Blog › Forums › DIY Speakers and Subwoofers › Audience 212 Build Log
Tagged: diffraction, toids
- This topic has 105 replies, 5 voices, and was last updated 5 months ago by
123toid.
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AuthorPosts
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February 21, 2022 at 6:51 pm #23182
123toid
KeymasterBUILD PLANS: https://bit.ly/audience212
Here is the beginning stages of the Audience 212. The thought process here is to try to design something like the JTR 212 but at a fraction of the cost. The cost of the JTR’s are currently $14,000 a pair (msrp). These I plan to keep these costs under $1,500 a pair (spoiler I came out at $650 a speaker or $1,300 a pair!).
Build Video:
Parts to Use:
(1) SB Audience Rosso 44cdn-pk US: https://bit.ly/3uvehJm UK: https://bit.ly/3Fw8hng
(2) SB Audience Nero 12MWN400D: https://bit.ly/3iLGkPb UK: https://amzn.to/3GzTBoa
(1) SB Audience H250 Horn: US: https://bit.ly/36yz0Ei UK: https://bit.ly/3fqFntZ
(1) Speakon Mount: https://amzn.to/3LuPYSR
(1) Speakon Adapter: https://amzn.to/3IKe2ix or 90 degree adapter: https://amzn.to/36ZhOr2
Here is the woofer being used, the SB Audience Nero-12MWN400D. it has a really nice NEO magnet on the back. One thing I did notice is that there was some glue that dripped on the metal frame. A quick scrape with a utility blade took it off. These also come with gasket material, which is a huge bonus.
Of you didn’t get to see the pictures of the drivers, they can be found here: https://toidsdiyaudio.com/forums/discussion/introducing-the-new-sb-audience/?no_frame=1
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February 21, 2022 at 6:51 pm #23187
123toid
KeymasterFront Baffle
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February 22, 2022 at 12:30 am #23199
tvor-ceasar
ModeratorAre you going for a LaVoce horn in this one? That’s the first one I found that seems to be of appropriate size per the cutout.
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February 22, 2022 at 11:25 am #23204
123toid
KeymasterIt’s actually the SB Audience H250. I’m really interested to see what it’ll do in this tie of arrangement. I’m a little disappointed. We’ve had so much rain, that is killing my testing.
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February 22, 2022 at 1:03 pm #23218
tvor-ceasar
ModeratorMuch better than the LaVoce, less cost and much lower frequency response.
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February 22, 2022 at 1:37 pm #23219
123toid
KeymasterI am interested in trying Lavoce sometime. I would like to try out some of their products. Just see what they are all about.
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February 23, 2022 at 6:36 am #23240
harry72
ParticipantAudience 212, sounds good to me
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February 23, 2022 at 1:41 pm #23242
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February 26, 2022 at 1:02 am #23298
ryanchouk
ParticipantAre you going to do a centre channel?
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February 28, 2022 at 3:32 pm #23341
remy-alexander
ParticipantDeep pockets build righ there
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March 1, 2022 at 2:32 am #23354
123toid
Keymaster@ryanchouk quite possible 😃
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March 1, 2022 at 2:35 am #23358
123toid
KeymasterWorked on some internal bracing. Tomorrow I’m going to try to get the fronts glued on . Once I double check tuning frequency, I’ll be able to install the drivers and start working on the crossover. I am really excited about this build. It’s coming along really well.
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March 1, 2022 at 12:08 pm #23362
schurter
ParticipantWhat CD are you learning towards
What size box have you built for this setup,
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March 1, 2022 at 7:40 pm #23366
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March 1, 2022 at 10:44 pm #23373
schurter
ParticipantNice on the 5 cuft, 4.5 when finished with bracing and stuffing?
These 12″ drivers are impressive!! , what kind of roll off would you like to see,
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March 2, 2022 at 1:44 am #23377
123toid
KeymasterSorry I mistyped. It is about 5.85 cubic feet before bracing and drivers. It should be about 5.5 cubic feet. I’ll know for sure tomorrow once I start testing.
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March 2, 2022 at 6:47 pm #23395
schurter
ParticipantIf you made this into a center channel would you keep it the same size, if you had to make it smaller, how small would you want,
In your opinion upgrading to the SB AUDIENCE ROSSO-65CDN-T, CD
Would this be a smart upgrade and help alot or just a little
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March 4, 2022 at 2:16 am #23434
123toid
KeymasterAfter doing some measurements, you could do a sealed center approximately 37″ wide. That would cut 21″ off. You can’t really go any smaller due to the driver spacing. You would however want to cross it over between 80-120hz (probably closer to 120Hz.
