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View Full Version : Can I please break a 147?



NoLoud4U
08-19-2012, 02:02 PM
I'm about fed up trying to put up a decent number with daily tuning. Next idea since I can't fit 15s and a single 18 might not work.
Single 6 inch flared aero, tuned at 34, 17 inches total. Box will be 3.2 net after port subs and bracing. Subs up in the back corners, port firing out the back in the center about 8 inches from the back of the car.
Opinion? I'll post a pic of the current box in a minute. It's 3 cubes net tuned at 31hz. 54sq inches of port, 18 per cube. It did a 145 sealed up at 46hz.

RangerDangerV2
08-19-2012, 02:03 PM
2 12s should be able to do a 147 bro?? especially on 5k. honestly I dont think that it should be that hard...

NoLoud4U
08-19-2012, 02:06 PM
2 12s should be able to do a 147 bro?? especially on 5k. honestly I dont think that it should be that hard...

Well it is hard. If they where in a car with Atleast one flat surface it might be easier.

RangerDangerV2
08-19-2012, 02:09 PM
Well it is hard. If they where in a car with Atleast one flat surface it might be easier.

ahh... I see the issue. then make a flat surface. thats what I did.

NoLoud4U
08-19-2012, 02:10 PM
ahh... I see the issue. then make a flat surface. thats what I did.

This car is a **** bubble.

RangerDangerV2
08-19-2012, 02:11 PM
This car is a **** bubble.
make flat surfaces bro. easiest way to do it IMO. post pics of car.

NoLoud4U
08-19-2012, 02:14 PM
make flat surfaces bro. easiest way to do it IMO. post pics of car.

I'm on the phone now. Look at the build log. If you could post the pic of the last box on here that would be great.

CAT MAN
08-19-2012, 02:14 PM
Well it is hard. If they where in a car with Atleast one flat surface it might be easier.

im going to be as honest and as nice as i can with this situation.
You're going about it the wrong way IMO. Colby Sarver's dad /Knows tc's you need to lose that back seat. its a 2 door anyway who cares. just fold it down.
not seeing over a 45 sealed for you is a bit of a disapointment. I think you are tuning too low. There is a such thing.Yes i know you love lows you love musical setups but lets be honest here, what do you REALLY want to do? get loud or get low? you cant do both unless you have 4-6 subs in that thing and you know it. So pick your poisen. Be quiet and sound good to you or give up a little bit of it and meter well.

NoLoud4U
08-19-2012, 02:19 PM
im going to be as honest and as nice as i can with this situation.
You're going about it the wrong way IMO. Colby Sarver's dad /Knows tc's you need to lose that back seat. its a 2 door anyway who cares. just fold it down.
not seeing over a 45 sealed for you is a bit of a disapointment. I think you are tuning too low. There is a such thing.Yes i know you love lows you love musical setups but lets be honest here, what do you REALLY want to do? get loud or get low? you cant do both unless you have 4-6 subs in that thing and you know it. So pick your poisen. Be quiet and sound good to you or give up a little bit of it and meter well.

Back seat has been gone. Colby can't break a 50 sealed up tuned at 38hz, his peak. With more power then I have with 4 12s. Not that impressed. I hit a 47 sealed with the junk box before this one, the one Jeff messed with you with.

CAT MAN
08-19-2012, 02:21 PM
Back seat has been gone. Colby can't break a 50 sealed up tuned at 38hz, his peak. With more power then I have with 4 12s. Not that impressed. I hit a 47 sealed with the junk box before this one, the one Jeff messed with you with.

then you need sub and port back

hispls
08-19-2012, 02:23 PM
Box is too small and you're tuned too low. Get about 8 cube behind a pair of 12's with 120" port tune higher and see what happens. I've done 148's with pair of 12's tuned in the mid and high 30's but in bigger boxes.

NoLoud4U
08-19-2012, 02:24 PM
then you need sub and port back

That's what I have now. I think it wants the port in the center. That's how a real loud TC had it, I wanted to copy that box but he ran level 3s and my motors are to wide to fit. He was tuned at 40 with a 7.5 inch octo. Running a AQ2200

NoLoud4U
08-19-2012, 02:26 PM
Box is too small and you're tuned too low. Get about 8 cube behind a pair of 12's with 120" port tune higher and see what happens. I've done 148's with pair of 12's tuned in the mid and high 30's but in bigger boxes.

