Hey guys...we need a little rallying here... - Page 390 - AVS Forum
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post #11671 of 11690 Old 11-20-2014, 07:13 AM
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Originally Posted by mikela View Post
Ah, i see. I was thinking of a simpler box. Like you said, as long as it's about 1 cubic foot internal space, it works.
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post #11672 of 11690 Old 11-20-2014, 07:57 AM
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The more discussion I see on Atmos, the more I think it's something that would NEVER work in my real-world environment.

My walls are asymmetrical, there are openings in the middle of the room, ceiling fans. Not to mention it would take expert level knowledge to properly install. And how many Atmos designers have taken into consideration that WIVES like to move furniture including couches, which means different listening positions?

Frankly, I don't even really think it's 5.1 or 7.1 or 9.1 that makes such a great improvement in sound, it's the QUALITY of the sound coming from quality audio gear, and properly designed speakers, wherever they are placed.

Nothing is a fact unless it agrees with my opinion.

Symmetry pleases the eye, but it usually offends the ears where low frequencies are concerned. -Yoda Fitzmaurice
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post #11673 of 11690 Old 11-21-2014, 08:59 PM
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Would it be ill-advised to use a Fusion-8" in an angled box on my ceiling for ATMOS overheads? It would need to be on its side.I'm not sure about the interactions with the ceiling in an orientation like this.



I'm planning to use Volt-8's in an angled enclosure, but I'm considering backup plans if the driver continues to be out-of-stock.

Dude, are you made of leprechauns? Cause that was awesome!

The Plains Theater Has Begun
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post #11674 of 11690 Old 11-22-2014, 07:59 AM
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Originally Posted by J_P_A View Post
Would it be ill-advised to use a Fusion-8" in an angled box on my ceiling for ATMOS overheads? It would need to be on its side.I'm not sure about the interactions with the ceiling in an orientation like this.

I'm planning to use Volt-8's in an angled enclosure, but I'm considering backup plans if the driver continues to be out-of-stock.
How many rows do you have? I'd be much more concerned with lobing than with wall interaction if placed in that orientation. The wall interaction effects could be mostly equalized out.
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post #11675 of 11690 Old 11-22-2014, 08:02 AM
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Two rows (plus a third row bar). I was trying to orient the speakers to point directly at the MLP to limit issues with lobing, but it would certainly be a concern for the second row due to the narrow(er) pattern. I've almost convinced myself to optimize for the first row and let the second row get whatever it gets.


Dude, are you made of leprechauns? Cause that was awesome!

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post #11676 of 11690 Old 11-24-2014, 11:24 AM
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You doing those sketchup yourself? Where you learn those skills ?

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"Too much is almost enough. Anything in life worth doing is worth overdoing. Moderation is for cowards."
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post #11677 of 11690 Old 11-24-2014, 11:47 AM
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Yeah, I've been playing with sketchup since I started designing my theater. It's a pretty straightforward program. if you've got any computer skills you can probably learn enough in an hour to do a good model of a theater. It's a lot easier to see how things are going to work out with a model like this as well. It's been a huge help with speaker placement, sight lines, seating placement, etc.

Dude, are you made of leprechauns? Cause that was awesome!

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post #11678 of 11690 Old 11-24-2014, 11:49 AM
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Originally Posted by Mfusick View Post
You doing those sketchup yourself? Where you learn those skills ?
Where else?...YouTube!!
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post #11679 of 11690 Old 11-24-2014, 12:35 PM
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Quote:
Originally Posted by Mfusick View Post
You doing those sketchup yourself? Where you learn those skills ?
I teach sketchup and have made lots of video tutorials.
http://teachers.sd43.bc.ca/dpurych/C...Tutorials.aspx

In the sketchup tab on my website is over 40 videos. Your welcome to try them.
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post #11680 of 11690 Old 11-26-2014, 08:28 PM
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Originally Posted by Erich H View Post
I could really use some help deciding on this speaker layout.

Update on the SEOS 3 way design with a prototype photo.

I decided that it made the most sense to start with the first one in that picture for a couple reasons. Using a single 12" woofer will keep the whole speaker at 8 ohms. The cost of the speaker would also be less. The height of the waveguide is about perfect (I made it slightly taller). A single woofer in the enclosure will allow it to run without a subwoofer for music. I will look into using 2 woofers, but that model would likely be tuned higher and would need a subwoofer. The good news with duals is that the lower woofer chamber would not change size over the single full range model.


