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I just got 2 12" type Rs...

 

Silver Member
Username: Timothy_314

Post Number: 305
Registered: May-06
i just got 2 type Rs for $300 Aight i need some help on a Box now. I would like them to hit like a L7 but still have alot of SQ so i guess i want SQL and i have a Caddilac so i have just about all the room i need in the trunk thanks :]
 

Gold Member
Username: Stnorris

RE SX 15, IA US

Post Number: 2186
Registered: Apr-06
2 cuft net per sub @ 35 - 38hz with a good sized port....then put around 1000 - 2000rms on them things and theyll be bangin
 

Silver Member
Username: Timothy_314

Post Number: 306
Registered: May-06
that helps a lil, but im really new to car audio and makin boxes,
 

Silver Member
Username: Timothy_314

Post Number: 308
Registered: May-06
i cant find anywhere where i can find the plans for the box :-/
 

Gold Member
Username: 420alldaylong

Post Number: 2193
Registered: Sep-06
http://www.subwoofertools.com/forum/ported-box.asp
 

Silver Member
Username: Timothy_314

Post Number: 309
Registered: May-06
Does anyone on here have a design already for them subs?
 

Silver Member
Username: Yukhui

Myrtle Beach, South Carolina USA

Post Number: 490
Registered: Jan-06
$300?? Damnn I got 5 for $200
Upload
 

Silver Member
Username: Dakangofkrunk16

Post Number: 705
Registered: May-07
Colby would u sell one of them, and how much...

Since my mom is broke and job less.. i'm helping with mortgage and food and all, but i want some thump, so Fi's on hold 4 now
 

Silver Member
Username: Theweasel

Steamboat springs, Colorado U.S. of A

Post Number: 847
Registered: Mar-06
this should work

http://www.subwoofertools.com/forum/ported-box.asp?Ew=32&Eh=16.5&Dia=6&Xmax=22&V d=.14&NumW=2&Vb=4.2&Fb=36&Qts=&Vas=&Fs=&CE=0
 

Gold Member
Username: Oglejust

Post Number: 2223
Registered: Aug-06
tim r u wanting some1 to build u a box or just design it? if ur looking for some1 to build it i can do it. aim = oglejust16 msn = justinogle@hotmail.com <<< also my email
 

Silver Member
Username: Spivey17323

Dunellen, New jersey United states

Post Number: 192
Registered: Jun-07
colby... those type r's look like knock offs. no wonder u paid 200 for 5.
 

Gold Member
Username: Tremor1127

Team Fi Car Audio [:-]

Post Number: 1860
Registered: Aug-06
not knock offs, they are just the old sucky ones...
 

Silver Member
Username: Spivey17323

Dunellen, New jersey United states

Post Number: 193
Registered: Jun-07
ooooo. yea i was wondering cause they look nothing like mine and 200 for 5 is extremely cheap. i bought 2 type r 1042d's for like 220 total.
 

Silver Member
Username: Timothy_314

Post Number: 310
Registered: May-06
well i just got a box off some one and the size of it is, And does anyone know whats this is tuned to? Thanks.

Tall: 17" 3/4
Wide: 33"
Deep 22"

Port Deep: 11" 1/4
Port Wide 2"
 

Silver Member
Username: Yukhui

Myrtle Beach, South Carolina USA

Post Number: 500
Registered: Jan-06
Yes, they are the older model. Sucky? hell nah!
 

Gold Member
Username: Logan__tille

I make it rain.

Post Number: 8453
Registered: Feb-06
Type R's FTMFW!!!!!!!!!!!!!1
 

Gold Member
Username: Extrmndor3

IF U HEAR ME... crazydbs.com

Post Number: 5872
Registered: Feb-06
logan go to the game everyone is playing and we are growing strong :-) we need to level up help us :-)
 

Silver Member
Username: Timothy_314

Post Number: 311
Registered: May-06
can some one tell me what the size of this box is and what its tuned to thanks.
Upload
 

Gold Member
Username: Insearchofbass

Post Number: 5562
Registered: Jun-04
5.79 cubic feet without the ports and subs assuming those are external measurements
 