Not with DC subs. Big box equals broke subs.

---------- Post added at 02:26 PM ---------- Previous post was at 02:25 PM ----------

I'll post a few pics in a sec. You will see what I'm talking about.

mazdakid
08-19-2012, 02:28 PM
http://img507.imageshack.us/img507/5006/lowendjpg.jpg (http://imageshack.us/photo/my-images/507/lowendjpg.jpg/)

Uploaded with ImageShack.us (http://imageshack.us)

mylows10
08-19-2012, 02:29 PM
subs forward and aero ports out the rear just like the crx's keep the box at recommended size too ,if you have a hatchback if not then subs and port forward ,again aero ports 6" x 2 ,tune it a bit higher for max spl ,you can always plug one port up for a lower tuning or change out the cylinder of the port to longer ones for daily music

mylows10
08-19-2012, 02:30 PM
ports on wrong side and subs too far back

RangerDangerV2
08-19-2012, 02:32 PM
Not with DC subs. Big box equals broke subs.

---------- Post added at 02:26 PM ---------- Previous post was at 02:25 PM ----------

I'll post a few pics in a sec. You will see what I'm talking about.

im telling you... you want something that will get loud go with atomic or dd... they will both hold up in a larger box. just my 2 cents

NoLoud4U
08-19-2012, 02:32 PM
ports on wrong side and subs too far back

The box I had before, both subs and port back, i flipped to see what was better. port on driver side was a db less

JayDubb757
08-19-2012, 02:33 PM
Maybe try something like this?
http://i49.tinypic.com/2f0fuok.jpg

NoLoud4U
08-19-2012, 02:33 PM
im telling you... you want something that will get loud go with atomic or dd... they will both hold up in a larger box. just my 2 cents

I dont want a big box. I dont have that much room. Dont say DC subs dont get loud cause you know thats BS

CAT MAN
08-19-2012, 02:35 PM
I dont want a big box. I dont have that much room. Dont say DC subs dont get loud cause you know thats BS

no but dd can be more efficient. im afraid of my new box lol.....

RangerDangerV2
08-19-2012, 02:35 PM
I dont want a big box. I dont have that much room. Dont say DC subs dont get loud cause you know thats BS

im not saying that they dont get loud... the team that I used to be on only ran dc... they get loud, but can they take loads of abuse?? i dont think so. big box+big power=abuse.

mylows10
08-19-2012, 02:36 PM
try subs more forward and port on drivers side then .move the box forward and back to find the sweet spot

NoLoud4U
08-19-2012, 02:36 PM
This POS box, 3 cubes net tuned at 35hz did a 147 at 50hz.26535435This 3 cubes tuned at 31hz did a 45 at 46hz26535436This is what I wanted to do but wont fit. Level 3s off a AQ2200, 7.5 inch octo, tuned I think in the low 40s, did a 149 at the headrest 26535437

NoLoud4U
08-19-2012, 02:38 PM
try subs more forward and port on drivers side then .move the box forward and back to find the sweet spot

I did, where they are at now is the spot. Subs right under the window line

CAT MAN
08-19-2012, 02:38 PM
This POS box, 3 cubes net tuned at 35hz did a 147 at 50hz.26535435This 3 cubes tuned at 31hz did a 45 at 46hz26535436This is what I wanted to do but wont fit. Level 3s off a AQ2200, 7.5 inch octo, tuned I think in the low 40s, did a 149 at the headrest 26535437

it fit for him whats your prob?

NoLoud4U
08-19-2012, 02:39 PM
it fit for him whats your prob?

His motors where right on top the port. Mine are to big

CAT MAN
08-19-2012, 02:40 PM
and also what are you using for a calculator? because i know alot of people that tune wrong in torres

mylows10
08-19-2012, 02:40 PM
I did, where they are at now is the spot. Subs right under the window line

i would still try dual 6" aeros

JayDubb757
08-19-2012, 02:40 PM
Try a slot port in the middle.

NoLoud4U
08-19-2012, 02:42 PM
i would still try dual 6" aeros

Where are they going to go? Cant go vertical and I dont think Horizontal will work

---------- Post added at 02:42 PM ---------- Previous post was at 02:41 PM ----------


Try a slot port in the middle.

