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Stereo Integrity 24" subwoofer - not kidding! - Page 8

post #211 of 522
"We must send one of these 24's to Josh Ricci."

based on the specs that are on the website, looks like a pretty stiff suspension for an i.b. sub. are these targeted more toward car audio guys?

to overcome the stiff suspension, i assume lots of coil layers were used to get bl up. that in turn pushed inductance way up. i'm kind of expecting a fairly peaky response with a fairly rapid rolloff in upper end sensitivity and sound quality, but who knows...
post #212 of 522
Quote:
Originally Posted by LTD02 View Post

"We must send one of these 24's to Josh Ricci."

based on the specs that are on the website, looks like a pretty stiff suspension for an i.b. sub. are these targeted more toward car audio guys?

to overcome the stiff suspension, i assume lots of coil layers were used to get bl up. that in turn pushed inductance way up. i'm kind of expecting a fairly peaky response with a fairly rapid rolloff in upper end sensitivity and sound quality, but who knows...

No the IB sub is not targeted towards "car audio guys" but rather IB alignments. A Qts of 0.7 is what you want in an IB alignment to mimic a sealed box response of a Qtc of 0.707.. We did not use an eight or twelve layer coil so it was not the reason for the "way up" inductance. The parameters were taken from our first prototype driver that has a very long coil in it. The driver in the video uses a slightly shorter coil with a lower Qts of 0.53 with an Le that is a touch lower than Re (much better ratio). We are still in the process of testing the prototypes that we have and we figured that you guys would like to see the data. Maybe we should have kept all of this quiet.
post #213 of 522
"No the IB sub is not targeted towards "car audio guys" but rather IB alignments."

the reason that i ask is the compliance looks pretty low relative to all other home audio i.b. drivers. like i mentioned to mk a few posts back, it doesn't really matter where the "springiness" is coming from, be it from the suspension or from the air behind the driver, that "springiness" is what is typically targeted for elimination with i.b. drivers/implementations. as a result, putting a relatively tight suspension on an i.b. baffle driver kind of defeats a large part of the purpose of i.b. drivers. just say'n...it is a prototype driver. i thought all comments were welcome. maybe i should have just kept quiet.
post #214 of 522
Quote:
Originally Posted by Electrodynamic View Post

No the IB sub is not targeted towards "car audio guys" but rather IB alignments. A Qts of 0.7 is what you want in an IB alignment to mimic a sealed box response of a Qtc of 0.707.. We did not use an eight or twelve layer coil so it was not the reason for the "way up" inductance. The parameters were taken from our first prototype driver that has a very long coil in it. The driver in the video uses a slightly shorter coil with a lower Qts of 0.53 with an Le that is a touch lower than Re (much better ratio). We are still in the process of testing the prototypes that we have and we figured that you guys would like to see the data. Maybe we should have kept all of this quiet.

In all honesty, you should have not posted T/S specs until it was the final product. Prototype numbers are never the same as the final version, no reason to even put them up until it's completely done. Pics and video's would have sufficed IMO to get everyones interest.
post #215 of 522
Quote:
Originally Posted by MKtheater View Post

We know these things we have displacement but I am hoping they sound good too! You know how those big woofers are big and slow compared to my little 13's which were small and fast. Oh wait, I am talking about the ability to throw them not to play bass. Carry on!
Hahhah...
Nick already has a rep for motor shot-put, let's see him try that with this guy...lol


Sorry man...timing was just right!
post #216 of 522
"Murica! *bbbuuurrrrrrppppp*"
post #217 of 522
I read through the entire thread and I apologize if I missed it or this has been asked. You set the price if the 24" ib at $699, since the sealed ported version will need a larger motor will there be an increase in price. I'm really interested in 2 or 4 of these for sealed cabs.

Dan
post #218 of 522
Quote:
Originally Posted by N8DOGG View Post

In all honesty, you should have not posted T/S specs until it was the final product. Prototype numbers are never the same as the final version, no reason to even put them up until it's completely done. Pics and video's would have sufficed IMO to get everyones interest.

