% chance that there would ever be a flatpack.

There is simply too much wood involved. The wood alone in this build weighs more than 200lbs. (and that is with plywood, add significantly more lbs for MDF which I would not recommend using anyway)
In addition, there are only a handful of people building them. It would not be worth the machine time to make a kit.
Plus MDF is too fragile in something this heavy.

If you can't get it done, it would be better to have your local wood shop/cabinet shop build them for you.[/quote


Where can one find a set of plans ?
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post #98 of 205 Old 11-25-2013, 10:13 AM
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I am sure Ricci would be willing to send you the plans if you contact him directly. Some of us have them but I would not want to share them without his permission.

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post #99 of 205 Old 11-25-2013, 10:20 AM
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You would only be saving around $225 for two going with mdf and it would be about 60# more each. Neither is that big of a deal in the end. The problem with mdf in these are the reasons listed in the above posts, which are pretty important reasons, but also that mdf would not take the dings and bumps as well as the bb when they get moved around. You have seen my collection of giant horns, trust me, you don't want a giant horn made from mdf. Also, there is a lot of cutting. That much mdf dust could give a small city mesothelioma!

Agreed. These are so heavy that their own weight could crush a corner or something if they were made out of MDF. I'd say just the empty cabinet would weigh somewhere around 250lb's when made out of BB, possibly more.
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post #100 of 205 Old 12-22-2013, 07:38 PM - Thread Starter
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I have the first couple of coats of Kilz on, now I have some sanding on the horn mouth, and a couple of coats of finish. I'm not a fan of MH Patch at all. I chipped most of it off and repatched with Bondo. MUCH stronger and doesn't chip.

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post #101 of 205 Old 12-22-2013, 07:44 PM
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Awesome twins you have there!

I am quite sure you will be a happy camper!

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post #102 of 205 Old 12-22-2013, 07:45 PM
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Woah! Dual Ghorns, yeah!

Almost done. smile.gif

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post #103 of 205 Old 01-01-2014, 11:08 PM - Thread Starter
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Gasket tape vexes me, so I came up with this so I don't have to avoid running a bolt through the middle of it and finding it all wadded up next time I remove a driver or hatch.





These photos don't look much different than the last ones, but the difference is huge. They have the final coat of paint, wiring soldered in, drivers cleaned and installed, and are going to their final resting place in to the ceiling tomorrow. You will notice some bolts on the inside of the horn mouth: 1/2" bolts are replacing those, so I guess they aren't COMPLETELY finished. Don't judge me.







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post #104 of 205 Old 01-02-2014, 06:04 AM
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Nice! cool.gif

You are going to be in another dimension with two of those bad boys!

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post #105 of 205 Old 01-03-2014, 02:27 PM - Thread Starter
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post #106 of 205 Old 01-03-2014, 02:29 PM
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Yowsers!

That is no small chore getting two of those monsters into that space. eek.gif

Best of luck, don't get hurt.

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post #107 of 205 Old 01-03-2014, 02:33 PM - Thread Starter
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post #108 of 205 Old 01-03-2014, 02:35 PM
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Wow! What a pain that must have been...
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post #109 of 205 Old 01-03-2014, 02:35 PM - Thread Starter
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post #110 of 205 Old 01-03-2014, 02:42 PM
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you played them yet in their home position?

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post #111 of 205 Old 01-03-2014, 02:53 PM
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That will be the ultimate stealth woofage! cool.gif
Damn, I wish I had a space like that above my HT!
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post #112 of 205 Old 01-03-2014, 03:23 PM
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That will be the ultimate stealth woofage! cool.gif
Damn, I wish I had a space like that above my HT!

Wow! Seriously. eek.gif

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post #113 of 205 Old 01-03-2014, 04:46 PM
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That is awesome and scary.
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post #114 of 205 Old 01-03-2014, 05:22 PM
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Looks like you have room for 4 more up there. smile.gif
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post #115 of 205 Old 01-03-2014, 07:50 PM - Thread Starter
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It was really easy getting them in to place using the winch and ramp. I hooked the one on the right up for a quick listen and can tell already that they will need to be moved. I won't be able to get the mic to them for a few days. Most of the sound goes right through the roof since they pretty much open air with the drywall and insulation out. The neighbor called and thanked me for knocking the dust off the ceiling for them as I blasted a few tracks by Excision. That was just one at medium volume.
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post #116 of 205 Old 01-03-2014, 07:52 PM - Thread Starter
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Looks like you have room for 4 more up there. smile.gif

Too late, already braced up the ceiling so I wouldn't have any bad thoughts like that!
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post #117 of 205 Old 01-03-2014, 08:15 PM
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ha. The entire surface area of the roof of your house is probably broadcasting sound like an exciter

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post #118 of 205 Old 01-03-2014, 11:45 PM
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give this one a play at some point, would love to hear your thoughts smile.gif
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post #119 of 205 Old 01-04-2014, 05:46 AM
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. The neighbor called and thanked me for knocking the dust off the ceiling for them as I blasted a few tracks by Excision. That was just one at medium volume.

That was my only concern as I pondered what would happen at my place if that were even possible here.
I have an outdoor system with two 10" horns and it rocks the neighborhood with only 150w applied. I can't imagine two ghorns with any kind of power having a route to the outside. eek.gif

You might see some for sale signs popup after movie night at your place.biggrin.gif

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post #120 of 205 Old 01-04-2014, 06:21 AM
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If there was ever a time where audio nirvana could shine its favorable light on you and allow you to put the subs in the right place on the first try, this would have been it. I guess there is no audio nirvana.

Thank you for allowing me a place to point my Wife when she thinks I am "Crazy".

Well done.
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