Print Page | Close Window

Sub inverting

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=58362
Printed Date: March 29, 2024 at 8:16 AM


Topic: Sub inverting

Posted By: j68rh
Subject: Sub inverting
Date Posted: June 25, 2005 at 8:25 PM

I am not really sure of the answer, But I was just wondering why some people mount there subs inverted with the magnet out instead of in the box.  what are the advantages and disadvantages of doing that?



Replies:

Posted By: trojan
Date Posted: June 25, 2005 at 9:01 PM
I know most of the time it is to show off the magnet assembly. I would also like to know the goods and bads of this and does this take away from hittin DB's? And if so how much in general 1-3db per sub?




Posted By: oonikfraleyoo
Date Posted: June 25, 2005 at 11:26 PM
Most will agree that the only good is showing your chrome flames and there really isn't a bad. Some say to adjust to the enclosure accordingly (your adding air space by removing the speaker) others say it's too little of a change to make any difference, if its a sealed box I wouldn't worry about it at all. If one or more speakers is inverted and one or more not inverted then you should also adjust phase accordingly.

-------------
Nik
Jeeputer Progress
[|||||||||||-] 90%
Check it out.




Posted By: stevdart
Date Posted: June 25, 2005 at 11:41 PM

Inverted subs are not used in SQ systems.  So, that leaves SPL.  Therefore, the negative effect on db levels must be very slight, if it exists at all.

If someone were building a system for pure enjoyment of audio...and never mind wanting crowds gawking at the display in their trunk...they would never consider inverting subs.  But to answer the question more directly , one might invert subs to make better use of available space...besides the obvious and more common reason of showing off the sub's hind end.



-------------
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: audiobass10
Date Posted: June 26, 2005 at 12:12 AM
stevdart wrote:

Inverted subs are not used in SQ systems.  So, that leaves SPL.  Therefore, the negative effect on db levels must be very slight, if it exists at all.

If someone were building a system for pure enjoyment of audio...and never mind wanting crowds gawking at the display in their trunk...they would never consider inverting subs.  But to answer the question more directly , one might invert subs to make better use of available space...besides the obvious and more common reason of showing off the sub's hind end.


Exactly. There are NO disadvantages to inverting your subs. But it really could be helpful space wise for subs with larger displacement when room is needed.



-------------
Dave

Pioneer Premier DEH-P660
15" Kicker CVR
Profile AP1000M
It's Loud




Posted By: j68rh
Date Posted: June 26, 2005 at 1:08 AM
thanks for the info




Posted By: haemphyst
Date Posted: June 26, 2005 at 1:24 AM
stevdart wrote:

Inverted subs are not used in SQ systems.


Why not? There is no reaon why a properly designed woofer in a properly designed enclosure will sound ANY different than inverted than it would "regular"... the output will be identical either way, so if you design a SQ system it'll be SQ...

I think you generalize too much! posted_image

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: stevdart
Date Posted: June 26, 2005 at 8:22 AM

I wondered who was going to call me on it.  Did I need to wonder?  posted_image

To repeat my daughter's oft-said teenage line:  "But I'm just sayin' ! ..."



-------------
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: Steven Kephart
Date Posted: June 26, 2005 at 1:02 PM
stevdart wrote:

I wondered who was going to call me on it.  Did I need to wonder?  posted_image

To repeat my daughter's oft-said teenage line:  "But I'm just sayin' ! ..."


He just beat me to it.   I run my sub inverted because of  space issues.

Also keep in mind that running it inverted provides you with a free grill. posted_image

Steven Kephart

Adire Audio



-------------




Posted By: Poormanq45
Date Posted: June 26, 2005 at 7:03 PM
Steven: What do you mean you have space issues? Inverting the sub would end up taking up more space then buuiling the box slightly larger.

-------------




Posted By: trojan
Date Posted: June 26, 2005 at 8:09 PM
thx for the responses guyz. good stuff to know.




Posted By: j68rh
Date Posted: June 26, 2005 at 10:48 PM
Yeah I just learned something new thanks




Posted By: speedwayaudio1
Date Posted: June 26, 2005 at 11:41 PM
I run all 8-12's inverted. It looks cool, It makes it easyer to wire up the subs, as Steven said no grills to worry about. Does it sound any better? I don't know. Never had them install the regular way. The old planet audio 15's I used to run did sound better inverted. So I guess it would be a toss up. Sound is in the ear of the listener.

-------------
Big Dave




Posted By: -94-accordh22
Date Posted: September 28, 2005 at 11:42 PM
im not sure how old this post is but i was reading up for my new project.

i got 2 15" audiobahn with sick looking magnet and flame cone.

but i was wondering. if you dont have to compensate for the volume of the sub if its inverted can i just build the box to specs without sub in it?

i want to do a wedge style box (sub mounting surface on angle.) inverted.

or could i just build a box big enough to hold both of them and slap the subs in "inverted"

thanks





Print Page | Close Window