Infinite baffle or L port?

1299 Views 41 Replies 8 Participants Last post by Novicaine, Feb 11, 2011

mattintc10

Discussion Starter · Feb 10, 2011

What are the pro's and con's of Infinite baffle and the pro's and con's of an L port. i was on the phone today with i believe matt from ID audio and he was useful but jeezus christ he can talk alot. but i learned some new things too with it.

1 - 20 of 42 Posts

Novicaine

· #2 · Feb 10, 2011 (Edited)

There a bit different. You can easily get more SPL with a ported box. IB will slam good on the lightest notes and sound goood and get low. I vote IB just because i like it so much, but it dosn't mean i compare it to a ported style.

You can setup IB subs for a very linear and flat response. The subs usually have low inductance, and they can still slam nicely and sound goood. Cone/excursion is great like PD said in your other thread.

mattintc10

Discussion Starter · #3 · Feb 10, 2011

Huricain3 said:
There a bit different. You can easily get more SPL with a ported box. IB will slam good on the lightest notes and sound goood. I vote IB just because i like it so much, but it dosn't mean i compare it to a ported style.

i want to try IB just for the fact its so cheap yet so effective

Novicaine

· #4 · Feb 10, 2011

mattintc10 said:
i want to try IB just for the fact its so cheap yet so effective

Go for it.

mattintc10

Discussion Starter · #5 · Feb 10, 2011

Huricain3 said:
Go for it.

i was shocked to hear that i do not have to be seriously anal about sealing up the trunk AND that i can port it. Do you by any chance know how to caculate a port for an IB enclosure?

Novicaine

· #6 · Feb 10, 2011

mattintc10 said:
i was shocked to hear that i do not have to be seriously anal about sealing up the trunk AND that i can port it. Do you by any chance know how to caculate a port for an IB enclosure?

Did kryptonite tell you that lol. I don't know about it, iv'e never tried or anything.

mattintc10

Discussion Starter · #7 · Feb 10, 2011

Huricain3 said:
Did kryptonite tell you that lol. I don't know about it, iv'e never tried or anything.

No kyptonite did not tell me that i think it was a guy by the name of dan from image dynamics.

Novicaine

· #8 · Feb 10, 2011

Oh that guy jk, i'm sure he knows his stuff. I am betting you want to tune loow.

LoudCavi

· #9 · Feb 10, 2011 (Edited)

can some1 show me what IB looks like

PureDynamics

· #10 · Feb 11, 2011

mattintc10 said:
No kyptonite did not tell me that i think it was a guy by the name of dan from image dynamics.

No you did not talk to me. I've been building and shipping orders all day.

PureDynamics

· #11 · Feb 11, 2011 (Edited)

mattintc10 said:
i was shocked to hear that i do not have to be seriously anal about sealing up the trunk AND that i can port it. Do you by any chance know how to caculate a port for an IB enclosure?

You don't have to be anal, but the better the seal the better off you are. Porting a IB, thats not a IB then. Just a large ported box. Something I wouldn't do. Either run ported or run IB.

Pros for Ported- Louder, handle more power, Can tune for your response

Cons- Heavy box, takes up more room (foot print), has more of a peaked response comparted to IB.

Pros for IB- Don't need alot of power, easy to build, super flat response, takes up less space (foot print).

Cons- Lower overall spl, lower power handling.

fritosaregood

· #12 · Feb 11, 2011

PureDynamics said:
You don't have to be anal, but the better the seal the better off you are. Porting a IB, thats not a IB then. Just a large ported box. Something I wouldn't do. Either run ported or run IB.

Pros for Ported- Louder, handle more power, Can tune for your response

Cons- Heavy box, takes up more room, has more of a peaked response comparted to IB.

Pros for IB- Don't need alot of power, easy to build, super flat response, takes up less space.

Cons- Lower overall spl, lower power handling.

you have those backwards. Ported boxes are smaller, IB takes up more room.

but yea, you cant port IB, its really just a box with at least 10x the reccomended seal size, you just want to separate the front and rear wave.

korey_hofer

· #13 · Feb 11, 2011

IB does take up less room, IB in a car is just a baffle using the trunk as an enclosure. in a house you have a much harder time doing that so you make an "infinite baffle" around the sub to trap the rear wave

Hertz5400LincolnLS

· #14 · Feb 11, 2011

fritosaregood said:
you have those backwards. Ported boxes are smaller, IB takes up more room.

but yea, you cant port IB, its really just a box with at least 10x the reccomended seal size, you just want to separate the front and rear wave.

How is a ported enclosure smaller than IB? There is no enclosure in IB, just a baffle separating the front and rear waves.

Hertz5400LincolnLS

· #15 · Feb 11, 2011

xander_crews said:
IB does take up less room, IB in a car is just a baffle using the trunk as an enclosure. in a house you have a much harder time doing that so you make an "infinite baffle" around the sub to trap the rear wave

HAHA you beat me to the punch!

korey_hofer

· #16 · Feb 11, 2011

Hertz5400LincolnLS said:
How is a ported enclosure smaller than IB? There is no enclosure in IB, just a baffle separating the front and rear waves.

a true infinite baffle is a huge sealed enclosure, in car audio it would take up way to much space so we do it a different way to separate the waves

Hertz5400LincolnLS

· #17 · Feb 11, 2011

xander_crews said:
a true infinite baffle is a huge sealed enclosure, in car audio it would take up way to much space so we do it a different way to separate the waves

I completely agree...it is difficult to achieve "true" IB in a car. Only thing that comes close is using an aperiodic membrane, but then it technically isn't IB anymore.

fritosaregood

· #18 · Feb 11, 2011

if you feel like putting things inside your IB setups "box" then its less room,
but if you have a tiny car and need 20 cubes to do a proper IB setup, its bigger when a ported box might only need 4 or 5 cubes

Hertz5400LincolnLS

· #19 · Feb 11, 2011

fritosaregood said:
if you feel like putting things inside your IB setups "box" then its less room,
but if you have a tiny car and need 20 cubes to do a proper IB setup, its bigger when a ported box might only need 4 or 5 cubes

IB is not a box, it is an alignment. I don't think I have ever seen an IB setup in a car that have 10x VAS in an IB setup. I can go back through magazines and dig up World Championship SQ installs using IB alignments and I guarantee none of them have 10x VAS.

I see what you are getting at, but you are arguing a moot point.

fritosaregood

· #20 · Feb 11, 2011

Hertz5400LincolnLS said:
IB is not a box, it is an alignment. I don't think I have ever seen an IB setup in a car that have 10x VAS in an IB setup. I can go back through magazines and dig up World Championship SQ installs using IB alignments and I guarantee none of them have 10x VAS.

I see what you are getting at, but you are arguing a moot point.

I know its not a box, but there is not infinite in a car so its pretty much a big sealed box.
but as long as we both get what each other is saying.

1 - 20 of 42 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.