I was trying to get away from that. I didnt want any bends. No bends would be 46hz tuning.

CAT MAN
08-19-2012, 02:42 PM
Where are they going to go? Cant go vertical and I dont think Horizontal will work

subs on one side port to the other box all the way back.

mylows10
08-19-2012, 02:43 PM
you'd have to make the box a bit smaller ,but out the back

NoLoud4U
08-19-2012, 02:45 PM
you'd have to make the box a bit smaller ,but out the back

Tuning will be in the 50s. This is still a daily box. 38 is as high as I want to go, which should be enough

mylows10
08-19-2012, 02:47 PM
thats why i like the aeros ,easy to mess with the tuning , 4-5 cubes with 4 6'" ports out the rear ,you can plug 2 ports for lower tuning

RangerDangerV2
08-19-2012, 02:48 PM
Tuning will be in the 50s. This is still a daily box. 38 is as high as I want to go, which should be enough

small box, 20sq inches of port per woofer tuned in the mid 30s. like 1.5cu ft per woofer small.

NoLoud4U
08-19-2012, 02:50 PM
small box, 20sq inches of port per woofer tuned in the mid 30s. like 1.5cu ft per woofer small.

Slot or aero, I hope you are talking slot?

RangerDangerV2
08-19-2012, 02:54 PM
Slot or aero, I hope you are talking slot?

slot

T.I.K.
08-19-2012, 03:14 PM
Grow some nuts and wall it.

rebelfromva
08-19-2012, 03:19 PM
You could wall the XL 15s

NoLoud4U
08-19-2012, 03:27 PM
Grow some nuts and wall it.

Are you paying for it? Im game if you are

JayDubb757
08-19-2012, 03:34 PM
Trade the twelves for 4 beast tens, port in the middle.

hispls
08-19-2012, 05:09 PM
[QUOTE=DCtC;8130293]Not with DC subs. Big box equals broke subs.[COLOR="Silver"]

If you're breaking a pair of 12's off of 5K DC's build quality is really going to ****. You should hit up Jacob for Z recone kit and lrn2 recone. We did up a friend's 15" lv5 with Z parts and he liked it better than when he bought it. Held up to an Atomic 5K well enough on music (mechanically), and does high 48's to low 49's.

That all being said, if you don't have room for a larger box, just say so, because if youre breaking subs, you should lrn2 subsonic filter, or lrn2 recone with better parts. bigger box = louder all things equal.

http://i53.photobucket.com/albums/g69/hispls/2-12%20shocker%20builds/DSC02522.jpg

This box did 148.8 with 3 12's, 148.6 after I covered up the 3rd hole and just went with 2. Both @ 36-38hz IIRC. It would likely gain if I bothered to double-wall the sides. I think it flexes a good bit as/is

murph
08-19-2012, 05:24 PM
Dc subs, lots of power and low tuning = dead soft parts. You are going to have to sacrifice the lows on that power in a big box with those subs. Nice motors and cooling but, the soft parts will go down the drain...

NoLoud4U
08-19-2012, 05:27 PM
[QUOTE=DCtC;8130293]Not with DC subs. Big box equals broke subs.[COLOR="Silver"]

If you're breaking a pair of 12's off of 5K DC's build quality is really going to ****. You should hit up Jacob for Z recone kit and lrn2 recone. We did up a friend's 15" lv5 with Z parts and he liked it better than when he bought it. Held up to an Atomic 5K well enough on music (mechanically), and does high 48's to low 49's.

That all being said, if you don't have room for a larger box, just say so, because if youre breaking subs, you should lrn2 subsonic filter, or lrn2 recone with better parts. bigger box = louder all things equal.

http://i53.photobucket.com/albums/g69/hispls/2-12%20shocker%20builds/DSC02522.jpg

This box did 148.8 with 3 12's, 148.6 after I covered up the 3rd hole and just went with 2. Both @ 36-38hz IIRC. It would likely gain if I bothered to double-wall the sides. I think it flexes a good bit as/is

They don't break in spec boxes. Which is 1.5 cubes. That's why I ran DC from the beginning. I've never had a ton of space to give up. Getting the same thing in 3 cubes as 5 is a win.

