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post #1441 of 1650 Old 05-23-2020, 03:15 PM
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Quote:
Originally Posted by Aisthetikos View Post
Hi Juju-

The TBW/Dev certainly grabs you and give chest thump. I think I am still just getting used to this style of sub, and experimenting with it.
THAT makes more sense...LOL..... now to add a bit of "thump" I also have a Full Marty w/460HO ..... they add just enough grit to be awesome...

I currently have a lonely 460HO and will build a second soon.... I will be changing both of the FM dims to be more square for my space but the same volume as the original FMs.....


Juju

Sub List: 1- Red Five Mini V1 Devastator 18" w/PA460, 1- Red Five Devastator LFE 21", 1- Red Five Devastator 21" Finalizer V2 DF , 1- BOSS platform [The Hideaway Theater], 2- 18" "Full Marty" tuned to 17Hz w/RSS460HO
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post #1442 of 1650 Old 05-23-2020, 04:41 PM
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Originally Posted by a77cj7 View Post
Ok, I remodeled it with the tbw on 700w, which is a bit more than the 3000d pushes per channel.



Same filters used. One port plugged looks good on excursion and velocity. Two plugged is too high on both.

I would caution against using sealed and Devastators together, integration is very challenging.

Chris
So here is my final integration with one port plugged and a 3rd order high pass at 14hz. Had to throw on a few more filters than my liking to deal with some nasty room nodes, but I have some GIK corner traps coming soon, hoping that will level out some of the decay.

Edit:

Also, crossover is at 100. My L/R don't have much low end and can drag down the curve if not fed well :/

Cheating a little bit with zoom and smoothing! but we only here +-3dB eh
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post #1443 of 1650 Old 05-26-2020, 09:31 AM
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I've read through most of this thread and am truly envious of the knowledge and skill shown here. Pretty cool stuff. I might give a devastator build a go at some point and I'm looking at the Devastator Dual JBL 12. I don't have a whole lot of space so its form factor seems pretty good. A couple of questions though...1) It is ok to have this down-firing? and 2) I think I saw it comes in at 1.8 ohms - what should I power it with? I know I'll probably get a quite a few Behringer votes but I guess I'm weary of the fan noise and maybe a somewhat cumbersome/finicky connection with my receiver. Thanks!
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post #1444 of 1650 Old 05-26-2020, 01:16 PM - Thread Starter
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Quote:
Originally Posted by huskerfan73 View Post
I've read through most of this thread and am truly envious of the knowledge and skill shown here. Pretty cool stuff. I might give a devastator build a go at some point and I'm looking at the Devastator Dual JBL 12. I don't have a whole lot of space so its form factor seems pretty good. A couple of questions though...1) It is ok to have this down-firing? and 2) I think I saw it comes in at 1.8 ohms - what should I power it with? I know I'll probably get a quite a few Behringer votes but I guess I'm weary of the fan noise and maybe a somewhat cumbersome/finicky connection with my receiver. Thanks!
Any woofer it will eventually droop, I have not run the formula for the JBLs, assuming since it is a car woofer that are more than likely designed to end up in an give direction. The Crown XLS 1002 should be a good match, one Dual on each channel. I think it is rated for 500 watts a channel into 2 Ohms. I would not recommend running a berry with low impedance. You will need a MiniDSP, but those are just great to have in your system.
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post #1445 of 1650 Old 05-26-2020, 01:51 PM
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Thanks Red Five. I'll probably stop back in with more questions once I get the nerve (and the time) to build one.
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post #1446 of 1650 Old 05-27-2020, 12:11 PM
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Quote:
Originally Posted by Red Five View Post
Shallow BMD DF is tight, but it should work from the looks of it. That is roughly the size of the SAN214.50 in there.


Is there any more info on this one?
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post #1447 of 1650 Old 05-27-2020, 01:20 PM
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Quote:
Originally Posted by Bnaan View Post
Is there any more info on this one?
@Bnaan
RF just had a baby last week so it may be a few days before he hashes out this box... that was just a concept drawing.


Juju
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Sub List: 1- Red Five Mini V1 Devastator 18" w/PA460, 1- Red Five Devastator LFE 21", 1- Red Five Devastator 21" Finalizer V2 DF , 1- BOSS platform [The Hideaway Theater], 2- 18" "Full Marty" tuned to 17Hz w/RSS460HO
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post #1448 of 1650 Old 05-27-2020, 01:28 PM
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Quote:
Originally Posted by jujuman200 View Post
@Bnaan
RF just had a baby last week so it may be a few days before he hashes out this box... that was just a concept drawing.


Juju
Ohh okay, great for him! I can imagine calculating subs isn't very high on the priority list right now
Congrats @Red Five !
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post #1449 of 1650 Old 05-29-2020, 03:25 PM
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This sufficient for filling?


