PDA

View Full Version : I wanna be felt.....



Corsica
10-19-2002, 05:25 PM
Okay I don't really care if i can maek this heard 1/2 mile away, i wanna be felt. With the exception of bandpass, how can I make 2 12" subs hit their hardest, besides using bigger amps?? Is there a really good tuning or anything u guys can suggest??

J

MikeofTulsa
10-19-2002, 05:35 PM
Originally posted by Corsica
Okay I don't really care if i can maek this heard 1/2 mile away, i wanna be felt. With the exception of bandpass, how can I make 2 12" subs hit their hardest, besides using bigger amps?? Is there a really good tuning or anything u guys can suggest??

J

port the suckers

chris229
10-20-2002, 02:17 AM
Originally posted by Goddyd4me
port the suckers yup--------

bass_master
10-21-2002, 05:50 AM
porting is the way to go mate:)

Corsica
10-21-2002, 12:10 PM
Already running a ported box for now. Going to go an all new route for a new truck, here soon. Hopefully it will work just fine, but who knows....... I have desided thouhg if i get tha Jimmy, I am going to go Orions for subs (yes Alaxan u made me do it!!!) eclipse for fronts and a 100% custom back component sustem. Everything but the amps comps, and maybe the Orions (both for now) will be new. Hopefully all goes well.

J

Trixter
10-22-2002, 11:38 PM
Try a passive. Remember I talked about this befor? I have been using this method for about 4 years a it seems to work great.

papabaer
10-23-2002, 12:49 AM
TRY ISOBARIC COMPOUND LOUDING YOUR 12'S. I CAN DIRECT YOU TO THE PERFECT BOX IF YOU INTERESTED.

mattj
10-23-2002, 04:05 AM
tune them bad oscars at 30hz and youll have the cops on you for noise polution.

Corsica
10-23-2002, 02:49 PM
Originally posted by Trixter
Try a passive. Remember I talked about this befor? I have been using this method for about 4 years a it seems to work great.


yea i remember u mentioning it. Got any pix of how they look internally, externally, etcx?

J

Trixter
10-24-2002, 12:18 PM
I have done it a few ways. The only pic I have is that one in my pic gallery. It does not show the passive but it faces the back seat, if you can imagine that. (If you fliped the seat down it would be right there.) I also have designed a box for my old Malibu. It had 3 12"s across the front and the passive facing the rear. In my old Cavalier I made a box with 2 12"s on each side and one of them was the passive.

What I did was make the box to spec for the drivers you are using (ie. 2 12" @ 1.5cu' ea.= 3 cu' box) But rather than 2 subs you make enough room to put in 3 and only hook up to two drivers. I like to make the largest box I can. A little poly fill, and your there!

(Just make sure that the passive can handle the power of you drivers or else you'll destroy it. And also remove the VC and replace the dust cap.)

Slaymon
10-26-2002, 10:51 PM
How exactly does teh passive work? I see how you would hook up it up and everything. But how doesit make it louder or whatever? I'm still thinkin about my HE2's and doin that. I've got 3 and gettin a JBL 1200.1 here soon. Im gonna probly make a big 5 cubic inch box maybe bigger. I've got plenty of room. Does the passive lower the ohm load? What kind of sub could i take a part and handle 300 watts? If theres no voice coils why would it matter how much power it could handle? Im full of questions but i gotta get goin.

Trixter
10-27-2002, 11:08 AM
The passive is just a blown speaker I use. ( You can also buy them.) IT IS NOT HOOKED UP. You remove the VC to prevent any poping or scraping sound it may cause. (Like when you over excursion a sub...that sound.) Also snip off the tinsel leads. This will prevent you from possibly hearing them slap the back of the cone. The reason you need it to handle about the same power is because you don't want to crank it up and just blow the cone out from the surround.

The passive is moving strictly on the back pressure from the other subs. It's like running a sub for free. Think of it as a port when your building. It will not effct the ohms or power handeling or anything like that. The freq. response is still reling on the construction of the box and the other subs.

Corsica
10-29-2002, 01:29 AM
Sounds like a good idea. I may try this with my next setup.


J

Trixter
10-29-2002, 11:23 AM
I don't know anyone that uses a passive in the car audio world. The guy that learned me about it did professional sound and light for concerts and he used them all the time.

I like the way it sounds in my car.

Let me know how it turns out and what you think.

chris229
10-29-2002, 03:09 PM
guys---------passives and ports are the same thing--------hormoltz resonator[spelling]

Mr. Loki
11-01-2002, 03:43 PM
Just a thought for great sound.....you could build a 2.5 cubic feet sealed enclosure with the push/pull theory.........Face one sub into the box and one facing outward..........

Good luck whateva path you choose

nak
11-03-2002, 11:55 PM
I have found that subs crossed over at 30 is the way I like them too.
but I have found that running the subs (sealed) down , into a slot, side firing, or rear in some cases, seperated down the middle, my spl15's did 151 dBs with only 640 total watts to them, 320 each, n low end?, many complaints here and tickets.....shhhhhhhhh lol, im the guy who will find rattles in your ride, I'd hate to be infront of me =p lmao, now im going big, kuz i hate going home, so SPL170's have a goodowner now , n hope to see u'all @ a competition near me

Trixter
11-04-2002, 11:29 AM
Originally posted by nak
I have found that subs crossed over at 30 is the way I like them too.
but I have found that running the subs (sealed) down , into a slot, side firing, or rear in some cases, seperated down the middle, my spl15's did 151 dBs with only 640 total watts to them, 320 each, n low end?, many complaints here and tickets.....shhhhhhhhh lol, im the guy who will find rattles in your ride, I'd hate to be infront of me =p lmao, now im going big, kuz i hate going home, so SPL170's have a goodowner now , n hope to see u'all @ a competition near me

Nice.

Corsica
11-04-2002, 03:10 PM
Well it will happen eventually but not right now.

J