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DIY SEOS for HT upgrade

post #1 of 229
11/19/12 at 1:44pm
Thread Starter 
Greetings to All - and a Happy Thanksgiving!
Like the title says; I am joining the SEOS DIY club to upgrade my HT.
I am currently running Klipsch all around. What I will be replacing is as follows:

1) First project will be named "BUC" (Big Ugly Center - my nickname), actually a "big Mal" using 4 Auru NS6s.
I have a fixed front screen, and needed a lower profile box to go under my screen. If all goes well; this will replace a Klipsch RC7 that is buried in my overhead soffit (and angled down)
2) Replacing L/R Klipsch RF35's with; SEOS 12 / Delta-light 2512 in sealed boxes.

I have my Aurus, Deltalight 2512s, and the crossover parts for BUC all ready to go. My SEOS12's and 350/360 drivers are on order. I will likely go with one of Erich's flat-pack kits for the L/R fronts.
Below is a sketch of what I hope will become my new center channel:
BUCsketch.jpg
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post #2 of 229
11/19/12 at 3:33pm
Subbed, eagerly awaiting post-Turkey sawdust making.
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post #3 of 229
11/19/12 at 5:23pm
Thread Starter 
Thanks Brad!
Sawdust and Stuffing, has a nice ring to it.....
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post #4 of 229
11/20/12 at 7:48am
I am also looking forward to seeing how this turns out. Will this type of driver alignment work just as well as using a regular Seos-12 in the normal vertical configuration?
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post #5 of 229
11/20/12 at 9:30am
Thread Starter 
Not sure how much it will give up to the normal SEOS vertical configuration. I have a fixed screen, so was stuck with going lower profile. Time will tell how much I gave up.
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post #6 of 229
11/26/12 at 6:37pm
Thread Starter 
Brought home a sheet of 3/4" baltic birch for the Holiday weekend.
Actually made sawdust tonight, and now have all pieces of "BUC" ready to assemble, EXCEPT for the front baffle.

Tomorrow; I will post photos smile.gif
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post #7 of 229
11/27/12 at 7:28am
Thread Starter 
Reduced a sheet of Baltic Birch to this:
Buc1-piecescut.jpg

And started gluing it up. The red clamps were just purchased, "Bessey" corner clamps (they work well)
Buc2-boxassembled.jpg
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post #8 of 229
11/27/12 at 7:52am
Looking good! That's a large center. biggrin.gif +1 on the Bessey clamps, they are great.
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post #9 of 229
11/27/12 at 8:17am
I'm anxious to see a Big Mal. Man, that Baltic Birch looks good!
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post #10 of 229
11/27/12 at 8:55am
Cool project! Subscribed. I had just made a little sawdust of my own from the LCR stands a made for my SHO-10s over the weekend. Lookin forward to seeing "BUC" come to life and man those corner clamps are great!!
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post #11 of 229
11/27/12 at 9:16am
Thread Starter 
Thanks Guys!

The final dimensions changed a bit.
Outside dimensions are now a follows:

W = 32"
H = 13.5"
Depth = 10.5"

It's starting to become a busy time of year , I will share progress as it occurs.
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post #12 of 229
11/28/12 at 6:29am
Thread Starter 
A little more progress last night:
I will be recessing the back panel, and making it removable. To accommodate this I ripped some of the BBirch into 1" strips. These strips will ultimately be brad nailed and glued around the inside rear perimeter of the back, and will serve as the stop that the back panel is screwed to.


For now they are temporarily attached with some double stick tape. I need to adjust the set back distance of these strips; so that when I add foam weather stripping and screw the back panel on, that it becomes a flush fit.


And as you can see the back panel dimensions are very close. I just need to trim about a 1/6" from the height of the back panel so that it will "just" fit into the box.
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post #13 of 229
11/29/12 at 7:07pm
Good idea making the back panel removable.
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post #14 of 229
11/30/12 at 12:45pm
Thread Starter 
Thanks!
Hopefully it will rarely be opened smile.gif
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post #15 of 229
12/1/12 at 3:22pm
Hey Cuzed, for some reason, I didn't pick on you substituting 6" woofer for the 4". I'm looking at your box build thinking that looks awfully big for a Malcolm. Now I get the Big Mal reference.

You are creating quite a beast!!! eek.gif
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post #16 of 229
12/1/12 at 5:47pm
Thread Starter 
Thanks! Yeah - it should be interesting. I just did some more cutting, and need to put up some more photos:
I trimmed the removable back panel to fit,
and started on another panel for the interior, for window cross-bracing. Sound familiar? Yes I am stealing from your build, just re-read it this AM smile.gif
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post #17 of 229
12/2/12 at 5:11am
Quote:
Originally Posted by cuzed2 View Post

Thanks! Yeah - it should be interesting. I just did some more cutting, and need to put up some more photos:
I trimmed the removable back panel to fit,
and started on another panel for the interior, for window cross-bracing. Sound familiar? Yes I am stealing from your build, just re-read it this AM smile.gif

Cool. The back panel trimming was a pain. Probably just my crappy wood skills, but I had to do a lot of trimming to get them to fit. Also, don't forget (I did) that the weatherproofing will add like a 1/4" even when compressed. It'll still work, but doesn't look great.

