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18inch vs LAB vs 12pi
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dj-panoramix View Drop Down
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Points: 462 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dj-panoramix Quote  Post ReplyReply Direct Link To This Post Posted: 31 October 2009 at 4:46pm
in the labhorn and 12PI the driver are in parallel so i make the sim like that... Confused
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airbell View Drop Down
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Points: 287 		Post Options Post Options   Thanks (0) Thanks(0)   Quote airbell Quote  Post ReplyReply Direct Link To This Post Posted: 31 October 2009 at 4:49pm
thanks dj-panoramix for the usb graph!
just thought that the lab or 12pi may is not so fast and has some properties of a bandpass cause the chassis have a soft membran elasticity
and a weak motor-system....anyway
@bitzo: u get the push pull effect because there are several chambers were the chassis are mounted and one chassis there is a port at the front chamber of the chassis that turns into the horn, for the other chassis the port is positioned at the back chamber, that turns into the horn. so the distortion of the both membrans is invented and deletes each other while meeting at the beginning of the horn.
hope u can imagine cause may my description is not so wellGeek
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bitzo View Drop Down
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Points: 977 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bitzo Quote  Post ReplyReply Direct Link To This Post Posted: 31 October 2009 at 5:45pm
amazing cab! Now I get the plans from Wayne, kind person. Just study the plan :) thanks to all


Edited by bitzo - 31 October 2009 at 5:52pm
United Roots SoundSystem site
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dj-panoramix View Drop Down
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Points: 462 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dj-panoramix Quote  Post ReplyReply Direct Link To This Post Posted: 31 October 2009 at 6:30pm

yes really helpfull guy... ;)

i made a mistake on the last post, parallel vs serie sim, i edited my post now and have put the real one.
if you use the input parameter from wayne you have to change the driver parameter(because he allready put like 2 driver in parallel)and then you can look in driver arrangement for serie vs parallel.
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Ibex View Drop Down
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Originally posted by airbell airbell wrote:

just thought that the lab or 12pi may is not so fast and has some properties of a bandpass cause the chassis have a soft membran elasticity
and a weak motor-system....anyway


Siffness of the LAB12 cone is worse? ...says who?

Originally posted by 510 510 wrote:

if you want kick and a sub at the same time eawkf940 will do the trick 4u nicely 27hz - 200hz what more could you want the perfect box kf940


EAW KF940 Presets

...funny enough that they recommend a cut-off @ 100Hz Wink

Originally posted by Sheggy Sheggy wrote:

Do you know what drivers this cab uses Marjan?


Originally posted by MarjanM MarjanM wrote:

Eminence OEM


Originally posted by djstefanos djstefanos wrote:

Looks like a delta pro 12


Originally posted by MarjanM MarjanM wrote:

Ciare SW will kill in those boxes.


Originally posted by 510 510 wrote:

are you sbout the speakers cause eaw uses rcf and 18sound, these are the 2 speakers i know about that eaw uses i have a freind that has 20 bh940 in florida those are loaded from the factory with rcf 12 inch


...Eminence, Ciare, RCF, 18Sound!? What else? Seems that EAW put in what they can get!

Originally posted by 510 510 wrote:

tda i built the 12 sub that the plans are on the web sounds good used 18 sound speaker


...mine are loaded with Omega Pro-12, Definimax 4012HO would work as well.

Ermm sorry airbell to wander from the subject, the LAB12 might not be the one with the highest BxL and might not have the stiffest cone (Ciare SW12.00 would be the answer) although the LAB Sub is designed around the LAB12, or the other way round Wacko

Would two 12" with a BxL of 17.9 T/m (each) be as fast as one 18" with a BxL of 35.8 T/m?
Would this thesis be permissible?
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airbell View Drop Down
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Points: 287 		Post Options Post Options   Thanks (0) Thanks(0)   Quote airbell Quote  Post ReplyReply Direct Link To This Post Posted: 02 November 2009 at 8:04pm
i think u have to consider about the cone and voice coil mass too...its double too.
so yeah u have the 35.8 BL i think but also double mms...
im not sure if the bl factor contains the mms or not. i think that not.
and if its true that would mean that a chassis with a very powerful motorsystem
and a very high mms
is as well as one with a not to powerful motorsystem and a lower mms...
but maybe its wrong...?Confused

u can see that it has a siffness cone at the very high qms!
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Ibex View Drop Down
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siffness of the cone or of the suspension?

I think you are right, that you have to double the Mms as well, seems to be very logical!
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airbell View Drop Down
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Points: 287 		Post Options Post Options   Thanks (0) Thanks(0)   Quote airbell Quote  Post ReplyReply Direct Link To This Post Posted: 03 November 2009 at 12:50am
weak suspension, im sryEmbarrassed
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airbell View Drop Down
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Points: 287 		Post Options Post Options   Thanks (0) Thanks(0)   Quote airbell Quote  Post ReplyReply Direct Link To This Post Posted: 07 January 2010 at 1:22pm

So, did anybody ever hear both systems, LAB and 18inch Sub Horns like MSE-118 or Bassmaxx B Zero, in comparison to give an opinion about???

And second question, would it be better to go with 3 12pi subs or 4 LABs???
 
thx
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mykey- View Drop Down
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Originally posted by dj-panoramix dj-panoramix wrote:

parallel, here is parallel vs series:

parallel and series would be identical, the same outcome. You forgot to 'up' the impedance for the series, 3.59v, and you use 1.8v (3.23 ohm) for parallel
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remountier View Drop Down
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[OFF]Hi Ibex! how are you doing overlay graphs in akabak?[OFF]
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Ibex View Drop Down
Young Croc
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Originally posted by remountier remountier wrote:

[OFF]Hi Ibex! how are you doing overlay graphs in akabak?[OFF]


Just fine, thanks!

...simply drag&drop
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