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Discussion Starter #1
Hey everyone


I've been working on Erich's latest offering of the SEOS 12 line designed by Bill Waslo with the Deltalite-12.


Kit here: http://www.diysoundgroup.com/plastic-seos-12/seos-speaker-kits/seos-deltalite-kit.html (SFW)

My Setup:


I am making three of them as my left, right, and center channel speakers. They will be replacing Jim Holtz Statements as my theater left / right and an old Audax center channel. They will be powered with an Emotiva XPA3. They will be cutoff at 80hz and paired with a Danley DTS-10 sub.

Unpacking:


As usual Erich packs everything absurdly well.




SEOS 12 Horns


Very well made. Nice weight to them, great finish, and super solid.




Compression Driver


Echoing the comments of others these thing are hefty! Surprisingly heavy for the size.



Flat Packs:


Well packed.





Dry Fitting:


Everything went together great dry fitting. The CNC cuts are excellent.





Assembly:


The way Erich had the kit CNC'ed this is the back piece. You simply glue everything to the already lined up back channels. It makes the build really straight forward and intuitive. You would have to try pretty hard to mess it up.




Here is with the bracing installed. The one thing to note is that the horizontal braces may not be square vertically. I used a square to make sure they were. Probably not a huge issue either way but maybe Erich can make a grove in the vertical brace as well so that the braces have to be perfectly square.






I used PL Premium and decided to put the whole rest of the box (with the exception of the front baffle) together in one go. They all went really smoothly.







Here are the three waiting for front baffles.



What's Next:


Gluing front baffles on today. Then going to sand edges perfectly smooth, paint with Duratex, and attach Speakon connectors. Waiting for the Deltalite drivers and crossover parts to come from Erich. Parts-Express hadn't given everything to him yet but he was kind enough to send the rest over my way.

Questions:


What is the recommending amount of lining / should they be stuffed with some polyfill?
 

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Discussion Starter #2
10/2/12 Update:


Got them painted with two coats of Duratex each.


Here are all three compared to one the Statements I built.




I really love Duratex. Looks great, I think the texture is sweet, durable, and very easy to roll on once you get the hang of it.




My weekend also consisted of building a pair of each of these:


The little guy is an Overnight Sensation.


The bigger guy is an Amiga.


Background is a DTS-10 ***For Scale*** ;-)




and this Dayton 10 with a plate amp:

 

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Discussion Starter #3
10/20/12 Update:


Had a busy few weeks but found time the other day to get them done!


Speakon's Added. I decided to put them on the side so I could but the speakers right up against the wall.




Used R13 / Spray Glue to line the cabinet walls.




Compression Driver connected to the SEOS12 horn:




My very ugly crossovers. I applaud those who make beautiful crossovers and stick them inside of a box never to be seen again.




Crossovers attached inside with velcro:




Test fitting horn:




Finishing up and testing #1




#1 works, finishing up #2 and #3




All three stacked next to the Statement.




Listening impressions coming!
 

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Wow, you work really fast, and I'm glad everything arrived in good shape. It's nice to see that the new boxes go together easy enough even without directions. But I will eventually type something up.


You mentioned having the CNC cut some dados in the side pieces to make sure the horizontal braces were square. Those were in the original design and I actually took them out for a reason. The braces don't really need to be glued in the box perfectly square anymore to still get a perfectly squared up box..


I had the grooves on the back panel cut fairly tight so the braces would stand up straight on their own and hold close at 90 degrees. After you glue the braces to the back panel, you'll see that even if they aren't exactly at 90 degrees, it won't matter and the sides will still glue on perfectly. However, if by chance someone glued the braces slightly crooked, it would be much more difficult to line them up if there were grooves in the side panel.


So the new method completely eliminates any problems with that and still gives the same exact end product. You could have those braces glued in seriously wrong and they would still line up just fine with the side panels. That's good stuff!
It's how the new subwoofer boxes will be. Actually, I think you might have gotten one of those as well.
 

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Looking at your pictures more, I'm curious if you glued the entire box together at one time? If so, that's pretty impressive.


I guess the PL adhesive has a much longer open time to allow for that? Whenever I glue up test boxes, I just use normal wood glue. There was a some concern that the thicker PL adhesive would fill the joints a bit more more and things might not line up as good. But it looks like that's not the case after everything gets clamped down and the glue gets squished out. Did you see any issues?



I do have all the crossover parts. Parts Express was out of the 12" Deltalites and they were suppose to be back in stock last week. When I called they said it might not be until the 12th. That wasn't good, so I actually called Eminence to see if they kept any in stock. They had 12 and let me make the unusual order for 10 of the woofers.
They'll be letting me know about shipping today. I told them if it was going to take more than a few days, I'd probably drive there to pick them up. They're about 1.5 hours away, but I made the trip once before when I helped with the MFW-15 group buy last year.
 

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Discussion Starter #6
You make it easy! In the time I assembled these I probably would have only finished cutting half the pieces. Gotcha on the braces.