NoLoud4U
08-19-2012, 05:29 PM
Dc subs, lots of power and low tuning = dead soft parts. You are going to have to sacrifice the lows on that power in a big box with those subs. Nice motors and cooling but, the soft parts will go down the drain...

It gets pretty **** low now and I don't have a big box.

NoLoud4U
08-19-2012, 05:30 PM
Did anybody see the small box with level 3s that gets loud? But level 3s **** and big boxes are better?

T.I.K.
08-19-2012, 05:32 PM
Are you paying for it? Im game if you are

Grow some nuts and make some money.

murph
08-19-2012, 05:33 PM
It gets pretty **** low now and I don't have a big box.

Tuning is low so ofc it gets low but, if you wanted more output and to be able to play even lower a bigger box would be needed. What do you really want though, to rip the lows or to hit the numbers?

hispls
08-19-2012, 05:36 PM
They don't break in spec boxes. Which is 1.5 cubes. That's why I ran DC from the beginning. I've never had a ton of space to give up. Getting the same thing in 3 cubes as 5 is a win.


Nought for nothing, but if you were getting results in the small box we wouldn't be having this thread.

T.I.K.
08-19-2012, 05:39 PM
Nought for nothing, but if you were getting results in the small box we wouldn't be having this thread.

Checkmate.

NoLoud4U
08-19-2012, 06:03 PM
Nought for nothing, but if you were getting results in the small box we wouldn't be having this thread.

For where its tuned the output is good. Im just trying to find that line, numbers/daily. I dont want to put up a good number and not move a lick of air. I dont want to play 25hz strong and only meter a 45. It would be great is I could do changable ports but I cant. My car peaks to high to put up a good number tuning low, I learnt that lesson. There has to be a more efficent way to get the best of both.

cyn
08-19-2012, 06:15 PM
reverse mount the subs on that octo box? would that not solve the issue of the motors hitting? if the motors hits the windows move them towards the front more.. problem solved...

NoLoud4U
08-19-2012, 06:24 PM
reverse mount the subs on that octo box? would that not solve the issue of the motors hitting? if the motors hits the windows move them towards the front more.. problem solved...

They will hit. They seem to want to be far back as they can get. Jaydubb and myself have figured something out. 6.75 inch octo will work, I can get the tuning to 36hz will a bit over 11sq per cube.

---------- Post added at 06:24 PM ---------- Previous post was at 06:24 PM ----------


Grow some nuts and make some money.

I make plenty. But got a daughter on the way and the wife is being a tight wad.

NoLoud4U
08-19-2012, 06:26 PM
Tuning is low so ofc it gets low but, if you wanted more output and to be able to play even lower a bigger box would be needed. What do you really want though, to rip the lows or to hit the numbers?

I want the best mix of both. Not move a ton of air like it does now and not sound like a wet fart with no force behind the hits.

CAT MAN
08-19-2012, 06:40 PM
so does that mean when i sacrificed airspace for port area on my 12s i got quieter? lol

Flastrongman
08-19-2012, 06:41 PM
Just throwing out the idea of stepping down to 10's if you want to stay with a small box. 147's should be pretty easy on a pair of decent 10's with half the power you have. There is a very different philosophy behind daily builds that meter good and spl builds that meter very good.

NoLoud4U
08-19-2012, 07:01 PM
Just throwing out the idea of stepping down to 10's if you want to stay with a small box. 147's should be pretty easy on a pair of decent 10's with half the power you have. There is a very different philosophy behind daily builds that meter good and spl builds that meter very good.

I can get more room. Up to 11 cubes. I just don't have the width to make 15s work. Everybody that knows DC subs knows to not go to much over specs. They can get just as loud as a big box sub without the big box. That's proven. I just have to find the efficient port and tuning that will give my ears what they are looking for and do a respectable number. I like what I hear now, it's nasty in the 30hz range. I know I'm going to lose some of that but I don't want to lose much of it. The 35hz box was fine, if the subs fired up on that one and it didn't flex like crazy it might of been ok.

murph
08-19-2012, 07:01 PM
4th, 6th order or a horn can get you the best of both worlds. You can still achieve the lows and push some air while hitting good numbers. The box size though is going to be the main issue.

