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treylittlefield
06-27-2009, 10:50 PM
i kno this sounds stupid, but Fi's web site says to tune BTL's to 32hz. well someone said that if i do a blowthrough and the ports are far enough away from the cab wall then it would tune it lower or somethin like that...anyone have any idea bout this?? my subs will be angled and the ports in the middle

treylittlefield
06-28-2009, 10:45 AM
now i kno someone on here knows the answer...lol

treylittlefield
06-28-2009, 09:13 PM
please help a brother out ppl.. :)

KHARPS
06-29-2009, 10:28 PM
I remember reading something like that too. How far away is your port going to be from your cut? The box I'm building right now has the port 5'' away from the opening but I don't expect much of a drop in tuning. If it will drop at all I don't think it will be too much...at least it isn't going to raise tuning :)

treylittlefield
06-29-2009, 10:56 PM
I remember reading something like that too. How far away is your port going to be from your cut? The box I'm building right now has the port 5'' away from the opening but I don't expect much of a drop in tuning. If it will drop at all I don't think it will be too much...at least it isn't going to raise tuning :)

ummm idk i havent got my box yet. lol but u are right :) thats def a positive lol

treylittlefield
06-29-2009, 10:57 PM
btw KHARPS what u puttin in ur ranger now?? lol

KHARPS
06-29-2009, 10:58 PM
btw KHARPS what u puttin in ur ranger now?? lol

2-12'' DC LV4XLs and eventually an IA 40.1 or something similar.

treylittlefield
06-29-2009, 11:41 PM
i'm getttin a 4500D . . . :) i think u should too....lol **** bet that **** gonna be loud...send me a pm i wouldnt mind seein your box design

KHARPS
06-30-2009, 09:51 PM
i'm getttin a 4500D . . . :) i think u should too....lol **** bet that **** gonna be loud...send me a pm i wouldnt mind seein your box design

YGPM. I would but I definitely don't have over $1000 to spend on an amp that won't come out til August or October or whatever the ETA is.

kfx450r
06-30-2009, 09:54 PM
blowthru with 2 12s? Must be a single cab. Anyways. Ive heard that aswell..as to the specs of it. Id say if you cant get any solid info on it tune it slightly higher..as in if you want it 32 hz..tune it to 34..you wont notice the diff in the tuning anyways.

treylittlefield
07-01-2009, 12:25 AM
blowthru with 2 12s? Must be a single cab. Anyways. Ive heard that aswell..as to the specs of it. Id say if you cant get any solid info on it tune it slightly higher..as in if you want it 32 hz..tune it to 34..you wont notice the diff in the tuning anyways.


thanks..is there somethin wrong wit only 2 12's?? cause many ppl has asked this same question...lol

treylittlefield
07-01-2009, 12:26 AM
YGPM. I would but I definitely don't have over $1000 to spend on an amp that won't come out til August or October or whatever the ETA is.

well i got all the time in the world :) haha and actually they only $1000 before July. but beins that ends in bout 30 mins...lol

vellocet
07-01-2009, 12:28 AM
Most people put some ***** in with a blow through. Not required, just typical.

treylittlefield
07-01-2009, 06:29 PM
Most people put some ***** in with a blow through. Not required, just typical.

so 2 BTL's and a 4500D wouldnt be enough?? lol

jshak07
07-01-2009, 06:33 PM
What is your electrical going to look like?

galacticmonkey
07-01-2009, 06:37 PM
I think he means if most people are going to cut a massive hole in the body of their vehicle, they will load it up with some serious equipment.

Personally I would tune a little higher for daily if you want to do the higher bass notes too, probably 36-37hz. It wont really drop the tuning, but if the box is wayyy back there, it will definately play low because if the box is way deep in the bed, the low notes will have a good ways to develop a full wave on the lower notes as well.

treylittlefield
07-07-2009, 05:15 PM
What is your electrical going to look like?

well i have a 250 amp alternator and a HC1800 up front. 2/0 big 3. 2 runs of 2/0 to back. thats all i have at the moment. i need a dual alternator bracket and some more batts prob...

treylittlefield
07-07-2009, 05:15 PM
I think he means if most people are going to cut a massive hole in the body of their vehicle, they will load it up with some serious equipment.