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March 4, 2022 at 10:35 am #23436
schurter
ParticipantWill box size have a effect on the xover,
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March 4, 2022 at 11:41 am #23437
123toid
KeymasterIn this case, no. The same crossover will work fine.
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March 4, 2022 at 12:19 pm #23439
schurter
ParticipantSo just for clarification,
As a example these are 6cuft box tune 50hz ported,
I could make it 4cuft tune 60hz ported and the same xover will work ?
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March 5, 2022 at 1:01 am #23455
123toid
KeymasterI’d have to double check, but that’s not the problem. 37″ is the least you can make the box just based off driver spacing. So you wouldn’t have anywhere to port it out. Typically a speaker that big you wouldn’t port it out the rear. I guess you could potentially port it out one of the sides, but that would be the only place. Any of those port placements would be problematic for speaker placement especially on a center channel. So unless you want to make it bigger than 37″ you would want to go sealed.
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March 5, 2022 at 7:53 am #23457
schurter
ParticipantThank you,
There’s a HT group following this build , some are interested in towers, then a smaller center some want rears ,
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March 5, 2022 at 3:16 pm #23464
123toid
KeymasterExcellent! The good thing about this build, is as long as you leave the width (14″) and the driver spacing the same, you can shorten the box anywhere from the designed 58″ down to 37″ (sealed) to fit your requirements. If you shortened the box to something around 4 cubic feet you could still tune it to around 52Hz with an anechoic F3 of 47Hz. Your port height you could shorten as well. You should be able to get away with something like a 44″ tall box. And if you really needed it shorter, you could make it as small as 40″ (ported). After that you would be better off sealed at 37″.
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March 30, 2022 at 10:47 pm #24027
mchockwy
ParticipantJust watched the video and yiu invited me to the forum, thanks. I think 40″ is the sweet spot with these while keeping the ports. It allows a horizontal center as most dont have accoustic screens and also isn’t too overwhelming of you have a smaller room.
For me, my issue is I have to Full Marty’s on their side under screen so the towers have to sit on top of the subs. I planned for an MTM configuration to get the tweeter as close to the middle 3rd of the screen.
I wish I would have learned about this build earlier as I have been waiting for the 1099’s to come back in stock for almost a year and Erich set some aside when he got some last week so I just ordered them.
I have 37″ for my center so these probably would have worked at 40″ with ports as towers and the 37″ sealed center.
These look so awesome that maybe when I am done the 1099’s I will have to build these as
Jeremy Shurter will keep me up to date on his build and that will probably get me even more amped about the purchase. 5 days earlier and I probably would have changed my mind and built shorter versions of these.
With JTR being such a hot brand right now, you should sell a lot of these plans!!
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March 5, 2022 at 5:04 pm #23467
69vettedood
ParticipantVery interested in seeing how this build works out. I was wondering on the center, since you are going w JTR style build, couldn’t you do the center similar to the JTR 212HT pictured below? I believe this one is vented out the front but above and below the driver when in horizontal configuration. This would allow narrower width overall, but should still be able to run below a screen. Since the horn is 90×90 dispersion pattern, running it horizontal shouldnt change it much I would think.
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March 5, 2022 at 6:49 pm #23468
123toid
Keymaster@69vettedood something like that could definitely work. However, you would want to make the speaker wider then the current design. The current width would not allow for side ports. By increasing the width it would affect the frequency response a little. If you kept the driver spacing the same, the crossover wouldn’t be an issue. It will just affect the baffle step a little and the diffraction. It is definitely something that is possible.
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March 6, 2022 at 12:06 pm #23471
123toid
Keymaster@69vettedood I just realized that the 212HT is 40″ tall. WIth that in mind, you should be able to run a port on the top and bottom (versus the sides like the 212HT), while maintaining the same height and not worrying about sacrificing the response. It would be tuned to 52Hz with an F3 of around 48Hz. You wouldn’t be sacrificing much low end at all.
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March 6, 2022 at 4:07 pm #23473
69vettedood
ParticipantI like the sound of that as a setup. Would more closely match the look of towers as well. Like I said, been looking forward to see how these turn out. Can’t wait to see the results!
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March 7, 2022 at 5:11 am #23490
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March 7, 2022 at 11:56 am #23493
schurter
ParticipantMy goal would build 2 X 6cuft L/R, center 4cuft horizontal ( horn / CD flipped to correct position ) everything front ported
Stay with the 4cuft box for rears, staying with the jtr theme big and badass !!!