No worries on "stealing" from my thread. It's really a compilation of thread theft, anyway. I learned a lot from other build threads and hoped to pass it on.

Good luck!! Can't wait to hear your reviews.
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post #18 of 229
12/2/12 at 7:10am
Thread Starter 
Java,
I did indeed see your comment about leaving enough room for the back panel sealing gasket. Thanks for noting that in your thread :-)
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post #19 of 229
12/2/12 at 5:01pm
Thread Starter 
Big Mal - Weekend Update
Actually spent a couple hour prepping Big Mal ("BUC") for the arrival of my SEOS drivers.

First task was to fit the back panel


Then cut and test-fit a panel for window bracing


After using the sabre saw, rounding all edges with a router/round-over-bit, and drilling for 1" dowel supports


And a test fit of the window-brace "sub-assembly"
(the 3 small black stripes are some sample weatherstrip materials for a gasket seal of the back panel)

Next Up: while I await the SEOS and 350 driver, I might start on the crossover....??
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post #20 of 229
12/2/12 at 7:38pm
Oh, man! That is gonna be some speaker. Looking forward to seeing this one through to completion. What are your plans on finishes?

Regards,

RTROSE
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post #21 of 229
12/2/12 at 7:50pm
Thread Starter 
Thanks RT!
I think I am going to use a black finish that "Big " used do his DIY speakers ,
It's called Duratex .
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post #22 of 229
12/4/12 at 4:33pm
Subscribed!
I was a little late to the party, but It looks like I haven't missed the show.
I just got caught up on the main "Hey Guys..." / SEOS thread after being swamped at work, and it feels like Christmas came early.

I also have a fixed screen and have been trying to figure out what to do about getting a center underneath it.
So far this has been a awesome build. I am really looking forward to hearing what you think once everything comes together.
If you to get some pictures of how you mount the crossover in the enclosure that would be extremely helpful.

I will probably start making some sawdust in late January, and seeing this build thread has been encouraging.
I may end up building something similar to this to pair with a pair of SEOS 12 / Designer 12's for my L/R's.

Thanks,

- Max
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post #23 of 229
12/4/12 at 10:02pm
Great progress! That "sub assembly" looked complicated to build. Props!
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post #24 of 229
12/5/12 at 6:48am
Thread Starter 
Max,
Thanks for stopping by and commenting,
Quote:
Originally Posted by 3AMRecords View Post

Subscribed!
I was a little late to the party, but It looks like I haven't missed the show.
I just got caught up on the main "Hey Guys..." / SEOS thread after being swamped at work, and it feels like Christmas came early.
I also have a fixed screen and have been trying to figure out what to do about getting a center underneath it.
**How much room under your screen do you have to work with? I am limited to 23"

So far this has been a awesome build. I am really looking forward to hearing what you think once everything comes together.
** Hopefully my SEOS shipment will arrive by Christmas and I will have results to share in early Jan.

If you to get some pictures of how you mount the crossover in the enclosure that would be extremely helpful.
** I will be adding more photos for sure, I'm thinking the crossover will locate just off-center on the window braving, or centered on the floor of the box fastened with industrial Velcro?

I will probably start making some sawdust in late January, and seeing this build thread has been encouraging.
I may end up building something similar to this to pair with a pair of SEOS 12 / Designer 12's for my L/R's.
** The designer 12's sound very intriguing..
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post #25 of 229
12/5/12 at 6:50am
Thread Starter 
Quote:
Originally Posted by Reddig View Post

Great progress! That "sub assembly" looked complicated to build. Props!

Thanks Reddig!
I was actually surprised how quickly the window bracing came together
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post #26 of 229
12/9/12 at 6:00pm
Looking great! Will be watching with intense interest. I have 14 of these NS6's.
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post #27 of 229
12/9/12 at 6:24pm
Thread Starter 
Pgwalsh,

Thanks for stopping by. As soon as I get my SEOS 12s and CDs from Erich - I'll be ready to proceed.
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post #28 of 229
12/10/12 at 9:36am
Cuzed2- What drivers are you using for this? I am not familiar with the Auru ns6 drivers, are they considered pretty good for the mids? Are you going with the DNA-360 for the CD and then a Seos-12 horn? What do you plan to do for a crossover?
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post #29 of 229
12/10/12 at 9:45am
Quote:
Originally Posted by Martycool007 View Post

Cuzed2- What drivers are you using for this? I am not familiar with the Auru ns6 drivers, are they considered pretty good for the mids? Are you going with the DNA-360 for the CD and then a Seos-12 horn? What do you plan to do for a crossover?
The NS6's are a closeout driver. http://www.parts-express.com/pe/showdetl.cfm?partnumber=299-030

Bill did a design called Daniel, which uses 2 of them and Cuzed2 is using them for an beefier Malcom. Apparently they are very efficient and are quite good for surrounds or centers. MTG has also made a design with a different horn.
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post #30 of 229
12/10/12 at 10:13am
Great job so far, you will be impressed when ya get those waveguides and cds, and Erich's pakaging is second to none.

Quote:
Originally Posted by cuzed2 View Post

Pgwalsh,
Thanks for stopping by. As soon as I get my SEOS 12s and CDs from Erich - I'll be ready to proceed.
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