No problem. No more information will be released on this driver on this forum until production is 100% ready. Apparently keeping the DIY crowd updated about the progress was a bad idea. mad.gif
post #219 of 522
all n8 was saying is that when specific details are made available people may latch onto them. if they are not the final details, then no sense in putting them out there for people to latch onto. your sharing the pictures, videos, and general discussion of the new product is appreciated... the 18ht has been a real success around here. hopefully, the 24" will be too.
post #220 of 522
Also, when people later on search for results, they may get the older T/S specs and if things change a lot, it could lead to one less customer because it didn't model properly etc, I've even had that exact thing happen to me before. We all know it should be a sweet driver, make everyone wait. Just ask Emotiva what happens when you give out info on prototypes... eek.gif
post #221 of 522
Moral of the story, can't keep everybody happy.
post #222 of 522
I may have missed it but what amps are you going to run on your 4 subs project?
post #223 of 522
Well, there's some hubbub on another forum about this driver not being the displacement king. I think most people realized that early on, despite the marketing claim to the contrary.

For the money, though, it looks like an awesome driver. One of these with an accelerometer on it, in an LLT, should be more than enough for almost any home theater.
post #224 of 522
Quote:
Originally Posted by MrHelpful View Post

Well, there's some hubbub on another forum about this driver not being the displacement king. I think most people realized that early on, despite the marketing claim to the contrary.

For the money, though, it looks like an awesome driver. One of these with an accelerometer on it, in an LLT, should be more than enough for almost any home theater.

We forgot about the MTX Jackhammer's un-confirmed Xmax claims and have edited our IB 24" web page to reflect that. Sorry guys. Apparently it takes about $10,0000 to out-displace our 24" woofer with a single driver. cool.gif
post #225 of 522
Quote:
Originally Posted by popalock View Post

Hahhah...
Nick already has a rep for motor shot-put, let's see him try that with this guy...lol


Sorry man...timing was just right!

I look like such a weak bastard in that video. But I ask you readers this: how high can you toss a 25lb weight from the gym in the air? Wait...that probably didn't help. I still look weak in that video no matter what. tongue.gif
post #226 of 522
Quote:
Originally Posted by Electrodynamic View Post

We forgot about the MTX Jackhammer's un-confirmed Xmax claims and have edited our IB 24" web page to reflect that. Sorry guys. Apparently it takes about $10,0000 to out-displace our 24" woofer with a single driver. cool.gif

You've definitely got an extra zero in that price. Also, whether or not the MTX specs are accurate (why wouldn't they be? Are MTX known to fudge/fake the numbers?) you'd need to exceed the Xmax of the Jackhammer just to equal its displacement.

For a 400lb driver I don't think the price is way out of line but you can justify a premium when you're selling a statement that's without competition. But when you're making a statement you're probably not trying to sell it.

For the record the website says:

"Stereo Integrity's 24” IB subwoofer ... With 36mm of Xmax and a surface area of 212943.8mm^2 it is largest displacement subwoofer on the planet."
http://stereointegrity.com/index.php?id=61

Also, your Xmax claims are un-confirmed.
post #227 of 522
Quote:
Originally Posted by martinq View Post

Quote:
Originally Posted by Electrodynamic View Post

We forgot about the MTX Jackhammer's un-confirmed Xmax claims and have edited our IB 24" web page to reflect that. Sorry guys. Apparently it takes about $10,0000 to out-displace our 24" woofer with a single driver. cool.gif

You've definitely got an extra zero in that price.

http://www.onlinecarstereo.com/CarAudio/p_30760_MTX_TS9924-22.aspx

$9999.95


For the record the website says:

"Stereo Integrity's 24” IB subwoofer ... With 36mm of Xmax and a surface area of 212943.8mm^2 it is largest displacement subwoofer on the planet."
http://stereointegrity.com/index.php?id=61

Also, your Xmax claims are un-confirmed.[/quote]

The un-confirmed number for the MTX Jackhammer 24 is the equivalent of 34.29 mm.

http://2004.mtxaudio.eu/IMG/pdf/OM-JackHammer24.pdf

Xmax 1.350 in = 34.29 mm

Sd = 483.92 sq.in = 317141.8 mm squared
Edited by arnyk - 8/20/13 at 12:06pm
post #228 of 522
Did I miss the Klippel LSI charts? I'd love to test one of these for you if you haven't had I done it yet.