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March 7, 2022 at 3:37 pm #23494
123toid
KeymasterThe great thing about this build is the Horn has the same vertical and horizontal dispersion, so there will be no need to flip anything, but the box 😃 It is one of the reasons I wanted to use this horn. It gives a lot more flexibility when placing the speakers.
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March 7, 2022 at 5:05 pm #23496
123toid
KeymasterHere’s some pictures of the exohyde applied. I’m really happy with this. I probably only needed about one coat. But it was really hard to see inside my shed. Two coats should be plenty. Having said that, you don’t use very much. So if you wanted to do three or four coats, you could easily do it.
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March 7, 2022 at 9:49 pm #23502
tvor-ceasar
ModeratorSure does look good. I bet the most reflective parts will now be the drivers. Might actually need some black grills if you really want them to disappear. Waiting to hear your impressions once they are finished and running.
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March 8, 2022 at 1:28 am #23507
123toid
Keymaster@tvor-ceasar yeah they’re turning out really good. The cones are a little reflective, but not bad. I don’t think it’s going to be any type of issue behind an acoustically transparent screen.
P.S. you still have the best comment of the night on the live stream. I still can’t believe people don’t know what a tardis is .
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March 8, 2022 at 8:19 am #23508
tvor-ceasar
ModeratorAh, behind the screen. I had the image of them being off to the sides, but now that I look back on the livestream, I get it. Not a problem there.
And as far as the Livestream, I was multitasking, working, lurking, and occasionally responding. When that comment was met with crickets, I did a Picard brow hold. At least Justin came through with Galifrey. But still, one of the most used comedic lines of the 58 year old show! I do believe that Tom Baker used it in his run from ’74-’81, which is more or less when I started watching on PBS (’70’s). (Just for reference)
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March 8, 2022 at 1:36 pm #23509
2007_tbss
ParticipantThis might be a dumb question. But with those being pretty sensitive speakers, how would this build do off AVR power? Also what ohm load will they be? This build is turning out awesome, I will be building them when it’s available. I Respect your work man. Keep it up!
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March 8, 2022 at 1:44 pm #23510
123toid
Keymaster@2007_Tbss honestly, I don’t find this to be a dumb question at all. When designing the crossover, I use a 25 watt amplifier. Believe it or not, it provides more than enough power to get these things sounding good. The more power, will help with the Dynamics and the bass region, but overall you are correct, you don’t need much power to power these at all.
Could you use your AVR? Absolutely, as long as it is 4ohm capable. These are a 4 ohm speaker and as such will need an amplifier that can push 4ohm.
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March 8, 2022 at 1:57 pm #23511
2007_tbss
ParticipantAwesome I’m happy to hear that! I’m running a denon x4200w I need to find out if it will do alright at 4ohm load, with that being said I would have no issue upgrading to a amp specifically for them in the future. Thanks!
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March 8, 2022 at 10:36 pm #23521
tvor-ceasar
ModeratorYour Denon is generally rated for 8 ohms, going down as low as 6 ohms.
I don’t know what they use for their outputs, discrete transistors or some sort of amp chip(s), but there’s a little thing that most people don’t know – you can run your amps (whether an AVR, Stereo, Monoblock, etc.) on lower nominal ohm rated speakers AS LONG AS you reduce the power output (volume control) by like percentage. So, going from 8 to 4 ohm, you’d want to only run the amps at 1/2 potential power, preferably a bit less, since you’ll be pulling twice the current than normal. Now, if your amp has over current protection, it may trip. If it’s anything like the old Onkyo’s, if the nominal impedance dipped below 6 ohms, they’d shut off no matter what. And honestly, if these are 6 dB + more efficient than what you have now, you’ll probably never even get that close to using even 1/2 the available power.
*** I found a photo of the amp board and it is using discrete output transistors. This make it a little more robust than a multiamp chip package.
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March 8, 2022 at 11:40 pm #23522
123toid
KeymasterGreat call @tvor-ceasar ! These speakers are actually pretty easy to drive. So I don’t really think they’re going to have much of an issue on most receivers. Of course they’ll just put it in protect mode if they do. I did go ahead and test this out as a center since I only have one completely built. I am blown away by the clarity. I ended up tuning it a little lower than I was going to originally. The thought process behind that is that it gives you the flexibility of running it full range without having to worry about over excursion of the woofers. However, you may end up using your room EQ or manual eqing the low end the little up to flatten out that bass. Currently I have the center crossed over at 40hz. Now I’m itching to get the second one built… And clean up the living room.
