6 Pioneer TS-W305C's HELP

[LilTeddyP 0]

Ok, so I called Pioneer to check and see what they recommended for a square port and they told me 1.65 ft^3 per sub 7in^2 of port per sub 6" deep. Which seems SUPER tiny, but when my boy (BngBlzr) had 4 TS-W306DVC's in his blazer with the same specs, shit was loud. So I got the box all built, and I am NOT IMPRESSED. So what do you guys think for port, I don't want to rebuild the whole box, preferably just the front where the port is. The link is to my facebook photo album where pics of the box are. I am trying to locate my piece of paper with the dimensions written on it to throw that in here for you guys to play with too. LMK what you guys think cause from hearing his 4 to my 6, granted he was in a blazer and im in a tahoe, my first thought is WTF, I mean its loud, but pretty much only on a little range of notes.

For some background He was running 4 to the same specs on an old school rockford bd1500.1 (sharkfin) at 2 ohms, pretty much giving the subs all the amp had.

I am running 6 on a t4000.1bd. The subs are single 4's i have sets of 2 up to 8ohms then the three pairs wired down to 2.6 and the amp can only be turned up about 1/4 to 3/8 with no knob hooked up before sounding like they are going to die.

LMK what you guys think about my situation, I am trying to build this up to sell it and get a single BTL 18" to start with, until I can work my way in to 2.

Another option is if I can get this built and sounding right, then it will go in his blazer on his "new" old school rockford bd1500.1 (sharkfin) until he can get a new amp, unless it is plenty loud enough on that.

Thanks for the help

Ted

http://www.facebook.com/album.php?aid=132713&id=787806583&l=ed6868131c

[LilTeddyP 0]

Here are my ramblings for the box. Sorry if they don't make sense to you or if it is hard to follow, but its what I got.

I might have to rebuild the whole thing because I don't know how well it is going to some apart, it glued, screwed AND siliconed.

I also have the T/S and the Man for the subs if you want them, just post your e-mail add and I will send them, i dont see an attach button on this forum.

Thanks again for the help

1.65 ft^3 * 6 = 9.9ft^3

6 x Pioneer Ts-W305C's

Box .75" MDF

Ext. 21H x 38W x 26.5D = 10.297ft^3

____________________________________________

Port

7in^2 9" deep = 32Hz 7h*6w*9d

8.5*7.5*9 = 573.74 = .33 ft^3

____________________________________________

Bracing

1.5*1.5*19.5 (3)

43.879*3 = 131.625 = .076 ft^3

1.5*1.5*19.5 (3)

46.25*3 = 168.75 = .097ft^3

.173ft^3 (Bracing) + .33ft^3 (Port) = .503

.503 + 9.9 = 10.403

-10.297

= .106 Too Small

Edited August 11, 2009 by LilTeddyP

[kirill007 52]

Try doing 2 cu ft per sub, and around 26sq. inches of port per sub.

So you would need 12cu ft, and 156sq. inch of port area.(keep port are around 12-16sq inches per cu ft.)

Tune the port at 35hz, with 156 or 160sq.inch of port area.

Cause now it seems to be a small airspace for the sub, and nowhere near enough port area.

[KU40 173]

You also forgot to take out sub displacement. With 6 subs it's fairly significant, I'd say .5-.6 cubes total. So you have about a....we'll say 9.4 cube enclosure after all displacements. With what I understand to be an 8.5" wide by 7" tall by 9" deep port? If so you're tuned to about 33 hz. Which isn't a bad tune, but I imagine the subs are being squandered by the too-small box.

I modeled the subs up in winISD, and the frequency response graph is fairly terrible. It's flat above its rolloff, but it doesn't go below about 50 hz and it drops off pretty fast. So I imagine its lack of sub-50 hz output is where your disappointment lies.

Do you have pictures of the box and how it's oriented in the vehicle?

[LilTeddyP 0]

You also forgot to take out sub displacement. With 6 subs it's fairly significant, I'd say .5-.6 cubes total. So you have about a....we'll say 9.4 cube enclosure after all displacements. With what I understand to be an 8.5" wide by 7" tall by 9" deep port? If so you're tuned to about 33 hz. Which isn't a bad tune, but I imagine the subs are being squandered by the too-small box.

