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View Full Version : If this don't work I give up



NoLoud4U
09-03-2012, 10:19 PM
I have never tried a purpose built loud box. I always thought I could get good numbers with a daily box, that hasnt worked out.
We will see this weekend if my vision works out. A tick over 3 cubes net with a 7 inch aero tuned at 39hz. I guess it's going to be real peaky but I don't care anymore.
38.47 square inches of port area. 12.63 per cube.
Wish me luck

rebelfromva
09-03-2012, 10:22 PM
I had my XL tuned right around there. Should do good.

dbeez
09-03-2012, 10:26 PM
i hope but dont see it doing the trick.

NoLoud4U
09-03-2012, 10:27 PM
I didn't mind it tuned at 35. I love it tuned at 31 though

---------- Post added at 09:27 PM ---------- Previous post was at 09:26 PM ----------


i hope but dont see it doing the trick.

Speak up? It's a bit late now though

mazdakid
09-03-2012, 10:35 PM
what number are you going for?

Kangaroux
09-03-2012, 10:37 PM
Port area seems real small for a loud/burp box...I woulda gone for like 16-18 per cube but that's just me.

NoLoud4U
09-03-2012, 10:38 PM
Port area seems real small for a loud/burp box...I woulda gone for like 16-18 per cube but that's just me.

It's a aero. And it's not really a burp box

NoLoud4U
09-03-2012, 10:41 PM
what number are you going for?

I just want to break a 50. This box is a copy of one that did a 149 with level 3s and AQ2200

RangerDangerV2
09-03-2012, 10:45 PM
moar port. shoot for 20-25 per cu ft.

NoLoud4U
09-03-2012, 10:53 PM
moar port. shoot for 20-25 per cu ft.

It's a aero. 12 is already big

Villeza1
09-03-2012, 10:58 PM
How big is the enclosure?

Kangaroux
09-03-2012, 10:59 PM
It's a aero. 12 is already big

Not really. Had a local doing 52's out of the trunk with 2 12's and a 10" aero.

RangerDangerV2
09-03-2012, 11:01 PM
Not really. Had a local doing 52's out of the trunk with 2 12's and a 10" aero.
myjaja ;

av83
09-03-2012, 11:05 PM
I have never tried a purpose built loud box. I always thought I could get good numbers with a daily box, that hasnt worked out.
We will see this weekend if my vision works out. A tick over 3 cubes net with a 7 inch aero tuned at 39hz. I guess it's going to be real peaky but I don't care anymore.
38.47 square inches of port area. 12.63 per cube.
Wish me luck

iirc hispls ; made one that was tuned to 40, and wasn't thrilled about the fact it had a fairly flat response. he was shooting for a bit more of a "one-note-wonder"....
I think it had a giant square port though. And it was in a truck.

Villeza1
09-03-2012, 11:06 PM
DATS wt3 will help...

NoLoud4U
09-03-2012, 11:13 PM
How big is the enclosure?

3.05 net. DC subs don't like any bigger with my power.

NoLoud4U
09-03-2012, 11:14 PM
Not really. Had a local doing 52's out of the trunk with 2 12's and a 10" aero.

Burp? I still want to play some music. I'll give up the low stuff for a good number. I still have a daily box if I want it

Villeza1
09-03-2012, 11:21 PM
3.05 net. DC subs don't like any bigger with my power.

before sub displacement?

NoLoud4U
09-03-2012, 11:23 PM
before sub displacement?

After everything. Subs, bracing and the octo. It's 7 but 8.5 outer. That's something else, with my height I can't go any bigger

Villeza1
09-03-2012, 11:26 PM
After everything. Subs, bracing and the octo. It's 7 but 8.5 outer. That's something else, with my height I can't go any bigger

Sounds like it'll work, only thing left to do is test.

NoLoud4U
09-03-2012, 11:28 PM
Sounds like it'll work, only thing left to do is test.

I hope so. I'll be playing MECA on the 30th and im stuck in MOD 3. It's state finals do I might be sucking

pro-rabbit
09-03-2012, 11:31 PM
Just build a burp box. Increase port area and raise tuning.

This is the classic, "You can not have your cake and eat it too.." situation.

NoLoud4U
09-03-2012, 11:34 PM
Just build a burp box. Increase port area and raise tuning.

This is the classic, "You can not have your cake and eat it too.." situation.