I did glue it all together in one go. PL makes it pretty easy and it squishes out totally fine. I've never had issues with things not lining up because of it. It squeezes out of the joints as you apply pressure and makes a really nice seal. You do need to clamp it well but you have 15-20 minutes of play time. The other plus is that it expands and will fill any voids you do have making a completely airtight box.


Sounds good on the woofers. Thanks!
 

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Discussion Starter #8

Quote:
Originally Posted by Java  /t/1431867/seos12-deltalite-erich-flatpack-kit-build#post_22451007


Dude. You make it look too easy.

No sawdust. No broken tools. No blood.


As far as filling, I used regular R-13 insulation. Here's my post on the pink stuff: http://www.avsforum.com/t/1417294/seos12-2512-build/240#post_22341822

Don't worry, I managed bleed opening the boxes with scissors. Both build styles are certainly fun and I enjoy blasting sawdust into the air as much as anyone. However, the flat packs make you feel wickedly efficient.
 

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Quote:
Originally Posted by dsl1  /t/1431867/seos12-deltalite-erich-flatpack-kit-build/0_50#post_22450811


Hey everyone

I've been working on Erich's latest offering of the SEOS 12 line designed by Bill Waslo with the Deltalite-12.

Kit here: http://www.diysoundgroup.com/plastic-seos-12/seos-speaker-kits/seos-deltalite-kit.html (SFW)

Excellent, new kit and plenty of pictures. My kind of speaker-porn.
Quote:
Originally Posted by dsl1  /t/1431867/seos12-deltalite-erich-flatpack-kit-build/0_50#post_22450811


They will be replacing Jim Holtz Statements as my theater left / right and an old Audax center channel.

With these new speakers nearly finished, you'll be looking to get rid of those old, over-sized, obsolete speakers. I'd be happy to take them off your hands...
 

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Quote:
Originally Posted by BeerParty  /t/1431867/seos12-deltalite-erich-flatpack-kit-build#post_22452562


With these new speakers nearly finished, you'll be looking to get rid of those old, over-sized, obsolete speakers. I'd be happy to take them off your hands...

I would just be interested your impressions between the two! the statements certainly have a great reputation, but are certainly a different design style than what you are about to have. Ill be tuned in for sure
 

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Horse stall matting, kettlebells, atlas stones...looks like a nice S&C or Crossfit gym you have there.



(Nice work on the speakers too, thanks for the detailed writeup!)
 

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Discussion Starter #15

Quote:
Originally Posted by beastaudio  /t/1431867/seos12-deltalite-erich-flatpack-kit-build#post_22452862


I would just be interested your impressions between the two! the statements certainly have a great reputation, but are certainly a different design style than what you are about to have. Ill be tuned in for sure

The Statements are wonderful speakers. I have only great things to say about them. Fantastic soundstage, great overall sound. I am certainly interested in the differences and will post my thoughts.


Quote:
Originally Posted by EvilYoda  /t/1431867/seos12-deltalite-erich-flatpack-kit-build#post_22452906


Horse stall matting, kettlebells, atlas stones...looks like a nice S&C or Crossfit gym you have there.


(Nice work on the speakers too, thanks for the detailed writeup!)

Yes that is my gym :)
 

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Quote:
Originally Posted by EvilYoda  /t/1431867/seos12-deltalite-erich-flatpack-kit-build#post_22453706


That's awesome! I'm glad to see someone sharing two of my hobbies. Crossfit or no?

Crossfit but unaffiliated. Currently have about a hundred members.
 

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Following with interest but am I understanding correctly that if you want the kit + enclosure you're looking at $370 apiece?


I'm sure the performance is solid but the price is getting up there in the DIY world, no?



James
 

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How much is this kit and does it come with crossover already built? I love kits for DIY and the price is more than DIY because someone is doing all the labor for you. My eD kits were done exactly the same way, all I had to do was put together and glue. I also nailed the enclosure together but that was for subs. Kits are great! Erich H is doing a great thing here!


BTW, what are the specs on this speaker, like sensitivity and power handling, basically, how loud will it play and extension? I am using DR-250's which use deltalite 10's and 20 piezo tweeters in a horn design(BFM) and based on their sound this should perform very well! More expensive kits for the big rooms(needing more spl) and the cheaper kits for the smaller rooms. Awesome stuff!
 

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Quote:
Originally Posted by mastermaybe  /t/1431867/seos12-deltalite-erich-flatpack-kit-build#post_22454545


I'm sure the performance is solid but the price is getting up there in the DIY world, no?

James

It's probably more expensive than us cheapo DIY'ers are used to, but that's a cream de la cream speaker there. Performance is top tier with top notch quality drivers. I'm not sure what this would typically retail for. Hard to even find something like this in the retail world. Well over $2k for a pair though I imagine. Of course that would be finished with a warranty and you wouldn't have to lift a finger. But it's hard to say there isn't value in this kit.


Erich is working on cheaper kits too. Some of those will sneak in under or around $250/each.
 
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