NoLoud4U
08-19-2012, 07:04 PM
so does that mean when i sacrificed airspace for port area on my 12s i got quieter? lol

Did you get banned from the page last night? The post is gone

CAT MAN
08-19-2012, 07:04 PM
Did you get banned from the page last night? The post is gone

no just got deleted. but i would like an answer to the question. :p

NoLoud4U
08-19-2012, 07:07 PM
4th, 6th order or a horn can get you the best of both worlds. You can still achieve the lows and push some air while hitting good numbers. The box size though is going to be the main issue.

I might be able to do a 4th but if I'm going that far I'll just wall it. I'm going to try to wall it in 2014 after I get back from a 10 month deployment. A pair of level 5 18s on a 7500. Bigger alt and add a few 3100s.

---------- Post added at 07:07 PM ---------- Previous post was at 07:06 PM ----------


no just got deleted. but i would like an answer to the question. :p

What question?

CAT MAN
08-19-2012, 07:07 PM
this one


so does that mean when i sacrificed airspace for port area on my 12s i got quieter? lol

NoLoud4U
08-19-2012, 07:08 PM
this one


so does that mean when i sacrificed airspace for port area on my 12s i got quieter? lol

I don't know, did you? I don't know jack about AQ, DD, AB subs.

CAT MAN
08-19-2012, 07:10 PM
I don't know, did you? I don't know jack about AQ, DD, AB subs.

wont have the box til sat. wont be in til the next week. i shrunk it from 3.8 @ 36hz to 3.3@33-34. went from 16 sq inches per cube to 18.2 per. soo.... i could just reverse mount them. that would gimmie an extra .37

NoLoud4U
08-19-2012, 07:19 PM
wont have the box til sat. wont be in til the next week. i shrunk it from 3.8 @ 36hz to 3.3@33-34. went from 16 sq inches per cube to 18.2 per. soo.... i could just reverse mount them. that would gimmie an extra .37

Let us know how it works. I do know those subs like big boxes but put some power down and it should make up for it. If it don't work slap some DC goodness in there.

Flastrongman
08-19-2012, 07:39 PM
I can get more room. Up to 11 cubes. I just don't have the width to make 15s work. Everybody that knows DC subs knows to not go to much over specs. They can get just as loud as a big box sub without the big box. That's proven. I just have to find the efficient port and tuning that will give my ears what they are looking for and do a respectable number. I like what I hear now, it's nasty in the 30hz range. I know I'm going to lose some of that but I don't want to lose much of it. The 35hz box was fine, if the subs fired up on that one and it didn't flex like crazy it might of been ok.

I've seen great numbers from DC subs but I have not seen much in the way of efficiency. I'm sure there are builds out there but it seems that all the build logs I've seen are always throwing a butt load of power at them and only doing numbers I can do on half the power with cheaper subs.

kushy_dreams
08-19-2012, 08:07 PM
This ^^^

What about a pair of super beefy 10s in a 4th order?

Or even quad 10s like someone already mentioned and mount them inverted

btdickey99
08-19-2012, 08:19 PM
simple solution....

put TL mic in port... guaranteed over a 147

NoLoud4U
08-19-2012, 08:21 PM
I've seen great numbers from DC subs but I have not seen much in the way of efficiency. I'm sure there are builds out there but it seems that all the build logs I've seen are always throwing a butt load of power at them and only doing numbers I can do on half the power with cheaper subs.

I'm going to try this efficient octo port. If it don't work I'll change it up. I can't add anymore power right now. I do love the low end with these subs though. I don't think many can do what they do down low.

---------- Post added at 08:21 PM ---------- Previous post was at 08:20 PM ----------


simple solution....

put TL mic in port... guaranteed over a 147

It will do it in the kick but we don't do that here.

CAT MAN
08-19-2012, 08:22 PM
Let us know how it works. I do know those subs like big boxes but put some power down and it should make up for it. If it don't work slap some DC goodness in there.
even at team pricing i cant make myself buy them. too rich and not enough stuff for me. sorry. its the 3k ive had. i may just invert them like i said.

I'm going to try this efficient octo port. If it don't work I'll change it up. I can't add anymore power right now. I do love the low end with these subs though. I don't think many can do what they do down low.i bet i know a sub that could do better

---------- Post added at 08:21 PM ---------- Previous post was at 08:20 PM ----------



It will do it in the kick but we don't do that here.

btdickey99
08-19-2012, 08:24 PM
I'm going to try this efficient octo port. If it don't work I'll change it up. I can't add anymore power right now. I do love the low end with these subs though. I don't think many can do what they do down low.