Gold Member
Username: Insearchofbass

Post Number: 5563
Registered: Jun-04
and divider
 

Gold Member
Username: Insearchofbass

Post Number: 5564
Registered: Jun-04
minus .1379 for the divider
minus .0756 for port 1
minus .0756 for port 2
= 5.5009 cubic feet net without the sub
port tune coming up
 

Gold Member
Username: Insearchofbass

Post Number: 5565
Registered: Jun-04
46.95 hz port tune without subs
 

Gold Member
Username: Insearchofbass

Post Number: 5567
Registered: Jun-04
opps didnt see the 17.75 tall only did 17 tall
 

Gold Member
Username: Insearchofbass

Post Number: 5568
Registered: Jun-04
There this is right

6.07 cubic feet without ports or subs
minus .1445 for divider
minus .07934 for port 1
minus .07934 for port 2
= 5.766 cubic feet net without sub
41.5 hz port tune
 

Gold Member
Username: Insearchofbass

Post Number: 5569
Registered: Jun-04
crap i messed up again need to give my brain a break
 

Gold Member
Username: Insearchofbass

Post Number: 5570
Registered: Jun-04
There this is right ...I corrected it

6.07 cubic feet without ports or subs
minus .1445 for divider
minus .07934 for port 1 port wall minus .2001 for the port internal
minus .07934 for port 2 port wall minus .2001 for the port internal
= 5.3662 cubic feet net without sub
43.02 hz port tune
 

Silver Member
Username: Timothy_314

Post Number: 312
Registered: May-06
hmm... do you think i could add or do some thing to it that would make the tuning like 38 or a lil lower?
do you think that box will do fine with the type ares i got?
 

Gold Member
Username: Insearchofbass

Post Number: 5578
Registered: Jun-04
lemme calculate for you...ill be a few minutes
 

Gold Member
Username: Insearchofbass

Post Number: 5579
Registered: Jun-04
the above tuning was wrong I forgot you had a higher port than 17 inches your at like a 44 hz port tune....ill see what I can come up with brb
 

Gold Member
Username: Insearchofbass

Post Number: 5581
Registered: Jun-04
the above tuning was wrong I forgot you had a higher port your at like a 44 hz port tune....ill see what I can come up with brb
 

Gold Member
Username: Insearchofbass

Post Number: 5582
Registered: Jun-04
.1322 for port wall #1
.1322 for port wall #2
.3967 for port #1 internal
.3967 for port #2 internal
4.30 cubic feet net without sub and batting (which increases volume of space sub sees lowering port tune also)

20.25 long port length including the front wall 2.25 wide 16.25 high internal 38.3 hz tune with two pounds of poly batting is the best I can come up with right now but youll be better off going longer on the port but youll lose room in the box ...a 36 hz tune would be ideal....my brain is spent for the day maybe someone else can help

heres the program I used
http://www.carstereo.com/help2/Articles.cfm?id=31
 

Gold Member
Username: Insearchofbass

Post Number: 5583
Registered: Jun-04
scratch what I wrote i messed up you might be ok now brb
 

Gold Member
Username: Insearchofbass

Post Number: 5584
Registered: Jun-04
.1375 for port wall #1
.13.75 for port wall #2
.3667 for port #1 internal
.3667 forport #2 internal
5.06 cubic feet net without subwoofer
youll be at a 35 to 36 hz tune with 2 pounds poly batting 38.43 hz without it
20.25 inch long port including front wall of .75 inches 16.25 high internal by 2.25 inches wide internal
 

Gold Member
Username: Insearchofbass

Post Number: 5585
Registered: Jun-04
up above is correct and a final lol
 

Gold Member
Username: Insearchofbass

Post Number: 5586
Registered: Jun-04
poly batting was 2 pounds for each chamber.....its poly in sheet form
 

Gold Member
Username: Insearchofbass

Post Number: 5587
Registered: Jun-04
your gonna have 2.50 inches of clearance from the back wall so your stuck dont use poly batting
 

Gold Member
Username: Insearchofbass

Post Number: 5588
Registered: Jun-04
add 2 inches to your box depth and youll be at a 35 to 36 hz port tune
 

Gold Member
Username: Insearchofbass

Post Number: 5589
Registered: Jun-04
i messed up again lol....i forgot to subtract the center divider brb with the correction
 