I modeled the subs up in winISD, and the frequency response graph is fairly terrible. It's flat above its rolloff, but it doesn't go below about 50 hz and it drops off pretty fast. So I imagine its lack of sub-50 hz output is where your disappointment lies.

Do you have pictures of the box and how it's oriented in the vehicle?

internal port is 6*7*9

and according to pioneer the box includes sub displacement so that is a non-issue

I had 4 on these sealed in a grand am and it was loud as hell so i dont get it

EDIT:

I can post pics tonight when i get out of work. I built the box to fit in a blazer so it is to the left of my cargo area with my battery next to it on the right and a rubbermaid tote shoved in between the box and the right side of my cargo area that i keep tools in. Dont have anywhere else to keep them at the time and the hours of my stoage unit suck, I cant wait until i get into this house!

EDIT 2:

When I used to rock pairs of these in prefabs they sounded amazing no matter what I played for what its worth

Edited August 11, 2009 by LilTeddyP

[sadistic 13]

ya if there at 1.65^3 the port in there is 6 inch long it's tuned 37.37 hertz i would go with the the bigger 2.00 ^3 per box tuned to about 33-34 hertz. to tune the box you got right now to 33.49 which is closer to 34 you need at least 8 inch long by 7 x1area per sub which is a 3 inch round tube. if you made 6 slots for 6 ports you will be fine. but if you add them together you got to change length for the extra area. it throws the formula's just use the length x width to get area and make the port a couple of inches longer to make up for it.

[sadistic 13]

You also forgot to take out sub displacement. With 6 subs it's fairly significant, I'd say .5-.6 cubes total. So you have about a....we'll say 9.4 cube enclosure after all displacements. With what I understand to be an 8.5" wide by 7" tall by 9" deep port? If so you're tuned to about 33 hz. Which isn't a bad tune, but I imagine the subs are being squandered by the too-small box.

I modeled the subs up in winISD, and the frequency response graph is fairly terrible. It's flat above its rolloff, but it doesn't go below about 50 hz and it drops off pretty fast. So I imagine its lack of sub-50 hz output is where your disappointment lies.

Do you have pictures of the box and how it's oriented in the vehicle?

internal port is 6*7*9

and according to pioneer the box includes sub displacement so that is a non-issue

I had 4 on these sealed in a grand am and it was loud as hell so i dont get it

EDIT:

I can post pics tonight when i get out of work. I built the box to fit in a blazer so it is to the left of my cargo area with my battery next to it on the right and a rubbermaid tote shoved in between the box and the right side of my cargo area that i keep tools in. Dont have anywhere else to keep them at the time and the hours of my stoage unit suck, I cant wait until i get into this house!

EDIT 2:

When I used to rock pairs of these in prefabs they sounded amazing no matter what I played for what its worth

i see you did what i thought. it 9 inch long right ?? if so it's tuned 25.53 hertz so if you make the port 5 inches long it will tune it to 34 hertz. you made it to long and it seem like it need more power to get loud then what it should be.i would just make it 5 inch long. by 6 x 7 area. this way it should lose the feel of more power needed to push them .

[LilTeddyP 0]

I guess I will pull a couple subs out tomorrow and trim down the port (and swap out one of the subs that I think is going bad) I download ExpoSports calc and realized an error in my ways and hopefully cutting down the port from 9 to 5 will take care of my issue. Thanks everyone for your input, i will post my results tomorrow, if i get my lazy ass up in time to do it before i go to work. If this doesnt take care of it, then back to lowes I go for a couple sheets of wood which i really DONT WANNA DO!

[LilTeddyP 0]

Problem solved, for the most part. Cut the port length down, and it was a NIGHT and DAY difference. It doesnt really seem a whole lot louder (although it is) but is covers everything from lows to highs now, just not certain shit like before. I can turn my amp up now too. After I get out of work I will go through and re-tune everything. Im gonna have to find a parking lot or something to do it in because my, fiance and my boy said my bitch ass neighbors called the cops after I left to go to work. I love how I can live in a house for 20 years and all the neighbors around don't care about the bass as long as its not all the time (tuning for a few mins if fine) and its before dark (completely understandable), but when a new set of neighbors move in they think they can change the way its been. Not even have the decency to say something to me, just call the cops, which the cops hate those calls anyway, its a waste of time. So I will go have a little chat with them when I get home and see if we can come to some sort of understanding.

Edited August 12, 2009 by LilTeddyP