Jim
/////Alpine
post #229 of 522
http://www.onlinecarstereo.com/CarAudio/p_30760_MTX_TS9924-22.aspx

Please guys...you must read the review at the bottom of that page!!!
It's too funny to miss!

What a joke! rolleyes.gif
post #230 of 522
Quote:
Originally Posted by Electrodynamic View Post

I look like such a weak bastard in that video. But I ask you readers this: how high can you toss a 25lb weight from the gym in the air? Wait...that probably didn't help. I still look weak in that video no matter what. tongue.gif

Ha, it makes more sense knowing that it weighs more than twice what a high school shot put weighs.
post #231 of 522
Quote:
Originally Posted by Jim Walter View Post

Did I miss the Klippel LSI charts? I'd love to test one of these for you if you haven't had I done it yet.

Jim
/////Alpine

We may take you up on that Jim. No one else seems to be ready (have the big baffle needed) to test it. Can you shoot me an email at ht sales at stereo integrity dot com? Gotta keep the SPAM bots away. smile.gif
post #232 of 522
Quote:
Originally Posted by martinq View Post

You've definitely got an extra zero in that price. Also, whether or not the MTX specs are accurate (why wouldn't they be? Are MTX known to fudge/fake the numbers?) you'd need to exceed the Xmax of the Jackhammer just to equal its displacement.

For a 400lb driver I don't think the price is way out of line but you can justify a premium when you're selling a statement that's without competition. But when you're making a statement you're probably not trying to sell it.

For the record the website says:

"Stereo Integrity's 24” IB subwoofer ... With 36mm of Xmax and a surface area of 212943.8mm^2 it is largest displacement subwoofer on the planet."
http://stereointegrity.com/index.php?id=61

Also, your Xmax claims are un-confirmed.

mtx says that the xmax is 1.35 inches which is 34.29 mm of travel. And mtx's claims are also not confirmed and they now do have competition at a fraction of the price which makes their price seem really ridiculously overpriced. You could buy 14.28 of the SI drivers for that price.eek.gif
Edited by 16hz lover - 8/19/13 at 8:17pm
post #233 of 522
Driver displacement: 2 cuft on the jackhammer. 99% of the people on this forum have smaller subs than 2 cuft to begin with...Haha
post #234 of 522
I just got imagining a wall of 14 SI drivers. True bass heads would wet their pants upon the first sight of them. Who's going to be the first one to do it?eek.gif
post #235 of 522
Quote:
Originally Posted by 16hz lover View Post

I just got imagining a wall of 14 SI drivers. True bass heads would wet their pants upon the first sight of them. Who's going to be the first one to do it?eek.gif

i dont think your insurance would cover all the damage it would cause
post #236 of 522
Quote:
Originally Posted by 16hz lover View Post

I just got imagining a wall of 14 SI drivers. True bass heads would wet their pants upon the first sight of them. Who's going to be the first one to do it?eek.gif

14 is a strange number?

I'm going to wet my pants when I see one in person. lol

It would be nice to win the one they are giving away!
post #237 of 522
Quote:
Originally Posted by popalock View Post

14 is a strange number?

Yeah. Better make it 16.
post #238 of 522
16 is coming....slowly but surely it is coming. biggrin.gif
post #239 of 522
It's great that they are doing the raffle/giveaway for this monster too. Nick is a cool dude.wink.gif
post #240 of 522
waiting on even further updATES ON the HT version......... 3 month mark is comin up
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