Inverting Subs


90accordman

CarAudio.com Veteran
10+ year member
Dec 25, 2003
6,839
5
Fresno, CA
someone please help me with the meaning of this. My thoguht is that you invert them in order to have more box space. If this is true is there any reason why nobody seems to do this with Kicker square woofers.

I know the question sounds noob but i just was wondering what would it hurt if i tryed to invert my subs just to see if the extra space makes a diff.

 

JAZN

CarAudio.com Veteran
10+ year member
Sep 10, 2004
12,082
167
SoCAL
it has been done with kickers, but most people like the look of their cones. plus its not too hard to build a bigger box for more airspace.

 

Nikuk

Been Gone Too Long
10+ year member
Jul 13, 2004
8,002
0
Buffalo, NY
If You invert Your woofer, the cone will over heat because there is NO backpressure on the pole piece. either that or You could have check the 100's of old posts here that pop up when You type "invert" into the search engine.

-Nick

 

GCAdidas13

heh.
10+ year member
Nov 17, 2004
2,548
20
Grove City, OH
If You invert Your woofer, the cone will over heat because there is NO backpressure on the pole piece. either that or You could have check the 100's of old posts here that pop up when You type "invert" into the search engine.
-Nick
Whoa that's new to me. Someone else tell me that's valid/invalid?

 

vosschs

Banned
Oct 12, 2004
5,913
50
just east of STL
Whoa that's new to me. Someone else tell me that's valid/invalid?
hmm i dont think thats true, i had my old type r inverted for like 2 months and i never had a problem it was at like 800 wrms too, its 400 reccomended

 

jujumantb

Duke of Earl
10+ year member
Jun 17, 2004
3,517
36
Madison, Wi
If You invert Your woofer, the cone will over heat because there is NO backpressure on the pole piece. either that or You could have check the 100's of old posts here that pop up when You type "invert" into the search engine.
-Nick
If you're gonna do that, atleast throw a "jk" in there or something... people WILL take you seriously and end up spreading stupid stuff they've read... as a guy with a high post count, people will take you seriously with what you say.

 

AVSTANG02

Banned
May 3, 2005
4,173
7
Las Vegas
I have a lot of trunk lid rattle because my subs are firing directly at that area of the trunk.

If I invert the subs will the trunk still rattle the same no matter what way the cone is facing?

anyone tested this?

 

LightningStryk7

Senior VIP Member
10+ year member
Mar 28, 2005
281
0
Colorado
im pretty sure the rattle will be the same, because there is no diference in inverted or normal. You still get the same cone moving the same in and out.

 

BassAddictJ

CarAudio.com Veteran
10+ year member
Apr 10, 2005
13,568
23
FL
I have a lot of trunk lid rattle because my subs are firing directly at that area of the trunk.
If I invert the subs will the trunk still rattle the same no matter what way the cone is facing?

anyone tested this?
when u invert the su bs ur supposed to reverse the polarity of the sub OR if ur amp has a phase shift option use that.

as for the rattle, if the subs are facing and fireing towards the trunk then ur gonna get trunk rattle. to get more out of ur woofer and reduce trunk rattle u have to aim ur speakers forward, but the only trick is when you do that you have to create a baffle.

your best bet is to look up baffle and/or aiming subs forwards or something along the lines of haveing them fire towards the cabin to gather more details.

to sum that up what you need to do, if you have the sub fire towards the cabin you have to seal off the box to the trunk so that no air is able to move around the side/top/bottom of the box. essentially it's like makeing the front side of the box into a wall with a speaker fireing towards the cabin. you HAVE to do this in order to combat a cancelation of bass. if air can leak and move around to behind the box cancelation will occur. best cheap way to do this is build a box that will snuggly fit around thewalls of your trunk and use "great stuff" (sealent foam that hardens, like 4 bucks a big can at home depot or Lowes) to seal off the side......it all ride on the seal and the "wall" you create with the front of the box meeting the the rest of the car relativly perpendicular.

this is a creating a "baffle", also research about that on the forums (search botton IS VERY helpful.)

apparently you get better output fromt he woofer when you do this b ecause it save you the trouble of haveign the bass bounce off the trunk BACK into the cabin, this allows u to fire directly into the cabin.

correct me if i'm wrong guys.....

 

flakko

Veteran (my butt)
10+ year member
Aug 12, 2004
10,848
59
So Cal
when u invert the su bs ur supposed to reverse the polarity of the sub OR if ur amp has a phase shift option use that.
as for the rattle, if the subs are facing and fireing towards the trunk then ur gonna get trunk rattle. to get more out of ur woofer and reduce trunk rattle u have to aim ur speakers forward, but the only trick is when you do that you have to create a baffle.

your best bet is to look up baffle and/or aiming subs forwards or something along the lines of haveing them fire towards the cabin to gather more details.

to sum that up what you need to do, if you have the sub fire towards the cabin you have to seal off the box to the trunk so that no air is able to move around the side/top/bottom of the box. essentially it's like makeing the front side of the box into a wall with a speaker fireing towards the cabin. you HAVE to do this in order to combat a cancelation of bass. if air can leak and move around to behind the box cancelation will occur. best cheap way to do this is build a box that will snuggly fit around thewalls of your trunk and use "great stuff" (sealent foam that hardens, like 4 bucks a big can at home depot or Lowes) to seal off the side......it all ride on the seal and the "wall" you create with the front of the box meeting the the rest of the car relativly perpendicular.

this is a creating a "baffle", also research about that on the forums (search botton IS VERY helpful.)

apparently you get better output fromt he woofer when you do this b ecause it save you the trouble of haveign the bass bounce off the trunk BACK into the cabin, this allows u to fire directly into the cabin.

correct me if i'm wrong guys.....
your wrong!!!!! :p

 

Geezersoup

Member
10+ year member
May 24, 2005
46
0
New York
I don't know much on the subject, but I have five friends who have inverted subs without a problem, three of them with the subs in there for over a few years now.

 

Nikuk

Been Gone Too Long
10+ year member
Jul 13, 2004
8,002
0
Buffalo, NY
[NO]

Whoa that's new to me. Someone else tell me that's valid/invalid?
fa·ce·tious ( P ) Pronunciation Key (f-sshs)

adj. - Playfully jocular; humorous: facetious remarks.

There is no difference between inverting and 'regular' mount. Only the space gained by the vd of the driver.

Jeebus

 

req

am a mod.
10+ year member
Jul 14, 2004
16,175
36
Syracuse, NY
actually, the cone that connects to the voicecoil is not free anymore. that (depending on vc diamater) in^2 area where the former connects to the backside of the cone is not pushing air anymore. not a huge difference. but a difference. (most likely NOT audible in daily)

and that whole bit about aiming the subs forward to get 'the most' out of them - its utter cowpies. that is not true in any way shape or form. EVERY install is 100% its own beast and requires testing, otherwise- what worked for you - may have adverse effects for somone else //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

and inverting is usually for looks. i like the cone myself. but inverting is cool in certain applications - and sometimes, that .3 cubes is needed (wheelwell?) //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.


Users Who Are Viewing This Thread (Users: 0, Guests: 1)



Trending topics

Latest classifieds