All I need is a 150. Can't demo with a burp box

Kangaroux
09-03-2012, 11:35 PM
Burp? I still want to play some music. I'll give up the low stuff for a good number. I still have a daily box if I want it

Actually he was doing 53's on a burp. Did 150 - 151 on music in the low 30's. Loudest stock street trunk in the world lol

NoLoud4U
09-03-2012, 11:37 PM
Actually he was doing 53's on a burp. Did 150 - 151 on music in the low 30's. Loudest stock street trunk in the world lol

Well it's a good thing I got a hatch. It's not a ideal hatch but still a hatch

Villeza1
09-03-2012, 11:37 PM
Actually he was doing 53's on a burp. Did 150 - 151 on music in the low 30's. Loudest stock street trunk in the world lol

Impressive

pro-rabbit
09-03-2012, 11:38 PM
All I need is a 150. Can't demo with a burp box

If you want that, then a simple "quick" enclosure won't cut it. You need buy 10-15 sheets of wood and get building/testing/rebuilding/testing and keep repeating and make sure to take very clear notes. Personally, I write on each enclosure I test with in a single car so I can know exactly what everything did.

My notes normally contain...

Year/Make/Model
What sub
How much power(actual clamp)
SPL
How it sounded
Any notes I felt needed to be wrote for a later date..like box position or loading issues...or what ever.

NoLoud4U
09-03-2012, 11:38 PM
Very impressive.

pro-rabbit
09-03-2012, 11:39 PM
Well it's a good thing I got a hatch. It's not a ideal hatch but still a hatch

Any hatch is ideal once you figure out the proper loading.

CAT MAN
09-03-2012, 11:39 PM
coming to collinsville?

NoLoud4U
09-03-2012, 11:41 PM
If you want that, then a simple "quick" enclosure won't cut it. You need buy 10-15 sheets of wood and get building/testing/rebuilding/testing and keep repeating and make sure to take very clear notes. Personally, I write on each enclosure I test with in a single car so I can know exactly what everything did.

My notes normally contain...

Year/Make/Model
What sub
How much power(actual clamp)
SPL
How it sounded
Any notes I felt needed to be wrote for a later date..like box position or loading issues...or what ever.

I get it but it's not simple or quick. You know how many boxes ive been through. I found out a few things along the way. Peak is always in the mid high 40s no matter where I tune after the deadener. Subs like to be up and toward the rear, port likes to be center. That's all I got right now

---------- Post added at 10:41 PM ---------- Previous post was at 10:41 PM ----------


coming to collinsville?

No.

Villeza1
09-03-2012, 11:44 PM
I get it but it's not simple or quick. You know how many boxes ive been through. I found out a few things along the way. Peak is always in the mid high 40s no matter where I tune after the deadener. Subs like to be up and toward the rear, port likes to be center. That's all I got right now

Have you tested with different sized enclosures? Smaller, larger?

NoLoud4U
09-03-2012, 11:46 PM
Have you tested with different sized enclosures? Smaller, larger?

Within reason. Yes. Anything much bigger then 3 cubes bottoms out. Anything much less don't reach xmax

pro-rabbit
09-03-2012, 11:47 PM
Have you tested with different sized enclosures? Smaller, larger?

port area alterations... internal or external ports..

subs/port up with it sealed off around the box(basic beauty panel just more rigid)....

Some times the stupidest things make the biggest differences.

---------- Post added at 09:47 PM ---------- Previous post was at 09:46 PM ----------


Within reason. Yes. Anything much bigger then 3 cubes bottoms out.

At what frequency is it bottoming out? Odds are that is user error.

NoLoud4U
09-03-2012, 11:48 PM
port area alterations... internal or external ports..

subs/port up with it sealed off around the box(basic beauty panel just more rigid)....

Some times the stupidest things make the biggest differences.

---------- Post added at 09:47 PM ---------- Previous post was at 09:46 PM ----------



At what frequency is it bottoming out? Odds are that is user error.

It was in the high 30hz range. Nothing low

CAT MAN
09-03-2012, 11:49 PM
It was in the high 30hz range. Nothing low

shrink it to 2.4 for each same tuning and everything. watch your score.

Villeza1
09-03-2012, 11:51 PM
port area alterations... internal or external ports..

subs/port up with it sealed off around the box(basic beauty panel just more rigid)....

Some times the stupidest things make the biggest differences.

Exactly, I was getting to that point but very slowly Lol.

NoLoud4U
09-03-2012, 11:58 PM
I know what everybody is saying. Thats why I decided to copy a proven design. I had to go a bit wider to give the motors clearance but the specs are almost identical. We also are doing it flush mount

26535767

CAT MAN
09-03-2012, 11:58 PM
those are my subs lol

NoLoud4U
09-04-2012, 12:04 AM
those are my subs lol

Those are level 3s

myjaja
09-04-2012, 12:40 AM
myjaja ;

You rang my lord?

