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post #1 of 140 Old 10-09-2013, 05:36 AM - Thread Starter
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Name not yet established!
Need to save some money prob in nov will start the build.
Going to be using 4 dayton18in subwoofers. 2 in a 15cuft ported box. So two of these boxes i will be building. Thanks to LTD02 for helping with the design!
48in H X 22in W x 32in D
2 6in ports 27in long tuning about 18hz.
With 1000watts spl around 125db i hope.
What do you guys think? What can be tweaked? To get more spl or better sound quality. Or what ever you think?
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post #2 of 140 Old 10-09-2013, 07:59 AM
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Originally Posted by frankie2075 View Post

What do you guys think?

Quite the conquest there ... cool.gif

Well, that's a helluva big and heavy box. That's a pro audio, touring size sub ... it all looks good as long as the physical aspect of the end product can be dealt with. I'm not sure how big your room is, and what mains you'll end up using with them, but be mindful of set-up, room treatment and bass trapping will play a huge role in final sound quality.

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post #3 of 140 Old 10-09-2013, 08:07 AM - Thread Starter
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Originally Posted by FOH View Post

Quite the conquest there ... cool.gif

Well, that's a helluva big and heavy box. That's a pro audio, touring size sub ... it all looks good as long as the physical aspect of the end product can be dealt with. I'm not sure how big your room is, and what mains you'll end up using with them, but be mindful of set-up, room treatment and bass trapping will play a huge role in final sound quality.
Yes its based off the look of the conquest. Room is 65'L x 20'W x 9'H
I have sho10s for now
Just thinking if vented will do anything diff for it?
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post #4 of 140 Old 10-09-2013, 08:17 AM
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Quote:
Originally Posted by frankie2075 View Post

Yes its based off the look of the conquest. Room is 65'L x 20'W x 9'H
I have sho10s for now
Just thinking if vented will do anything diff for it?

Massive room, ... the Sho-10s are good speakers,
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thinking if vented will do anything diff for it?

I don't understand, this is a vented design, no?

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post #5 of 140 Old 10-09-2013, 08:18 AM
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Looks like a great sub! You can see from my Avatar that I built sort of a 15” version and it turned out great performance wise! I hope your new build is what your looking for and look forward to your thread. No suggestions due to LTD is one of the go to guys I go crying to when contemplating building a sub.

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post #6 of 140 Old 10-09-2013, 08:21 AM
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not sure why he created a parallel universe though:

this is where we were discussing his build:

http://www.avsforum.com/t/1490514/want-to-start-diying-big-room-what-can-i-go-with/60

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post #7 of 140 Old 10-09-2013, 08:24 AM - Thread Starter
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Originally Posted by FOH View Post

Massive room, ... the Sho-10s are good speakers,
I don't understand, this is a vented design, no?

Right now its a ported design but what would this do if its vented? Benfits? Pros? Con?
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post #8 of 140 Old 10-09-2013, 08:25 AM
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ported and vented mean the same thing.

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post #9 of 140 Old 10-09-2013, 08:26 AM - Thread Starter
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Originally Posted by steve nn View Post

Looks like a great sub! You can see from my Avatar that I built sort of a 15” version and it turned out great performance wise! I hope your new build is what your looking for and look forward to your thread. No suggestions due to LTD is one of the go to guys I go crying to when contemplating building a sub.
Very cool! Yes I'm excited wish i can just start now but thats not happening. Hopefully this gives me what I'm looking for and isn't to difficult to build.
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post #10 of 140 Old 10-09-2013, 08:26 AM
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"Name not yet established!"

you didn't like this? http://www.avsforum.com/t/1490514/want-to-start-diying-big-room-what-can-i-go-with/60#post_23816903

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post #11 of 140 Old 10-09-2013, 08:27 AM - Thread Starter
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Originally Posted by LTD02 View Post

not sure why he created a parallel universe though:

this is where we were discussing his build:

http://www.avsforum.com/t/1490514/want-to-start-diying-big-room-what-can-i-go-with/60
Just to give the sub its own place.
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post #12 of 140 Old 10-09-2013, 08:38 AM
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Quote:
Originally Posted by LTD02 View Post

"Name not yet established!"

you didn't like this? http://www.avsforum.com/t/1490514/want-to-start-diying-big-room-what-can-i-go-with/60#post_23816903
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Originally Posted by frankie2075 View Post

Just to give the sub its own place.

Yeah you have to have a name! The name suggested sounds much better/menacing than another sub that was recently built here a few pages back. biggrin.gif

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post #13 of 140 Old 10-09-2013, 08:41 AM - Thread Starter
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Originally Posted by LTD02 View Post

"Name not yet established!"

you didn't like this? http://www.avsforum.com/t/1490514/want-to-start-diying-big-room-what-can-i-go-with/60#post_23816903
No i do but just waiting for it to be born to name it! Lol think of some other names as we'll tho EVEREST! Lol ill make a poll after shes built! With some names yours being in there
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post #14 of 140 Old 10-09-2013, 08:56 AM - Thread Starter
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Yeah you have to have a name! The name suggested sounds much better/menacing than another sub that was recently built here a few pages back. biggrin.gif
Lol yea u think i should name it now?! Lil premature isn't it? Lol
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post #15 of 140 Old 10-09-2013, 09:42 AM
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Lol yea u think i should name it now?! Lil premature isn't it? Lol

Yeah give it some time and something will resonate!

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post #16 of 140 Old 10-09-2013, 12:38 PM - Thread Starter
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Yeah give it some time and something will resonate!
ANNIHILATION IT IS! i let it marinate.
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post #17 of 140 Old 10-09-2013, 12:55 PM
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Sweet! Conquest on 'roids!

That should be quite the performer!

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post #18 of 140 Old 10-09-2013, 12:59 PM - Thread Starter
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Sweet! Conquest on 'roids!

That should be quite the performer!
YES!! I am hoping soo! 2 of these better get the job done!
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post #19 of 140 Old 10-09-2013, 01:01 PM
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YES!! I am hoping soo! 2 of these better get the job done!

I can't imagine not! Looking forward to your build.smile.gif

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post #20 of 140 Old 10-09-2013, 01:22 PM
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So one 6" port will do okay with one of those woofers? If so, that would make a flat pack design much easier.
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post #21 of 140 Old 10-09-2013, 01:33 PM - Thread Starter
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So one 6" port will do okay with one of those woofers? If so, that would make a flat pack design much easier.
Erich,
I believe it will be okay not sure tho need someone expertise to chime in. Or u can make it a vented flat pack.
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post #22 of 140 Old 10-09-2013, 01:46 PM
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Erich,
I believe it will be okay not sure tho need someone expertise to chime in. Or u can make it a vented flat pack.

It is difficult to make something like this a flat pack.

There are just too many variables involved when you get into cabinets with this volume. They become a one-off because everyone wants a different shape for their setup and others may want fewer but larger ports, or ports out the back or top or bottom or....
The dimensions you want will only appeal to a few in a cabinet this large.

You can always ask, but it also difficult and costly to ship larger panels as in a build like this.

If it can be a proven performer, it would be a killer flat pack though.

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post #23 of 140 Old 10-09-2013, 02:33 PM
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"So one 6" port will do okay with one of those woofers? If so, that would make a flat pack design much easier."

borderline.

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post #24 of 140 Old 10-09-2013, 02:40 PM
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"So one 6" port will do okay with one of those woofers? If so, that would make a flat pack design much easier."

borderline.

+1

I would go with two on this bad boy!

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post #25 of 140 Old 10-09-2013, 03:07 PM
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he was asking about how many ports per driver. 1 6" port per 18" driver at 18mm excursion is borderline imho.

I think the conquest has a little more throw in it, something like 28-32mm if I had to guess. but that is just a guess.

there is another ported sub which uses an 18" driver with that kind of excursion and has about the same port area as a 6". I would call that one under ported by a bit, but it seems to work ok in practice.

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post #26 of 140 Old 10-09-2013, 03:11 PM
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Exactly, one 6" port per driver would not cut it in my opinion. I didn't check velocities, but I would guess that there might be some chuffing with some quality drivers in play.

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post #27 of 140 Old 10-09-2013, 05:17 PM
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Would three 4" models be good enough versus a single 6"? As LTD02 mentioned, I'm talking about 'per woofer'. The only issue is the front baffle size. Those 4" ports are about 7.25" in diameter, which means the baffle would need to be at least 27" tall and 23.5" wide. The box would only need to be about 28" deep to yield 7.5cuft. So the ports would still need an elbow.


Ideally the flat pack was designed to use plastic ports because a slot port would add a lot of extra weight with at least 2 big slabs of MDF. These would already need to be shipped in 2 packages because of the weight.
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post #28 of 140 Old 10-09-2013, 06:03 PM
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3.14*(3*3)=28.26
(3.14*(2*2))*3=37.68

Thoose 3 4" would have 33% more area than a single 6"
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post #29 of 140 Old 10-09-2013, 06:08 PM - Thread Starter
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So maybe my sub should use bigger dia ports? Or make them longer? To bring the velocity down and less chance of chuffing. Cause after all the work i do i dont want to be left with a tree house. Lol
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post #30 of 140 Old 10-09-2013, 06:11 PM
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Longer with the same diameter only lowers the tuning. To get the velocity down you need to have more area in you port(s)
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