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7 x RE Audio XXX 18" subs, Infinite Baffle Sub, Ultimate IB build - Page 2

post #31 of 530
10/8/12 at 8:49pm
4 re xxx's in an IB setup. Great idea! They are huge drivers Dave and very deep.Pay close attention to the physical dimensions, could be a deal breaker. I have a build thread for mine. Only have one manifold with two drivers in it. So far. Two more drivers sitting very lonely and neglected in the spare room.
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post #32 of 530
10/8/12 at 9:12pm
Thread Starter 
Quote:
Originally Posted by keager View Post

4 re xxx's in an IB setup. Great idea! They are huge drivers Dave and very deep.Pay close attention to the physical dimensions, could be a deal breaker. I have a build thread for mine. Only have one manifold with two drivers in it. So far. Two more drivers sitting very lonely and neglected in the spare room.

Yes, I just stumbled upon your thread while trying to get specs. Very nice indeed. The physical dimensions are not a problem, nor is the weight of them. I am trying to model them, with no success again

Does this look correct?





Thanks again guys.
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post #33 of 530
10/8/12 at 9:39pm
Looks about right. I modeled mine in Winisd using 999999cu ft sealed and with a fp10000q clone amp(2100w per ch.), it takes it right to xmax.
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post #34 of 530
10/8/12 at 9:43pm
Using a 10hz hpf I might add. As Ricci has stated before, these drivers are going to really let you know before you get the point of causing physical damage from excursion.
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post #35 of 530
10/8/12 at 10:06pm
Thread Starter 
BTW, you have a great setup!cool.gif

And could you tell me how to change the SPL reading on the side of the graph as well as how low the FR in Hz goes as well. ATM, I can only see up to 104db and down to 10Hz, there must be a setting so as you can see lower and higher Db on a driver/drivers, bc at present I can't.
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post #36 of 530
10/8/12 at 10:09pm
Quote:
Originally Posted by keager View Post

Looks about right. I modeled mine in Winisd using 999999cu ft sealed and with a fp10000q clone amp(2100w per ch.), it takes it right to xmax.

Keager! Man with the XXX plan!

Hey, so comparing the XXX to the LMS-U, can anyone comment on how the XXX handles being pushed past it's limit? Is it more forgiving?

We all know the LMS-U bottoms HARD, but how does the XXX fare when pushed past it's limit? Permanent damage, or just a stark reminder???
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post #37 of 530
10/8/12 at 10:17pm
Quote:
Originally Posted by popalock View Post

Keager! Man with the XXX plan!
Hey, so comparing the XXX to the LMS-U, can anyone comment on how the XXX handles being pushed past it's limit? Is it more forgiving?

We all know the LMS-U bottoms HARD, but how does the XXX fare when pushed past it's limit? Permanent damage, or just a stark reminder???
Ricci said it is going to make a lot of noise before damage is done. i think at the 60mm point is when you get into trouble.
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post #38 of 530
10/9/12 at 6:08am
Quote:
Originally Posted by JapanDave View Post

And could you tell me how to change the SPL reading on the side of the graph as well as how low the FR in Hz goes as well.
Press right button over graph and select options...

And don't chance 0,1 ohm series resistance at signal page. It's meant for additional resistor size in series with driver I guess.
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post #39 of 530
10/9/12 at 7:34am
Quote:
Originally Posted by keager View Post

Ricci said it is going to make a lot of noise before damage is done. i think at the 60mm point is when you get into trouble.

60mm sounds incredible. You know, the only thing I don't like about using the XXX in an IB setup is not being able to see the glorious ba$terds in action.

Tell you what, as anal retentive as I about having matching gear, having 4 XXX IB'd along with 4 LMS-U's sealed wouldn't bother me at all!

One of my fave comparison pics. (thanks keager)

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post #40 of 530
10/9/12 at 7:41am
I have broken a XXX by giving it roughly 4000w below tuning in a ported enclosure. It was on accident during testing. Messed up with my EQ settings in the DCX trying to "make" a below 12Hz HPF. Anyway I have never been able to get the former to hit the back stop on one. What will happen is the triple joint on the bottom spider will contact the top plate at around 60-62mm on the inward stroke. What will happen is you will break loose the spiders from the glue on the former. Anyway these will take an incredible beating and will give ample warning noise before you break something. You really have to try to break one or just be an idiot. See the attached pics. Recones are about $170 if you do manage to somehow break one.