RangerDangerV2
09-04-2012, 12:43 AM
You rang my lord?

iirc you had 2 12s and a 10 inch aero that was loud... help op out dawg.

myjaja
09-04-2012, 12:49 AM
iirc you had 2 12s and a 10 inch aero that was loud... help op out dawg.

I wouldnt mind helping but I doubt I can be much help. Ive only built two enclosures my whole life, and that was the second one I built. Im a complete novice when it comes to box building. lol

RangerDangerV2
09-04-2012, 12:50 AM
I wouldnt mind helping but I doubt I can be much help. Ive only built two enclosures my whole life, and that was the second one I built. Im a complete novice when it comes to box building. lol

well you were doing 50s so you must know something lol

myjaja
09-04-2012, 01:07 AM
well you were doing 50s so you must know something lol

Well, if I remember correctly, my enclosure was 36.5 x 17.5 x 22 and around 5.8-5.9 cu ft net and tuned to around 32-33 hz. Had a 10" diameter port that was 26.5 inches long. Almost the whole back end of my trunk was foamed up. lol

But that worked well for my subs, cant say the same for dc lvl 3's.

CAT MAN
09-04-2012, 01:13 AM
his are xl m2 12s

hispls
09-04-2012, 05:01 AM
iirc hispls ; made one that was tuned to 40, and wasn't thrilled about the fact it had a fairly flat response. he was shooting for a bit more of a "one-note-wonder"....
I think it had a giant square port though. And it was in a truck.

Really depends on the sub(s) how much peak you'll get by tuning how high. Some measurements show big box actually tunes @ 36hz with subs inverted and box in place. Lot of loading up and around the rear hatch I think.

I wouldn't be scared to tune @ 45-48hz trying to chase numbers.

CAT MAN
09-04-2012, 05:47 AM
i still dont get how you have a hatch. 5k. good subs. low numbers? :confused:

subzero
09-04-2012, 06:00 AM
I woulda done a swappable port, one tuned to 51hz and other tuned to 30hz.

psych0ticnemes1
09-04-2012, 02:38 PM
Actually he was doing 53's on a burp. Did 150 - 151 on music in the low 30's. Loudest stock street trunk in the world lol

How much power?

pro-rabbit
09-04-2012, 02:42 PM
I know what everybody is saying. Thats why I decided to copy a proven design. I had to go a bit wider to give the motors clearance but the specs are almost identical. We also are doing it flush mount

26535767

Unless it was "proven" in your car...it is not proven at all.

---------- Post added at 12:42 PM ---------- Previous post was at 12:41 PM ----------


i still dont get how you have a hatch. 5k. good subs. low numbers? :confused:

net volume..port area...tuning...loading.....

nothing working for him would be my guess.

Kangaroux
09-04-2012, 02:56 PM
How much power?

Pair of DD M3a's I believe. The subs were custom built TRF's so they took the power without any trouble

psych0ticnemes1
09-04-2012, 02:59 PM
Pair of DD M3a's I believe. The subs were custom built TRF's so they took the power without any trouble

Call me a newb but how much power is that? 4k+ or so?

mazdakid
09-04-2012, 03:06 PM
That could be over 6k depending on load. Street stock limit is 2k watts.

pro-rabbit
09-04-2012, 03:09 PM
Call me a newb but how much power is that? 4k+ or so?

M3's are a bit better then a AQ2200.....

psych0ticnemes1
09-04-2012, 03:14 PM
M3's are a bit better then a AQ2200.....

Ah ok. I know they are $$$ too.

Btw, I think I've settled on sticking with an 18" when trying to enhance my low end. I'll just keep tweaking the box as necessary I guess. These Type Es are for entry level setups.

NoLoud4U
09-04-2012, 07:28 PM
i still dont get how you have a hatch. 5k. good subs. low numbers? :confused:

It's loud. Just not meter loud.

---------- Post added at 06:28 PM ---------- Previous post was at 06:28 PM ----------


Unless it was "proven" in your car...it is not proven at all.

---------- Post added at 12:42 PM ---------- Previous post was at 12:41 PM ----------



net volume..port area...tuning...loading.....

nothing working for him would be my guess.

That is my car. Just not my car

pro-rabbit
09-04-2012, 07:30 PM
It's loud. Just not meter loud.

---------- Post added at 06:28 PM ---------- Previous post was at 06:28 PM ----------



That is my car. Just not my car



Loud but not meter loud is normally a tuning issue. Just tune higher.