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post #1450 of 1650 Old 05-29-2020, 03:45 PM - Thread Starter
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Originally Posted by monty6400 View Post
This sufficient for filling?


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It looks like it is close to the vent, it might restrict air flow. You would be better off cutting it in half and stapling it on opposing panels if possible.

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post #1451 of 1650 Old 06-02-2020, 02:03 PM
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I've looked around and what most people seem to do is finish these huge boxes by painting black, has anyone who finished it in veneer able to help me out please?
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post #1452 of 1650 Old 06-02-2020, 02:09 PM
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Originally Posted by jahowe6 View Post
I've looked around and what most people seem to do is finish these huge boxes by painting black, has anyone who finished it in veneer able to help me out please?
I don't think I've seen any veneer finishes on devastator builds. I could see this being pretty difficult when you get to the ported areas, vs a sealed sub. But a nice Matte Black port that is painted, and then have a veneer wrap for the rest of the sub up to the ports could look pretty nice.
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post #1453 of 1650 Old 06-02-2020, 02:12 PM
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Originally Posted by jujuman200 View Post
@Bnaan
RF just had a baby last week so it may be a few days before he hashes out this box... that was just a concept drawing.


Juju
Congrats on the baby @Red Five ! Maybe with the addition of the new baby he will start designing mini subs for a while in celebration
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post #1454 of 1650 Old 06-02-2020, 02:12 PM
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Originally Posted by pyrobuilder View Post
I don't think I've seen any veneer finishes on devastator builds. I could see this being pretty difficult when you get to the ported areas, vs a sealed sub. But a nice Matte Black port that is painted, and then have a veneer wrap for the rest of the sub up to the ports could look pretty nice.
I think you are right, originally thought of doing a gloss black front but after research that is super hard to achieve, then a nice walnut wood veneer around it but i cant seem to find any uk suppliers of veneer.
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post #1455 of 1650 Old 06-02-2020, 03:56 PM
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I actually covered nine in felt and right over the vents. Yes there are two boxes for each corner. I needed the felt to kill the ambient light from the screen because it is set back in between the four Devs. Turned out way better than I expected.


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post #1456 of 1650 Old 06-02-2020, 06:02 PM - Thread Starter
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Congrats on the baby @Red Five ! Maybe with the addition of the new baby he will start designing mini subs for a while in celebration
I am thinking about a DF version of the M18V5, or as close as I can get to it. The BMD shallow DF and the Quad DF are on the list before that though. No timeline^ on any of that at the moment lol.
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post #1457 of 1650 Old 06-05-2020, 06:07 AM
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Well drivers arrived today, mounted one of them to test in the enclosure and couldn’t stop giggling the pressure at the mouth with dance music is un real!



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post #1458 of 1650 Old 06-05-2020, 06:08 AM
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Ps the tiny JBL is only temporary (HT12s incoming!)


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post #1459 of 1650 Old 06-05-2020, 06:24 AM - Thread Starter
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Originally Posted by monty6400 View Post
Well drivers arrived today, mounted one of them to test in the enclosure and couldn’t stop giggling the pressure at the mouth with dance music is un real!



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Wait until you get two of them fully integrated Even the Mini 18 V1s for music are ridiculously awesome. They are even very under powered in the current configuration...

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post #1460 of 1650 Old 06-05-2020, 06:33 AM
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Wait until you get two of them fully integrated Even the Mini 18 V1s for music are ridiculously awesome. They are even very under powered in the current configuration...

I’ve got some B&C 15TBW100s on the way that I got for really cheap, I was going to build some DRs for them but am seriously considering going bigger and doing the 15” full range dev, for a strictly music system!


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post #1461 of 1650 Old 06-05-2020, 07:38 AM - Thread Starter
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I’ve got some B&C 15TBW100s on the way that I got for really cheap, I was going to build some DRs for them but am seriously considering going bigger and doing the 15” full range dev, for a strictly music system!


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I have not updated a 15" design in a long time. They will work in the current 15" model though.

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post #1462 of 1650 Old 06-11-2020, 12:54 PM - Thread Starter
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One sanity check on the BMD Shallow DF. 1000 watts of power going into a SAN214.50.


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post #1463 of 1650 Old 06-12-2020, 06:52 AM
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One sanity check on the BMD Shallow DF. 1000 watts of power going into a SAN214.50.