---------- Post added at 08:21 PM ---------- Previous post was at 08:20 PM ----------



It will do it in the kick but we don't do that here.
it was a joke sir

NoLoud4U
08-19-2012, 08:26 PM
it was a joke sir

And I laughed.

Flastrongman
08-19-2012, 08:29 PM
I'm going to try this efficient octo port. If it don't work I'll change it up. I can't add anymore power right now. I do love the low end with these subs though. I don't think many can do what they do down low.

---------- Post added at 08:21 PM ---------- Previous post was at 08:20 PM ----------



It will do it in the kick but we don't do that here.

I'd really like to see some more numbers of setups that peak fairly low with DC subs. I had 2 12" type r's(older version) doing 147's@36hz. I also had 1 DD3512 that would do 147's @35hz.

kushy_dreams
08-19-2012, 08:31 PM
I'd really like to see some more numbers of setups that peak fairly low with DC subs. I had 2 12" type r's(older version) doing 147's@36hz. I also had 1 DD3512 that would do 147's @35hz.

Just out of curiosity, how much power was on that 3512?

Flastrongman
08-19-2012, 08:38 PM
that was on an audiopipe 3500 wired@1ohm, never measured rise.

mazdakid
08-19-2012, 08:47 PM
You have a scion tc strongman?

Flastrongman
08-19-2012, 08:51 PM
no that was in a 99 Jimmy

TaylorFade
08-19-2012, 11:49 PM
What the hell is the problem in here? You can't do 47 with 5k and a pair of XL's in a hatch?

Wow.

NoLoud4U
08-20-2012, 07:11 AM
What the hell is the problem in here? You can't do 47 with 5k and a pair of XL's in a hatch?

Wow.

What's your input master?

Joseph7195
08-20-2012, 07:46 AM
What the hell is the problem in here? You can't do 47 with 5k and a pair of XL's in a hatch?

Wow.
This is what I was thinking. I think @princ3mo ; has the same car and he should be able to help. I have seen a some pretty high numbers (over 150) in these types of cars on less than 3000 watts. I know one guy (can't remember his name) has been helping out with USACI competitions in the south, and he was running just one twelve in a hatch and was doing 150's.

Please don't get upset at what I am about to say, please please please. I would pass my designing off to a trained pro. There are variables you may not have thought of that can not only save space, but keep your tuning low, or increase your effective response curve and be a better number getter, and also a Daily ground pounder.

No matter what, I am in to learn something!! I hope you keep posting updates so we can all learn from your experiments!

NoLoud4U
08-20-2012, 09:18 AM
This is not a typical square back hatch. It's more like a trunk with the seat out.

RangerDangerV2
08-20-2012, 09:44 AM
make flat surfaces. it is not that hard. and seriously, with 5k a 147 should have come to you a while ago.

NoLoud4U
08-20-2012, 10:28 AM
make flat surfaces. it is not that hard. and seriously, with 5k a 147 should have come to you a while ago.

I would have 50s already if I tuned higher. I'm trying not to.

Flastrongman
08-20-2012, 10:35 AM
still easy to do with low tuning

RangerDangerV2
08-20-2012, 10:49 AM
I would have 50s already if I tuned higher. I'm trying not to.

then figure out what you really want. either go with a removeable port so you can have a daily/spl system or choose between the two.

NoLoud4U
08-20-2012, 10:57 AM
then figure out what you really want. either go with a removeable port so you can have a daily/spl system or choose between the two.

No ****. If I could do changeable ports I would have a long time ago. With this equipment I should have to sacrifice much SQ to put up decent numbers. I'm not going for a world title here.

---------- Post added at 10:57 AM ---------- Previous post was at 10:57 AM ----------


still easy to do with low tuning

How low is low to you?

hispls
08-20-2012, 11:23 AM
For where its tuned the output is good. Im just trying to find that line, numbers/daily. I dont want to put up a good number and not move a lick of air. I dont want to play 25hz strong and only meter a 45. It would be great is I could do changable ports but I cant. My car peaks to high to put up a good number tuning low, I learnt that lesson. There has to be a more efficent way to get the best of both.