CAT MAN
09-04-2012, 07:40 PM
Loud but not meter loud is normally a tuning issue. Just tune higher.

ive had both :dontknow: this new one will be a non meter sutup tho. i wanna see how low these dc's can go. then ill go back to my meter stage since it is winter. usually like daily setups in the winter spl in the summer. :confused:

JayDubb757
09-04-2012, 08:07 PM
Here's some pics of DCtC ; 's new box.



http://i50.tinypic.com/dcsg7r.jpg

http://i50.tinypic.com/344xshy.jpg

http://i48.tinypic.com/riro1f.jpg

http://i47.tinypic.com/2zi7ksp.jpg

http://i46.tinypic.com/2rc0rqw.jpg

JayDubb757
09-04-2012, 08:10 PM
http://i46.tinypic.com/iz92q0.jpg

http://i49.tinypic.com/f3f1xz.jpg

http://i48.tinypic.com/23i9s3r.jpg

http://i45.tinypic.com/359lu95.jpg

http://i46.tinypic.com/6rj87c.jpg

rebelfromva
09-04-2012, 08:18 PM
Nice

CAT MAN
09-04-2012, 08:35 PM
jeff is the man

JayDubb757
09-04-2012, 08:40 PM
jeff is the man

Did you get the trim rings yet?

NoLoud4U
09-04-2012, 10:08 PM
Loud but not meter loud is normally a tuning issue. Just tune higher.

I wanted to move air and hit in the 20s. I got that now I want a score

CAT MAN
09-04-2012, 10:09 PM
Did you get the trim rings yet?
did today they look good. im going to sand them anf put them together. i have an idea i want to pursue.

I wanted to move air and hit in the 20s. I got that now I want a scoremeh

NoLoud4U
09-04-2012, 10:20 PM
did today they look good. im going to sand them anf put them together. i have an idea i want to pursue.
meh

It blends with a high end front stage. Don't be mad

pro-rabbit
09-04-2012, 10:30 PM
I wanted to move air and hit in the 20s. I got that now I want a score

With everything there has to be sacrifices. Just part of the game.

dbeez
09-06-2012, 12:50 PM
Results

kushy_dreams
09-06-2012, 10:41 PM
This is kind of a stupid question but how does the port attach and is it removable to allow for other tunes?

NoLoud4U
09-06-2012, 10:46 PM
Results

Its not done yet, wont get to meter till next week. I need a sealed and headrest score

NoLoud4U
09-06-2012, 10:48 PM
This is kind of a stupid question but how does the port attach and is it removable to allow for other tunes?

It is. JayDubb757 ; Jeff can explain it. It can go as high as 45 and low as 33.

JayDubb757
09-08-2012, 06:53 PM
Finished the box up.
Here's some pics.


http://i50.tinypic.com/1eqmpj.jpg

http://i48.tinypic.com/23sjkev.jpg

http://i45.tinypic.com/b4uc0g.jpg

http://i46.tinypic.com/27zg490.jpg

JayDubb757
09-08-2012, 06:55 PM
Moar pics



http://i46.tinypic.com/20qddmr.jpg

http://i47.tinypic.com/2napdsj.jpg

http://i47.tinypic.com/1zcmsnb.jpg

http://i47.tinypic.com/24pyqdg.jpg

kushy_dreams
09-08-2012, 10:16 PM
Its hard to not laugh when looking at octoport boxes because it always looks like a butthole

Very nice craftsmanship on the box, I hope it sounds as good as it looks

CAT MAN
09-08-2012, 10:21 PM
Its hard to not laugh when looking at octoport boxes because it always looks like a butthole

Very nice craftsmanship on the box, I hope it sounds as good as it looks
it should. Derek shoulda tuned higher tho. his car peaks int eh 50s iirc

NoLoud4U
09-08-2012, 10:38 PM
it should. Derek shoulda tuned higher tho. his car peaks int eh 50s iirc

It's normally in the mid 40s.

JayDubb757
09-09-2012, 10:28 PM
2 DC Audio XL M2 12's on a DC audio 5k - YouTube (http://www.youtube.com/watch?v=gvkqaiJM6zk&feature=g-all-c//)

CAT MAN
09-10-2012, 12:19 AM
2 DC Audio XL M2 12's on a DC audio 5k - YouTube (http://www.youtube.com/watch?v=gvkqaiJM6zk&feature=g-all-c//)

still has alot more in it. i thought he tuned for spl. didnt realize it was 38hz.

NoLoud4U
09-10-2012, 11:44 AM
still has alot more in it. i thought he tuned for spl. didnt realize it was 38hz.

You're not loud. Don't talk till you are.

pro-rabbit
09-10-2012, 11:50 AM
You're not loud. Don't talk till you are.

I'm not loud :crap: