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Ali1
06-19-2006, 04:34 PM
I want to know what my TCAB is tuned to. Can you guys help me out? thanks.

Outside dimensions : 26 x 14 x 29

Material Thickness is 3/4'' particle board

Box consists of : two 12'' Type Rs

Four 4'' ports with a length of 19'' long.


Information on the Type Rs
Vas 45L
Fs 29hz
Qts 0.47
Xmax 18.2mm

Johnny Drama
06-19-2006, 04:44 PM
4.87 cu.ft. without driver displacement
4 4" @19" = ~36hz

Ali1
06-19-2006, 05:07 PM
Is that confirmed? can you show me how you got that answer?

bimma85
06-19-2006, 05:09 PM
http://www.psp-inc.com/

Johnny Drama
06-19-2006, 05:10 PM
Outside dimensions : 26 x 14 x 29 wood=3/4"

cu.ft.= L*W*H/1728
inside 24.5*12.5*27.5/1728=4.8737702(4.87)
www.psp-inc.com (http://www.psp-inc.com)

MrSector9
06-19-2006, 05:10 PM
http://www.the12volt.com

Use the calculators there.

Johnny Drama
06-19-2006, 05:10 PM
http://www.psp-inc.com/

beat me to it :)

bimma85
06-19-2006, 05:10 PM
4.87 cubes interal, before subs and bracing and ports...if they are in they box...are they in or out of box? If out of the box, should be around 4.5 cubes net tuned to around 38

TypeRBass
06-19-2006, 05:11 PM
werd.

Johnny Drama
06-19-2006, 05:11 PM
http://www.the12volt.com

Use the calculators there.

doesnt account for the flares

Johnny Drama
06-19-2006, 05:12 PM
4.87 cubes interal, before subs and bracing and ports...if they are in they box...are they in or out of box? If out of the box, should be around 4.5 cubes net tuned to around 38

pretty sure that psp.com takes the port into consiteration in the box. Not sure though...

maldecido33
06-19-2006, 05:15 PM
yea, i'm gettin 36.1 Hz too.... box is 4.2 cubes with port and sub displacement.

Ali1
06-19-2006, 05:18 PM
subs and the ports are going inside the box

iceteebone
06-19-2006, 05:24 PM
subs and the ports are going inside the box


lol i hope so.

didn't tcab tell you or ask you what this box is suppose to be? :confused:

Ali1
06-19-2006, 05:28 PM
he said something about 5.5 cubes between 32-33hz. All i heard was 5.5 cubes and 32-33hz from him. But i wanted to make sure. All these equations are giving me a headache, so i decided to see if you guys can help me.

iceteebone
06-19-2006, 05:34 PM
he said something about 5.5 cubes between 32-33hz. All i heard was 5.5 cubes and 32-33hz from him. But i wanted to make sure. All these equations are giving me a headache, so i decided to see if you guys can help me.


well it sure isn't 5.5 cubes internal, and is about 6.1 external

Ali1
06-19-2006, 05:40 PM
So my box is tuned to ....

MrSector9
06-19-2006, 05:41 PM
36 like they already stated.

bimma85
06-19-2006, 05:57 PM
pretty sure that psp.com takes the port into consiteration in the box. Not sure though...
anyone sure on this? If you need to take out the subs/bracing/port then you're looking at 4 cubes net @ 40hz

Ali1
06-19-2006, 06:01 PM
36 like they already stated.


36hz before/after sub and port displacement?

Ali1
06-19-2006, 06:02 PM
anyone sure on this? If you need to take out the subs/bracing/port then you're looking at 4 cubes net @ 40hz


There is no bracing in the box. 40hz, thats pretty high, isn't it?

paulie
06-19-2006, 06:32 PM
40hz, thats pretty high, isn't it?

do you like how your subs sound in the box?

if so, it doesnt really matter what its tuned to, as long as you like it

Ali1
06-19-2006, 07:03 PM
do you like how your subs sound in the box?

if so, it doesnt really matter what its tuned to, as long as you like it


but i just wanted to know for myself what my own box is tuned to. Besides, if i plan on upgrading to a new setup, i can think about having a 40hz box or something lower. I wanted to get clarifcation on this and make sure my box is tuned correctly.

DBfan187
06-19-2006, 07:33 PM
false advertisment FTL!

snb778
06-19-2006, 07:52 PM
hey BIMMA, take me out of your profile, your ruining me

TooLowTooGo
06-19-2006, 07:52 PM
posting pics of the box would help some i guess... since there is no clue of what may take up an extra .2 or more. and if he used resin inside, depending on how much could reduce the boxs internal net (not a whole lot of course)

im getting 4.87 internal tuned to alittle over 36hz

bimma85
06-19-2006, 07:59 PM
hey BIMMA, take me out of your profile, your ruining me
My sig? You serious? If you're serious...I will, gotta admit its a great quote though :(

snb778
06-19-2006, 08:19 PM
you can keep it if you clear your stupid comment on tommyK and spkrman in your profile....i could see doing that for maybe a day or 2 to get a point across...but come on...

Skip01
06-19-2006, 09:45 PM
I thought TCAB were supposed to get real low.
36hz doesnt strike me as being able to hit low notes,maybe worng though.

Ali1
06-19-2006, 10:13 PM
many people are giving different answers. I asked a local shop, and they told me 41. But he didn't even do any measuring. He just looked at it and said looks about a 41-42. I just walked out.

saywhat?
06-19-2006, 10:18 PM
either way bro, its not what he said.

MrSector9
06-19-2006, 10:19 PM
HAHAHAAHAHAHAAHAHAHAAHAHAHAHAHA

nice shop

if it was 36.. wiht sub displacement it owudl be like 36.1 hz maybe

tommyk90
06-20-2006, 12:11 AM
The tuning is affected by the car too. :fyi:

Johnny Drama
06-20-2006, 09:57 AM
The tuning is affected by the car too. :fyi:

If anything the car will cause peaks, not smooth them out. So tuning at 36hz or 40hz whichever might just have a nice sharp peak. I dont know for sure though, I dont have his car or the TCAB.

MrSector9
06-20-2006, 10:05 AM
he asked what the bnox was tuned for, not the in car response.

also i never seen a highly tuned box be realtivly tuned any lower in the car.

B_Campbell
06-20-2006, 11:55 AM
do you like how your subs sound in the box?

if so, it doesnt really matter what its tuned to, as long as you like it
Yep

vetkilr
06-20-2006, 11:58 AM
amen

Meka
06-20-2006, 12:34 PM
I dont see the big deal if it sounds good.