SEOS 12/ DNA360 / TD12M Mains and Inwall Center Build - Page 4 - AVS Forum
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DIY Speakers and Subs > SEOS 12/ DNA360 / TD12M Mains and Inwall Center Build
FOH's Avatar FOH 11:18 AM 05-21-2013
Quote:
Originally Posted by Martycool007 View Post

I have recently heard the Klipsch THX Ultra-2 in-wall setup powered by a really nice
Lexicon MC-12hd, and the sound was...to put it nicely....no where near as good as the RF series that I demoed that same day, (note that even though the RF82's sounded superior, I still think they were severely lacking).

Way too many variables, as the room and the manner in which it absolutely dominates the sound, makes separate listening sessions in differing conditions very hard to compare.

(btw, I've experienced many Klipsch models extensively, in addition to still owning three different RB models)


Quote:
Originally Posted by Martycool007 View Post

Is it even possible to get better SQ out of a trio of in-walls compared to the same or similar speakers that would be used in a traditional manor?

Yes, absolutely.

From the above post;
In brief review, the benefits of flush mounting are;
1.) diffraction issues are lessened
2.) any potential cancellation between the speakers and the front wall is minimized
3.) the lower freqs are more efficiently matched to the space


But smile.gif again it still hinges on if they're properly executed/set-up. I'd suspect the overwhelming majority of inwalls are poorly executed (but then again that's likely true for non-inwalls too).

Thanks

brian6751's Avatar brian6751 06:12 PM 05-21-2013
What type screws does everyone use for these waveguides?
Sibuna's Avatar Sibuna 06:32 PM 05-21-2013
Erich included some with all the stuff i ordered i believe they are these

http://www.parts-express.com/pe/showdetl.cfm?partnumber=081-425

i could be wrong about the number but i think they are #8 1" panheads

could be the #6 but that should get you close
brian6751's Avatar brian6751 07:52 PM 05-21-2013
Quote:
Originally Posted by Sibuna View Post

Erich included some with all the stuff i ordered i believe they are these

http://www.parts-express.com/pe/showdetl.cfm?partnumber=081-425

i could be wrong about the number but i think they are #8 1" panheads

could be the #6 but that should get you close

shoot. for $3 i can by both sizes. i need some for the woofers as well anyway. Thanks Man!!
Sibuna's Avatar Sibuna 08:06 PM 05-21-2013
you might want longer than a 1" for the woofers but i guess it depends specifically how the surround of the woof is made
brian6751's Avatar brian6751 08:22 PM 05-21-2013
That's true. I doubt it's very thick though. And the baffle is 1" at the most with the recess. I think 1" screws will be fine.
brian6751's Avatar brian6751 08:27 PM 05-22-2013
Quote:
Originally Posted by Erich H View Post

Thanks, there was a good amount of design work that went into making them easy to assemble.

You did a great job getting them together. I'm glad they went together okay. You're the first person to try the Tempest box customized for the A&E woofer. To keep the cost down, I decided to leave the inner baffles the same on both. The woofer cut out on the inner baffle is close enough that I didn't see any reason for you to spend extra money to recut 2 panels. Everything else lines up pretty darn good though. I will probably go ahead and rework that brace on the next round of boxes that gets cut.

I'll go ahead and ship the precut ports now that you're sure you want to use those. I forget where they tune the box, but they will allow you to run full range if needed.

Don't forget the dna360's!!
brian6751's Avatar brian6751 04:20 PM 05-25-2013
crossovers mounted. i drilled 4 holes at the edges of the board and used 1" brass wood screws.


Martycool007's Avatar Martycool007 08:35 AM 05-26-2013
They are shaping up nicely! What other speakers do you have on hand? Just curious!
brian6751's Avatar brian6751 06:04 PM 05-26-2013
i only have my pair of Crites CS-1T's right now. they are doing a damn fine job. i never got to try them in a good setup before. they are really good speakers and i could totally live with them as my permanent mains...................................if i wasnt a nut tongue.gif
Martycool007's Avatar Martycool007 04:45 AM 05-27-2013
Quote:
Originally Posted by brian6751 View Post

i only have my pair of Crites CS-1T's right now. they are doing a damn fine job. i never got to try them in a good setup before. they are really good speakers and i could totally live with them as my permanent mains...................................if i wasnt a nut tongue.gif

Well how do those Crites CS-1T's compare to these Seos speakers? I would love to hear your subjective opinions on how these two compare! I would imagine that they sound pretty similar, perhaps with the CS-1T winning out, but I could be wrong!
brian6751's Avatar brian6751 02:22 PM 05-29-2013
installed the foam. i left the bottom cavity uncovered. will that be ok you think?

just waiting on the AE drivers now. where have i heard that before? mad.gif


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tuxedocivic's Avatar tuxedocivic 03:01 PM 05-29-2013
I haven't been following along. Just poked my head in here and noticed the discussion on in-wall stuff. Make no mistake, in-wall speakers amount to a major upgrade. When I built in-walls it was a major improvement, one of those not so often major steps up. The theoritical benefits do manifest in real life benefits. The 3 or 4db advantage in the 120hz region where impedance is low, the woofer is making long strokes, and the subwoofer cross over hasn't kicked in yet, is MAJOR!
brian6751's Avatar brian6751 04:15 PM 05-29-2013
yep, now that i have my spandex At screen up, im really looking forward to it.