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post #41 of 530
10/9/12 at 7:49am
Back on subject Dave already has 4 5400's. I don't see a need for him to buy anything else. I just don't like the 5400 in IB. Put 2 of them in a 21x21x29" sealed enclosure dual opposed. Repeat for the other 2 drivers and call it a day.
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post #42 of 530
10/9/12 at 7:59am
Thread Starter 
Quote:
Originally Posted by Ricci View Post

Back on subject Dave already has 4 5400's. I don't see a need for him to buy anything else. I just don't like the 5400 in IB. Put 2 of them in a 21x21x29" sealed enclosure dual opposed. Repeat for the other 2 drivers and call it a day.

Thanks for the advise again guys.
I just got an email from Ficar and hopefully they are going to ship me the 4 18" drivers. And if they do, I am going to also take your advise Ricci, stick the 4 LMS is sealed dual opposed and stick them in the back of the room where they will fill any dips in the in room response, so this will hopefully smooth out the in room response at the LP. Then hopefully this will be enough that I won't break anything. If not I will get the 4 XXX 18's and do the same and be done with it.

Is there a way of modeling 4 subs with 4 different subs to see what theoretical kind of response you may get with them combined?
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post #43 of 530
10/11/12 at 4:51am
Thread Starter 
Ok, Here is the story. The Ficar people are taking too long to reply, so I am going to go with 4 x RE XXX 18's. I can then run the 4 x TC sounds Ultra 18's in small dual opposed cabs in the back of the room and this should hopefully give me the head room I am looking for.

I am going to use these(RE XXX) with the Clone FP14000 amp.

My question is, I am going to run two subs off one channel, so should I get the 2 or 4 ohm driver?

Running 2 drivers in series at 4 ohms will give me about 4400w into 2 drivers. But running 2 x 2ohms driver in parrallel will give me 8ohms and only 2350w of power. I believe it would be better to have more power, yes?
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post #44 of 530
10/11/12 at 7:39am
Quote:
Originally Posted by JapanDave View Post

Ok, Here is the story. The Ficar people are taking too long to reply, so I am going to go with 4 x RE XXX 18's. I can then run the 4 x TC sounds Ultra 18's in small dual opposed cabs in the back of the room and this should hopefully give me the head room I am looking for.
I am going to use these(RE XXX) with the Clone FP14000 amp.
My question is, I am going to run two subs off one channel, so should I get the 2 or 4 ohm driver?
Running 2 drivers in series at 4 ohms will give me about 4400w into 2 drivers. But running 2 x 2ohms driver in parrallel will give me 8ohms and only 2350w of power. I believe it would be better to have more power, yes?

Congrats on your decision!!!!

The dual 4 ohm version will maximize the usage of your FP14K in your specific scenario.
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post #45 of 530
10/11/12 at 10:34am
Dave are you still in Japan?
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post #46 of 530
10/11/12 at 10:52am
Quote:
Originally Posted by popalock View Post

Congrats on your decision!!!!
The dual 4 ohm version will maximize the usage of your FP14K in your specific scenario.

Dave, before you order make sure you talk to someone with in the company and tell them you want the same driver. Not sure if you have followed Keager's IB build, but when he ordered his 4 RE XXX they sent him two different drivers. Well...two different dustcaps anyway. While I can't speak to if the drivers were different in any other way, the dustcap issue in and of itself would drive me nuts.
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post #47 of 530
10/11/12 at 12:00pm
Quote:
Originally Posted by popalock View Post

Dave, before you order make sure you talk to someone with in the company and tell them you want the same driver. Not sure if you have followed Keager's IB build, but when he ordered his 4 RE XXX they sent him two different drivers. Well...two different dustcaps anyway. While I can't speak to if the drivers were different in any other way, the dustcap issue in and of itself would drive me nuts.

Wouldn't be a bad idea to check in that especially with your location. I think it was just a fluke because RE had run out the normal dustcap temporarily. I bought them from two diiferent companies months apart, so i think the issue is long gone. Good thinkin though, Popalock.
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post #48 of 530
10/11/12 at 1:02pm
The current XXX's all seem to come with the RE logo like on the MX and not the XXX logo anymore. Not sure why.
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post #49 of 530
10/11/12 at 2:55pm
Thread Starter 
Quote:
Originally Posted by Ricci View Post

Dave are you still in Japan?