Personally I would tune a little higher for daily if you want to do the higher bass notes too, probably 36-37hz. It wont really drop the tuning, but if the box is wayyy back there, it will definately play low because if the box is way deep in the bed, the low notes will have a good ways to develop a full wave on the lower notes as well.

so 2 btl's and 4500 watts isn't serious?? lol

KHARPS
07-07-2009, 06:56 PM
I think it is. I only went with 2-12s because I didn't want to use up all the bed space. You'll still be loud bro. And I'll do a new design for you soon...I'm kind of busy for the next few hours for my sister's bday.

TnT_Sounds
07-07-2009, 08:46 PM
The distance in space that there is doesn't do much of an audible differnce. Also I would personaly go with more power.

I had 6k on my 2 12" BTL's in a blow-through.

treylittlefield
07-09-2009, 01:04 AM
The distance in space that there is doesn't do much of an audible differnce. Also I would personaly go with more power.

I had 6k on my 2 12" BTL's in a blow-through.

well i also am usin this daily and dont want any chance of blowin em. all i have is one alt now and i'm tryin to find a bracket for another one

treylittlefield
07-09-2009, 01:05 AM
I think it is. I only went with 2-12s because I didn't want to use up all the bed space. You'll still be loud bro. And I'll do a new design for you soon...I'm kind of busy for the next few hours for my sister's bday.

no prob bro jsut shoot me a pm if u ever get the chance

treylittlefield
07-25-2009, 01:17 AM
The distance in space that there is doesn't do much of an audible differnce. Also I would personaly go with more power.

I had 6k on my 2 12" BTL's in a blow-through.

so 4500 wouldnt be enough??? lol

Mr. Slate
07-25-2009, 03:45 PM
Trey, usually if people do a blowthrough, they usually do more then 2 12s.

SWFL
07-25-2009, 04:11 PM
I am doing 4 15's on 4k for now bandpass 4th order

treylittlefield
07-26-2009, 12:03 AM
Trey, usually if people do a blowthrough, they usually do more then 2 12s.

i would seriously love to do like 6 12's but i think 2 btl's will be plenty. i mean i'm still in school and money is not the easiest thing to come by. lol yal makin it seem like it aint gonna be loud or somethin gah. lol

Canaan
07-26-2009, 12:09 AM
i kno this sounds stupid, but Fi's web site says to tune BTL's to 32hz. well someone said that if i do a blowthrough and the ports are far enough away from the cab wall then it would tune it lower or somethin like that...anyone have any idea bout this?? my subs will be angled and the ports in the middle

To a point...kinda.
But in reality, if the subs/port are back away from the cabin in a cut-thru and have a area between them, it will act like a 6th order bandpass to an extent.

SWFL
07-26-2009, 12:17 AM
whats the diff in bandpass vs ported as far as tunning

say a ported box at 33hz to play what that ported box plays at what would the bandpass 4th order be tuned to

then say a 4th order tuned to 45hz whats that compared to a box ported will play??

Thanks

dappa5
07-26-2009, 12:50 AM
try this spl http://www.diysubwoofers.org/bnd/4thord1.htm
with the sheer # of threads youve have started and posted in reguarding 4th orders I figured you'd be a real expert by now lol

SWFL
07-26-2009, 01:01 AM
hey, did you ever get a response from 80 or make up a design for me, also when could you do the cutout, are you busy everyday or what?

pm me if you want

Thanks

treylittlefield
07-31-2009, 12:40 AM
well thank you guys for your imput. yal have answered my question :) that it really wouldnt make that much of a difference