A larger box. Just because DC softparts break prematurely doesn't mean they won't play lower louder in a large box.

There's no magic DC pixie dust that makes a large woofer not want a large box to perform properly, really for the most part there's nothing special about them over a dozen other comparable chinese built woofers.... if I'm wrong and there's reallly some unique technology used in them, I'm curious to learn about it.

It has all been said here, if you want numbers, tune higher, build a more efficient (bigger) box, or add more power, or add more cone area.

Flastrongman
08-20-2012, 11:24 AM
No ****. If I could do changeable ports I would have a long time ago. With this equipment I should have to sacrifice much SQ to put up decent numbers. I'm not going for a world title here.

---------- Post added at 10:57 AM ---------- Previous post was at 10:57 AM ----------




How low is low to you?

32hz tuning will still yield good numbers

NoLoud4U
08-20-2012, 11:29 AM
A larger box. Just because DC softparts break prematurely doesn't mean they won't play lower louder in a large box.

There's no magic DC pixie dust that makes a large woofer not want a large box to perform properly, really for the most part there's nothing special about them over a dozen other comparable chinese built woofers.... if I'm wrong and there's reallly some unique technology used in them, I'm curious to learn about it.

It has all been said here, if you want numbers, tune higher, build a more efficient (bigger) box, or add more power, or add more cone area.

So explain the octo ported box a few pages back putting up impressive numbers. It's a pretty small box.

pro-rabbit
08-20-2012, 11:32 AM
The octo port was first used in the Toby BP enclosures. It is simply another way of doing a "round" port. You gain more by doing a round port over the "octo port" setup.

hispls
08-20-2012, 11:43 AM
So explain the octo ported box a few pages back putting up impressive numbers. It's a pretty small box.

If you're that impressed with it, why this thread? Really I'm not saying there's anything wrong with 45's in the mid 30hz range, but if you want to see bigger numbers on the meter the answers are in this thread.


Let me ask you this, is your peak @ 35hz or 55-60hz? If it's 35, how close are you to x-max at full tilt? If you're not at full excursion a bigger box will help you improve your number at 35hz.

What does your response curve look like? Do you own a meter?

This is the classic "kicker reccomends 3 cube for a 15" square sub" thread, but for DC.

Your subs will sound louder and look more impressive on the meter if you build a bigger box and tune higher. 50$ worth of wood and glue to figure it out for yourself.

NoLoud4U
08-20-2012, 11:50 AM
If you're that impressed with it, why this thread? Really I'm not saying there's anything wrong with 45's in the mid 30hz range, but if you want to see bigger numbers on the meter the answers are in this thread.


Let me ask you this, is your peak @ 35hz or 55-60hz? If it's 35, how close are you to x-max at full tilt? If you're not at full excursion a bigger box will help you improve your number at 35hz.

What does your response curve look like? Do you own a meter?

This is the classic "kicker reccomends 3 cube for a 15" square sub" thread, but for DC.

Your subs will sound louder and look more impressive on the meter if you build a bigger box and tune higher. 50$ worth of wood and glue to figure it out for yourself.
That's not my box it's one I'm trying to copy. They are at full excursion around the peak yes. They look like they want to jump out the gap.

dbeez
08-20-2012, 06:24 PM
Can I have the car and equipment for a month and an undisclosed amount of money I am shooting for a 50 though.

NoLoud4U
08-20-2012, 08:11 PM
Can I have the car and equipment for a month and an undisclosed amount of money I am shooting for a 50 though.

I have a 10 month deployment coming up!
But seriously, this car has been a PIA. We are going to try and copy the octo box I posted a few pages ago. That one has a 7.5 inch port. I can only do a 6.75 and get daily tuning. I would be happy with a musical 148. 50 on a burp would be great. That guy did a 49 at the headrest with level 3s and AQ2200. I hope it works for me.

CAT MAN
08-20-2012, 08:13 PM
I have a 10 month deployment coming up!
But seriously, this car has been a PIA. We are going to try and copy the octo box I posted a few pages ago. That one has a 7.5 inch port. I can only do a 6.75 and get daily tuning. I would be happy with a musical 148. 50 on a burp would be great. That guy did a 49 at the headrest with level 3s and AQ2200. I hope it works for me.
if it doesnt i can be a bro and leave my car at your place and take yours home and get it loud. only money i would need is for wood.