Hi Ricci, yes I am still in Japan. Shipping is expensive.mad.gif
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post #50 of 530
10/11/12 at 4:59pm
Thread Starter 
Quote:
Originally Posted by popalock View Post

Congrats on your decision!!!!
The dual 4 ohm version will maximize the usage of your FP14K in your specific scenario.
Thanks for the advise.
Quote:
Originally Posted by keager View Post

Wouldn't be a bad idea to check in that especially with your location. I think it was just a fluke because RE had run out the normal dustcap temporarily. I bought them from two diiferent companies months apart, so i think the issue is long gone. Good thinkin though, Popalock.
I will make sure that they are, thanks.

I have been following keagers thread, it is a great thread for sure.

Ok, So I am going down to the bank in about a hour to wire the $5,000 for the drivers and shipping, so any last suggestions before I do , now is the time.smile.gif
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post #51 of 530
10/11/12 at 5:54pm
Quote:
Originally Posted by JapanDave View Post

Thanks for the advise.
I will make sure that they are, thanks.
I have been following keagers thread, it is a great thread for sure.
Ok, So I am going down to the bank in about a hour to wire the $5,000 for the drivers and shipping, so any last suggestions before I do , now is the time.smile.gif

check sonic electronix for your order. It should be significantly less than 5 grand for 4 drivers. That is unless it costs close to $1800 to ship them...

If that is the case, Ill fly them over with me to Japan and bounce around and we can call it even if you want to pay my way smile.gif Unless of course you are a Sith lord in real life, then Ill keep my distance tongue.gif
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post #52 of 530
10/11/12 at 6:25pm
Thread Starter 
Quote:
Originally Posted by beastaudio View Post

check sonic electronix for your order. It should be significantly less than 5 grand for 4 drivers. That is unless it costs close to $1800 to ship them...
If that is the case, Ill fly them over with me to Japan and bounce around and we can call it even if you want to pay my way smile.gif Unless of course you are a Sith lord in real life, then Ill keep my distance tongue.gif
$1600 to ship, they are some heavy bastards. And I checked with Sonic and that was the best price on shipping they could do.
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post #53 of 530
10/11/12 at 6:41pm
Man, I thought all electronics were still made in Japan. The irony here has to sting just a little.
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post #54 of 530
10/11/12 at 8:40pm
Thread Starter 
Well transfer completed and I should have the drivers next week. So I will hopefully be able to add some more pics to my build thread and finally get the system EQ'ed
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post #55 of 530
10/12/12 at 5:45am
Quote:
Originally Posted by imagic View Post

Not when it comes to pro audio stuff. Ever hear of JBL & Crown? Harman International should ring a bell. Many specialty drivers come from the USA. Completely not ironic. As far as electronics in general go there are a number of American companies who's products are very popular like Intel, Apple, Texas Instruments...

Apparently Mr. Spock isn't the only one that doesn't pick up on sarcasm...
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post #56 of 530
10/12/12 at 6:45am
Thread Starter 
Quote:
Originally Posted by BllDo View Post

Apparently Mr. Spock isn't the only one that doesn't pick up on sarcasm...

LOL.

Now, the big question, what will the in room response be with infinitely baffled 4 x RE XXX 18"s + 4 sealed LMS ultra 18" s in a 3000cf solid concrete bunker be like?
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post #57 of 530
10/12/12 at 6:50am
Quote:
Originally Posted by JapanDave View Post

LOL.
Now, the big question, what will the in room response be with infinitely baffled 4 x RE XXX 18"s + 4 sealed LMS ultra 18" s in a 3000cf solid concrete bunker be like?

Do you have a mini dsp or anything? You may need some kind of eq if you are combining IB and sealed subs
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post #58 of 530
10/12/12 at 6:56am
Thread Starter 
Quote:
Originally Posted by keager View Post

Do you have a mini dsp or anything? You may need some kind of eq if you are combining IB and sealed subs

I am using this receiver which will be able to integrate things nicely I believe.

http://www.cepro.com/article/cedia_faves_datasat_rs20i_audio_processor_borrows_from_commercial_cinemas/
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post #59 of 530
10/12/12 at 7:13am
Good god....
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post #60 of 530
10/12/12 at 7:22am
Quote:
Originally Posted by JapanDave View Post

LOL.
Now, the big question, what will the in room response be with infinitely baffled 4 x RE XXX 18"s + 4 sealed LMS ultra 18" s in a 3000cf solid concrete bunker be like?

Pretty much you will have so much headroom you can shape your response to look like pretty much anything you want. Smiley face, Christmas tree, that naked woman you see on people's truck tire flaps, etc etc. you'll be able to shape it anyway you want if you get something capable to do so. pay particular attention to phase/delay to get them all to play well together...
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