I keep wanting to click the image to get it to open up with proper proportions, and have to keep reminding myself this IS a pancake. Might have to build one of these down the road to put under my kids beds to wake them up in the morning.
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post #1464 of 1650 Old 06-12-2020, 01:31 PM - Thread Starter
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BMD Shallow DF 21"

The BMD Shallow DF! The form factor is best suited for fitting behind couches, becoming a couch or maybe even a guest bed. The simulation is based on the Lavoce SAN 214.50 running at 1000 watts with a BW 18Hz 3rd order high pass filter. Excursion and Velocity are relatively low, add 3db for 2000 watts, which the enclosure and woofer should easily handle. The tune is calculated at 18.2Hz, but with the straight vent reducing air friction I would expect it to climb closer to 19Hz. More detailed goodies in the attachments.























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post #1465 of 1650 Old 06-12-2020, 02:04 PM
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My Devastator journey began after the pandemic forced us to stay home. I always wanted to build a sub but just didn't have the time or the resources to do so. Forced to stay home, I saw this as an opportunity to do exactly that and finally build my first DEV and integrated it into my home theater which is primarily used for movies (95%). Post build was a nightmare due to my lack of knowledge and not been able to get additional equipment in time to try and resolve issues but thanks to this wonderful community and the support they provide, I must say, I am impressed and I am hooked.
A massive shout out to @redfive who guided me through the ups and downs, showed me the way and answered my questions at every odd hour of the day and night. John, I cannot thank you enough! If you are ever in the NJ area, I would love to meet you and thank you in person. @johnson636 , @Jk7.2 @trilkb , you all have been fabulous in your support and I sincerely thank you. If you are ever in my nick of the woods, please do plan on meeting. I will be obliged.

I will post some pictures later and will try to write up a post detailing my challenges so that someone can benefit from them in the future but for now, one observation I can share is that we re-watched Avatar yesterday night and with my HT being in the basement, I could see and feel including many things, bathroom light fixtures and medicine cabinet shake at the first floor level. I have been smiling since than and can affirm that all the frustration, stress, road blocks and bottlenecks I faced were well worth it in the end. I truly am "Devastated" in a good way! On to the next build ...

DEV Details:

DEV Version - V6
Wood used - Baltic Birch
Driver - Eminence NSW6021-6
Amp - Crown 2502 XLS
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post #1466 of 1650 Old 06-12-2020, 07:50 PM
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Glad you got everything worked out 👍

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post #1467 of 1650 Old 06-13-2020, 12:24 AM
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Hi all.

I just finished a pair of Mini dev V4 with Dayton PA460's for a friend, but are struggeling a bit with the EQ bit, as this is not my ballpark at all.

Does anyone have a starting point file for a Inuke dsp? A file with the hi-pass and (i would guess) some shelving to flatten the curve, then i should be able to make the room adjustments later, as they would be more obvious (to me at least).

Thanks!

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post #1468 of 1650 Old 06-13-2020, 12:38 PM - Thread Starter
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Hi all.



I just finished a pair of Mini dev V4 with Dayton PA460's for a friend, but are struggeling a bit with the EQ bit, as this is not my ballpark at all.



Does anyone have a starting point file for a Inuke dsp? A file with the hi-pass and (i would guess) some shelving to flatten the curve, then i should be able to make the room adjustments later, as they would be more obvious (to me at least).



Thanks!
The PA460 is something I would not boost an incredible amount. In that box I would start with a 20Hz PEQ filter that has a Q value of .6 and a boost value of 6db. If you are using a Nuke I would set a Butterworth high pass filter at 20Hz with a 12db slope (2nd order). Your power handling will most likely be around 200 to 250 watts.

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post #1469 of 1650 Old 06-15-2020, 05:38 AM
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Though I was very little help if any compared to other people, Im definitely glad you got it all worked out. I tried to get a guy into a 18" build and for some reason he just couldn't get it to work and bailed, you realize how much he missed out on just by giving up on it. Good thing you kept going till it worked right and can see the benefits.

BTW, I bought the man with the iron fists on bluray, that movie has some serious sound/bass. Its kind of messy (could be my room/acoustics) but man, theres some nice quality bass in that movie.

- MIRAGE OM-C2 Center, MIRAGE M490 L/R, 4 JBL 8330a surr , 8 x JBL 12" subs w/Inuke 6000. JVC RS420, Denon x4000, Sony x800 -
Classix ii's + building Paul Carmody Sunflower Redux for 2 channel

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post #1470 of 1650 Old 06-15-2020, 05:46 AM
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Originally Posted by trilkb View Post
Though I was very little help if any compared to other people, Im definitely glad you got it all worked out. I tried to get a guy into a 18" build and for some reason he just couldn't get it to work and bailed, you realize how much he missed out on just by giving up on it. Good thing you kept going till it worked right and can see the benefits.

BTW, I bought the man with the iron fists on bluray, that movie has some serious sound/bass. Its kind of messy (could be my room/acoustics) but man, theres some nice quality bass in that movie.
Thanks @trilkb . I will try and get that movie but I am delighted with the results so far.
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