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post #1 of 14 Old 12-11-2019, 10:41 AM - Thread Starter
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DIY center speaker

Hi, I have been lurking here for a while and have built a few projects from the information here (martycube, and 2x fullmarty subs). I am now looking to build a good center channel speaker. My theater room has a sloped ceiling and that puts my TV pretty low to the ground. I am looking for a center speaker design that is low in height. I have no restrictions on width.

Does anyone have any design recommendations for a center speaker with the low height restrictions? I am not looking for a flat pack. I will build from scratch. Basic dimensions are ok, as I can model it out in CAD.

Thanks in advance.
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post #2 of 14 Old 12-11-2019, 10:48 AM
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What is your maximum height?

What are your main speakers and receiver/amp driving the front stage?

What is your desired frequency response? SPL?

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post #3 of 14 Old 12-11-2019, 10:53 AM - Thread Starter
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Quote:
Originally Posted by jevchance View Post
What is your maximum height?

What are your main speakers and receiver/amp driving the front stage?

What is your desired frequency response? SPL?
Hi, I could probably go as high as 12", but would prefer less. I will probably build main L/R speakers in the next couple months to go with the center, but right now for temporary speakers, my center is the weakest. Something that I could build matching L/R speakers later would be good. I am driving it with a Denon X6500H.

I don't know enough about audio to have a desired frequency response or SPL. I am looking for recommendations. I don't want to spend crazy money, but wouldn't mind being at the high side of the bang for the buck curve.

Thanks,

Jeff
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post #4 of 14 Old 12-11-2019, 10:56 AM
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it depends . . .

do you have a height dimension range?

the F4Q4 could have been a prime candidate but Bigfoot got the last one . . .

but maybe some research / questions could put you on the trail

@mtg90 might have some info
the designer is Curt Campbell

HTH

my pair , after AudyXT32 runs would get xo'd @ 40 hz.

a wondrously space saving yet monstrous sounding speaker

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post #5 of 14 Old 12-11-2019, 12:22 PM
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Just looking at what DIYSG has to offer, the HTM 8 and HT 8 are 12.5 inches tall, Cobalt 8 MTM is 10 inches tall, the Apollo 7 MTM and Helix Dome MTM are both 9.5 inches tall.

They all come with front baffles, but the flat pack it optional.
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post #6 of 14 Old 12-11-2019, 12:47 PM
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.02

my pair of HTM6's as pictured , at a distance of 6' , mol, from the mlp
for a majority of music and movies, with subs
create a sound field of superlatives
the F6CC is usually not needed
as the SEOS horns with moderate toe-in leave nothing to be desired
all too often better than DSU or Neo:X in a room that does 5.3.4 ATMOS very well
props to @Erich H and the DIYSG crew

the F15's that use the 15" SEOS, as do the HTM12's
also do a very very good phantom center fill, at 11' from the mlp in my living room
not sure what your "temporary" speakers are
but you might consider a L/R upgrade

depends on your HT particulars

post some dimensions, pics , budget, mitigating factors etc.

HTH
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DIY FAN Denon X4400 , ATI A 2000 for 7.4.6 SCATMOS Sammy 82" 4K/HDR
L/R: Fusion 15 V2 , C: 88 Special , SL/SR: 88 Special(V2) , RL/RR: F-3, TF/TR: Volt 6's TM: SLX, FH: F4Q4
SUBMAXIMUS V2, ,Submaximus V3,LOWARHORNCustom Dual Driver VBSS,2 x 6000DSP
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post #7 of 14 Old 12-11-2019, 01:24 PM
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https://www.diysoundgroup.com/home-t...-1010-kit.html

That should fit the requirements.

Chris
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post #8 of 14 Old 12-11-2019, 02:21 PM - Thread Starter
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Quote:
Originally Posted by asarose247 View Post
.02

my pair of HTM6's as pictured , at a distance of 6' , mol, from the mlp
for a majority of music and movies, with subs
create a sound field of superlatives
the F6CC is usually not needed
as the SEOS horns with moderate toe-in leave nothing to be desired
all too often better than DSU or Neo:X in a room that does 5.3.4 ATMOS very well
props to @Erich H and the DIYSG crew

the F15's that use the 15" SEOS, as do the HTM12's
also do a very very good phantom center fill, at 11' from the mlp in my living room
not sure what your "temporary" speakers are
but you might consider a L/R upgrade

depends on your HT particulars

post some dimensions, pics , budget, mitigating factors etc.

HTH
Interesting, so you use two speakers toed in as the center?

Jeff
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post #9 of 14 Old 12-11-2019, 02:23 PM - Thread Starter
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Quote:
Originally Posted by a77cj7 View Post

That should fit the requirements.

Chris
This is interesting as well. I can't seem to find a photo of it on the web, do you know of any photos?

Thanks,

Jeff
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post #10 of 14 Old 12-11-2019, 02:24 PM
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Quote:
Originally Posted by a77cj7 View Post
https://www.diysoundgroup.com/home-t...-1010-kit.html

That should fit the requirements.

Chris
Looking at the specs, the HTM 1010 would pair great with some HTM 12s down the road.
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post #11 of 14 Old 12-11-2019, 02:26 PM
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Quote:
Originally Posted by jeffseine View Post
This is interesting as well. I can't seem to find a photo of it on the web, do you know of any photos?



Thanks,



Jeff


Its brand new, don’t think any have been posted. You can contact Erich.

I would assume its a MTM with 2 10” woofers and a large waveguide.

Chris
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post #12 of 14 Old 12-11-2019, 02:31 PM
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Quote:
Originally Posted by a77cj7 View Post
Its brand new, don’t think any have been posted. You can contact Erich.

I would assume its a MTM with 2 10” woofers and a large waveguide.

Chris
It's two 10's and a SEOS 77 wave guide. They are listed under the "What's Included" tab. I'm guessing a SEOS 77 would be a 7 inch square wave guide, but I can't find any pictures of it.
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post #13 of 14 Old 12-11-2019, 02:41 PM
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Since you are able to build without flat packs, here are a couple more options from reputable designers:



https://www.divine-audio.com/khancenter/


http://techtalk.parts-express.com/fo...h-amigas/page3
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post #14 of 14 Old 12-11-2019, 03:51 PM
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Interesting, so you use two speakers toed in as the center?

The stereo imaging of the L/R "works" as expected in creating a full frontal sound stage

really fantastic for 99%+ of legacy stereo

they do not lack . .

DIY FAN Denon X4400 , ATI A 2000 for 7.4.6 SCATMOS Sammy 82" 4K/HDR
L/R: Fusion 15 V2 , C: 88 Special , SL/SR: 88 Special(V2) , RL/RR: F-3, TF/TR: Volt 6's TM: SLX, FH: F4Q4
SUBMAXIMUS V2, ,Submaximus V3,LOWARHORNCustom Dual Driver VBSS,2 x 6000DSP
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