Gold Member
Username: Insearchofbass

Post Number: 5590
Registered: Jun-04
This is definately correct

6.07259 cubic feet without subtracting ports divider or subwoofer

.1551 for center divider
.1375 for port wall #1
.1375 for port wall #2
.3667 for port #1 internal
.3667 forport #2 internal
4.90909 cubic feet net without subwoofer
.59244 cubic feet added if the box is made 2 inches deeper
5.50153 net cubic feet without subwoofer aprox. .14 off for both subwoofers displacement
5.36153 cubic feet net
37.34 hz port tune with a total of 20.25 inch long ports .75 front board thickness included (19.50 deep before that is added in)

20.25 inch long port including front wall of .75 inches 16.25 high internal by 2.25 inches wide internal
 

Gold Member
Username: Insearchofbass

Post Number: 5591
Registered: Jun-04
"20.25 inch long port including front wall of .75 inches 16.25 high internal by 2.25 inches wide internal"

should read .... 20.25 inch long (ports) including front wall of .75 inches 16.25 high internal by 2.25 inches wide internal
 

Gold Member
Username: Insearchofbass

Post Number: 5592
Registered: Jun-04
your fine for the 2000 watts rms should you choose to use that much power ...port volocity wise...meaning 73.125 square inches of port area will give great air flow
 

Gold Member
Username: Insearchofbass

Post Number: 5594
Registered: Jun-04
dont forget to add 2 inches to your depth....from 22 inches to 24 inches
 

Gold Member
Username: Insearchofbass

Post Number: 5595
Registered: Jun-04
and .25 to your port width from 2.00 inches to 2.25 inches
 

Silver Member
Username: Timothy_314

Post Number: 313
Registered: May-06
thanks for all that help but im kinda cunfused now...lol :-/ i might just do this box like what some one showed me
http://www.subwoofertools.com/forum/ported-box.asp?Ew=32&Eh=16.5&Dia=6&Xmax=22&V d=.14&NumW=2&Vb=4.2&Fb=36&Qts=&Vas=&Fs=&CE=0

If my box is Tuned to 40 Hz will it be ok to put the sub sonic filter to 30 Hz cause it sounds better the lower you put it? and what should i put my low pass filter at? because its louder the higher i put it
 

Gold Member
Username: Insearchofbass

Post Number: 5613
Registered: Jun-04
Hope this clears it all up

ok first heres what you gave 33 wide by 22 deep by 17.75 high I took those to mean measurements on the outside of the box then I changed your box demensions externally to 33 wide by 24 deep by 17.75 high so if use the measurements inside the box you would get 5.36153 cubic feet net and net means actual useable space after all wood and speakers are placed inside the box then instead of a 2 inch wide port I changed it to 2.25 inches wide by 16.25 inches high for proper port function airflow wise then that changed your port lengths (both of them) to 20.5 inches deep and gave you a port tune of 37.34 hz

so heres how you build it

33 inches wide (external measurements) by 24 inches deep (external measurements0 by 17.75 high (external measurements)

then add the ports like in your drawing but change the scetch to 2.25 inches wide each port and make the height the same as your scetch but to make the port change your scetch from 11.25 inches total length to 20.5 inches total length

as far as a box tuned to 40 hz they will sound like crap music wise dont do it....and if your box sounds better with the subsonic set lower than 39 hz on a 40 hz port tune then you probably dont have a 40hz port tune.....and by the way playing lower than your port tune can damage your subwoofer
 

Silver Member
Username: Timothy_314

Post Number: 314
Registered: May-06
my scetch is a box i got from a friend, will you think that 2.25" will be good SQL for them subs? i really don't like the sound of the box i got now i just want some thing that hits hard and has good SQ and that will be pretty low hitin bass cause im not really likin this 40 hz right now... :-\ do you think them plans from that web site i showed above will be what i want?
and thank you for helpin me, Your the only one lol :-]
 

Gold Member
Username: Insearchofbass

Post Number: 5671
Registered: Jun-04
make a box the way I told you is all i can say....i didnt realize that box was already built.....making your port wider will raise the tune if thats all you do to the prebuilt box
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