Basically, this would be the Maximus-12: Very powerful woofer, oversized midrange with a SEOS waveguide one size bigger than the mid.


Because this is the Maximus that uses the higher end parts, I thought it would be fun to make the prototypes baffle just as nice. I had some bamboo left over and figured why not. Keep in mind that the midrange shown is NOT the one that will be used, I just happened to have that one sitting around from earlier in the year.

When I drew out this enclosure at only 12" deep and 44" tall there wasn't much room around the midrange chamber after its depth and the internal bracing. Very little volume was left for the woofer to actually use. So I changed the idea a little bit and made the woofer into it's own box. This has some benefits that could help out later. Easier to move, easier to ship. Easy to change to dual woofers with just a different baffle. The midrange and waveguide can be toed easily without actually needing to move the woofer as much. The same woofer and enclosure could be used in a cheaper design......by only changing out the top portion of the speaker. The same woofer and enclosure could be used as a midbass module, or a stand for other small speakers. After weighing all those options, I decided to just make it 2 enclosures. It could be made back into a single one quite easy.


I'm also not 100% sure about the ports just yet. I use those so the designer can easily take them out and adjust the length to tweak the final tuning if needed. I really love the way this is turning out.

So here's what it could look like:






I should have taken a better side view photo, but forgot. My prototype just uses some regular birch plywood.


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post #11681 of 11690 Old 11-26-2014, 09:55 PM
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Please take my money. Love them.

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post #11682 of 11690 Old 11-26-2014, 10:27 PM
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Quote:
Originally Posted by Erich H View Post
My prototype just uses some regular birch plywood.
Slumming it, I see.
Beautiful.
Have you hooked them up, yet?

Downloadable FREE demo discs:
http://www.avsforum.com/t/1475769/de...ently-authored 

Did you really need to quote that entire post in your reply?
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post #11683 of 11690 Old 11-26-2014, 10:33 PM
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That's just a prototype cabinet I have to send to the designer so he can do the crossover work. The speaker isn't actually done yet.
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post #11684 of 11690 Old Yesterday, 05:14 AM
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Erich that is very nice looking. I'll be watching this develop for sure.
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post #11685 of 11690 Old Yesterday, 08:41 AM
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So that's a SEOS 10, 8" midrange, and 12" woofer?
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post #11686 of 11690 Old Yesterday, 09:17 AM
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Those look awesome! Makes me want to do bass drivers under my SEOS 12/DNA360/AE tops.

Edit: I look forward to seeing this happen.

Last edited by filtor1; Yesterday at 09:18 AM.
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post #11687 of 11690 Old Yesterday, 09:36 AM
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Yes, that's the SEOS-10 over an 8" midrange and 12" woofer. That one will use a B&C midrange (not the one pictured) and the FL-450 compression driver. Should be a neat speaker.
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post #11688 of 11690 Old Yesterday, 09:40 AM
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I hope someone if Florida builds these so I can hear them. They look awesome.
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post #11689 of 11690 Old Yesterday, 12:15 PM
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Quote:
Originally Posted by Erich H View Post
Sounds like a good place to use the mini elliptical waveguide with the DNA-150 and a 5" woofer or two. The mini elliptical is only 2.5" deep.
Is there a design plan for this ?
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post #11690 of 11690 Old Yesterday, 12:45 PM
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Erich, awesome stuff. You said there would be a center as well? Or would something like the 88 Special work with these as a center? I was hoping to build a center sooner rather than later, as I don't have one right now. The L/R speakers I have now aren't bad, so I can definitely wait to replace those when your new designs are available. But I have no issue waiting for an awesome new 3-way center for these towers.

Another thought about your new designs: When possible, it would be awesome to have your designers spec out boxes optimized for full range vs crossed to a sub, even if you don't offer flatpacks for every option. If I don't need full range speakers, it'd be great to know what specs to use building a smaller ported or sealed box.

Also, I love the bamboo; it is gorgeous. I think that would give me a great WAF boost. And the bamboo looks great with the birch. Is it an option for your CNC guys to make mitred edges for the box?
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