everything is all set. as soon as i get my TD12M's ill pop them in and get these things rock'n. Matt is also waiting on one of my TDM's so he can do the crossover for the inwall.



filtor1's Avatar filtor1 06:37 PM 05-29-2013
I have been watching these come together and I have to keep telling you that they look awesome! I am really digging the 3 round ports. Your build is inspiring. biggrin.gif
brian6751's Avatar brian6751 07:33 PM 05-29-2013
Quote:
Originally Posted by filtor1 View Post

I have been watching these come together and I have to keep telling you that they look awesome! I am really digging the 3 round ports. Your build is inspiring. biggrin.gif

Thanks man!!. i am watching yours as well. a little here. a little there. they will be done before you know it. i always liked the look of the Tempest's so using those flatpacks with the TDM woofers was a no brainer for me. if i didnt have the extra cash for the TDM's i would have built the Tempests. (and would be listening to them tonight lol) im just glad Erich had the baffles done. very cool.
maxserg's Avatar maxserg 07:38 PM 05-29-2013
Me too awaiting!
brian6751's Avatar brian6751 07:41 PM 05-29-2013
btw. it is the #8 screws that go with the seos waveguide. i also didnt take pictures of the 1/8 x 3/8 gasket tape i used around the outside edge of the waveguide. i then connected the corners with the tape to kind of encircle the mounting holes. ill take pics when i do the center channel.
brian6751's Avatar brian6751 07:09 PM 05-30-2013
so, everyone think this is enough dampening material? i didnt put anything in the bottom 3rd of the box.



brian6751's Avatar brian6751 06:46 PM 06-01-2013
after a PM to Matt, i decided to line the bottom section a little bit. i just wanted to leave plenty of room for the ports to breath.


gpmbc's Avatar gpmbc 07:09 PM 06-01-2013
Lookin good Brian is that regular egg create or?
brian6751's Avatar brian6751 07:20 PM 06-01-2013
yeah, its the regiular 1.5" stuff from PE.

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=260-516
bass addict's Avatar bass addict 09:14 PM 06-16-2013
And then...............?
brian6751's Avatar brian6751 09:06 AM 06-18-2013
Waiting on my TDM's........

The tension mounts!!!!
AV Science Sales 5's Avatar AV Science Sales 5 04:48 PM 06-18-2013
Quote:
Originally Posted by Martycool007 View Post

Well how do those Crites CS-1T's compare to these Seos speakers? I would love to hear your subjective opinions on how these two compare! I would imagine that they sound pretty similar, perhaps with the CS-1T winning out, but I could be wrong!

Not what I would expect. The SEOS uses a better CD, better waveguide, the TD12M is a much better driver and a better braced cabinet. That only leaves the implementation of the crossover.

Brian, your speakers look great. Hope you get your TD12M's soon so that you can fire them up and let us know what you think of them. smile.gif
LTD02's Avatar LTD02 07:36 PM 06-18-2013
brian, i'm not sure if that foam is going to absorb the backwave of the lower midrange frequencies.

i kind of doubt it. 2-3" of fiberglass or equivalent cotton insulation would be an alternative.

...

av, the tractrix horn used in the crites speaker looks pretty good. i wouldn't discount it too heavily.
filtor1's Avatar filtor1 08:19 PM 06-18-2013
Quote:
Originally Posted by LTD02 View Post

brian, i'm not sure if that foam is going to absorb the backwave of the lower midrange frequencies.

i kind of doubt it. 2-3" of fiberglass or equivalent cotton insulation would be an alternative.

...

av, the tractrix horn used in the crites speaker looks pretty good. i wouldn't discount it too heavily.

Is 2-3inches thick recommended?
brian6751's Avatar brian6751 08:41 PM 06-18-2013
well, well, well. what do we have here?!! about time!!!









initial impressions? these speakers are special. tons of detail all throughout. they are not yet level matched.

comparison to the CS-1T? not totally fair really, because they are not level matched and i never had the CS-1T's up to ear level like i do these. only tilted up. they do sound better as is though, especially once you start pushing them louder. they are also more expensive to build.

i will go ahead and say i like these better than my Cornscalas. they have all the detail up high and beat the Corns in the mid-range detail. i know thats saying a lot. the Cornscalas are $1200 plus a pair, but i stand by it.

these are all initial impressions. everyone is a sleep so i cannot really stretch them out yet.
brian6751's Avatar brian6751 08:42 PM 06-18-2013
Quote:
Originally Posted by LTD02 View Post

brian, i'm not sure if that foam is going to absorb the backwave of the lower midrange frequencies.

i kind of doubt it. 2-3" of fiberglass or equivalent cotton insulation would be an alternative.

...

av, the tractrix horn used in the crites speaker looks pretty good. i wouldn't discount it too heavily.

its 1.5". will 1/2" make that much difference? how will i know if its a problem?
filtor1's Avatar filtor1 08:57 PM 06-18-2013
Those look so tough Brian!
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