NoLoud4U
08-20-2012, 08:17 PM
if it doesnt i can be a bro and leave my car at your place and take yours home and get it loud. only money i would need is for wood.

Thank hommie but I don't think that's needed. It has to work, if it needs higher tuning there is enough external to trim off to 40hz.

CAT MAN
08-20-2012, 08:18 PM
Thank hommie but I don't think that's needed. It has to work, if it needs higher tuning there is enough external to trim off to 40hz.

well if you are unsure about anything let me know. i just picked up another jigsaw and router. getting back into building.

dbeez
08-20-2012, 08:18 PM
best of luck seriously though i asm sure theres a musical 50 in there.

CAT MAN
08-20-2012, 08:20 PM
best of luck seriously though i asm sure theres a musical 50 in there.

there is but not sealed. 48 musical sealed i could get out of that with a weeks work. Derek have you thought that maybe. just maybe that 5k is getting eatin up by box rise?

dbeez
08-20-2012, 08:21 PM
there is but not sealed. 48 musical sealed i could get out of that with a weeks work. Derek have you thought that maybe. just maybe that 5k is getting eatin up by box rise?

its there

CAT MAN
08-20-2012, 08:22 PM
its there

i dont see a musical sealed 50 unless he switches subs IMO

NoLoud4U
08-20-2012, 08:24 PM
It is. Ohm and a half of rise on 60hz. Less in the 35-45 range.

---------- Post added at 08:24 PM ---------- Previous post was at 08:23 PM ----------


i dont see a musical sealed 50 unless he switches subs IMO

Tell that to Blake Hunt and Boyd

CAT MAN
08-20-2012, 08:25 PM
thats not bad. but at 60 hz its pointless.40hz is where i test

NoLoud4U
08-20-2012, 08:26 PM
thats not bad. but at 60 hz its pointless.40hz is where i test

40 was about 1 ohm. But it was still clamping almost rated.

dbeez
08-20-2012, 09:41 PM
What coil are your subs

murph
08-20-2012, 09:53 PM
Catman likes the ****:naughty:

NoLoud4U
08-21-2012, 08:55 AM
What coil are your subs

Dual 4. I cant wire down anymore. If I ever get recones I'll go dual .7

mazdakid
08-21-2012, 09:07 AM
You probably arent getting close to as much power as you think to your subs.

mazdakid
08-21-2012, 09:13 AM
5k i meant but im sure you already know that if you know your rise.

NoLoud4U
08-21-2012, 09:53 AM
5k i meant but im sure you already know that if you know your rise.

The box I'm using now has a ton of rise but it was designed as a daily box. It does its job well. I just want to find that fine line between good daily and good meter. I will more then likely use my current box daily unless the rebuild works really good.

dbeez
08-21-2012, 10:45 AM
If you dont get it be soon hit me up I would love to play with it while you're gone and get it where it should be.

audio_phill
08-21-2012, 02:20 PM
My Scion formed the most pressure @ 32-34hz open windows, 44Hz sealed. Had no problem putting up mid 40's @ 24Hz with a v2 hdc3-15a on an rd 3250, would do 148@34 and, anything above 44 was soaked up by its damping to much to put up good numbers. Bos was 4.5@30 with 56sq" of port, sub up (centered in air space) port rear on passenger side, mic'd in driver seat @ headrest.

Louisiana_CRX
08-21-2012, 02:35 PM
I'm about fed up trying to put up a decent number with daily tuning. Next idea since I can't fit 15s and a single 18 might not work.
Single 6 inch flared aero, tuned at 34, 17 inches total. Box will be 3.2 net after port subs and bracing. Subs up in the back corners, port firing out the back in the center about 8 inches from the back of the car.
Opinion? I'll post a pic of the current box in a minute. It's 3 cubes net tuned at 31hz. 54sq inches of port, 18 per cube. It did a 145 sealed up at 46hz.

All it takes is one good sub and one good amp :)

151.9 with 1 12" DDZ in a Saleen trunk! - YouTube (http://www.youtube.com/watch?v=Pw-ssu57Y7k)