😁
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March 9, 2022 at 12:04 am #23525
tvor-ceasar
ModeratorYep, if it pulls too much current, the protect mode will kick in.
…second one, what about the third? Or will it be phantom center?
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March 9, 2022 at 12:08 am #23526
123toid
KeymasterI will do a third matching one eventually. I only have the parts for two right now.
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March 9, 2022 at 10:11 am #23529
schurter
ParticipantThese speakers are actually pretty easy to drive. So I don’t really think they’re going to have much of an issue on most receivers. Of course they’ll just put it in protect mode if they do. I did go ahead and test this out as a center since I only have one completely built. I am blown away by the clarity. I ended up tuning it a little lower than I was going to originally. The thought process behind that is that it gives you the flexibility of running it full range without having to worry about over excursion of the woofers. However, you may end up using your room EQ or manual eqing the low end the little up to flatten out that bass. Currently I have the center crossed over at 40hz. Now I’m itching to get the second one built… And clean up the living room.
This is very exciting news , 40hz is very impressive, this could be a killer diy front stage,
When you do your video, could you show how you would eq the low end,
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March 9, 2022 at 12:42 pm #23533
2007_tbss
ParticipantI’m actually selling a set of paradigm towers and center I have laying around and I’ve been eying the emotiva basx a3 specifically for this build. So I’ll probably end up going that route. Everything should be pretty available and easy to get for this build correct? I’m itching to do it haha
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March 10, 2022 at 3:09 pm #23558
123toid
KeymasterJust to clarify, these are still PA drivers, so the low end is not going to be very impactful and you are still going to want a subwoofer. The only reason you may want to tune that low is if you want to give them a lot of power and EQ them on the low end. I am still fine tuning them. SO I’ll let you know my honest preference once I am finished. I just don’t want you thinning it is hitting 30-80hz with authority on that type of tune. It isn’t. But it would give flexibility for those that do want to fine tune it themselves.
The parts should be readily available soon. The compression driver is the only thing I am waiting on to be stocked. As soon as that is and I am ready, then the video and plans will be out.
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March 11, 2022 at 5:52 pm #23581
2007_tbss
ParticipantYeah! I’m 100% good with that considering I’m running Polk signature s60 towers right now I’m sure this build will be a whole other level haha. Also I’m running 2 stereo integrity/sundown audio 18s on a behringer inuke3000. Also don’t mind my wall, I’m in the process of building a screen right now for the projector
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March 19, 2022 at 1:12 pm #23729
schurter
ParticipantWhat did you line the box with, do you have a link ?
Are We close to having your final thoughts,
Have you finished the xover to your liking
Jeremy
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March 19, 2022 at 2:13 pm #23737
123toid
KeymasterI just used an old mattress topper. However you can use an acoustic material for it. The crossover is complete and I really like them. I am still testing out a few more tuning frequencies to see which I prefer. I wanted to break in the woofers to see if their T/S specs changed at all before I did too many tuning changes to the box.
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March 19, 2022 at 3:27 pm #23741
schurter
ParticipantHow thick is the topper 1″ – 2″
Awesome I am looking for to these,
I wish my Parts would come in off back order, don’t want a 3rd project sitting and waiting 😒
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March 21, 2022 at 10:26 am #23776
schurter
Participantbeen meaning to ask you what would be the sensitivity on the JTR clones?
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March 21, 2022 at 2:54 pm #23780
123toid
KeymasterIt is just a 1″ topper. Well it is actually 1.25″ but it would be equivalent to most 1″ pads. I worked on the tuning and tuned it to 40hz, which allows me to use some minor eq to get the extension all flat down to 35hz and usable down to 30hz. Without doing any eq, my receiver using audyssey room eq picked it as a 40hz crossover. Meaning that if you are using any room eq, it should do those minor adjustments for you and cross it over low if that is what you desire. And I will say, I really enjoy crossing it over that low.
I didn’t measure the overall sensitivity, but the sensitivity should be the same as a single woofer, which is 98db 1w/1m.
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March 24, 2022 at 7:41 pm #23867
jcarp
ParticipantThis might be a dumb idea as I’m guessing by what you mean by reflective as I’m new to this. But if the plastic on the cone is reflective would spraying a coating on the exterior of the cone help reduce the reflections? Maybe a coating like plastidip that would give it a smooth rubberized finish to dampen the reflection.
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March 25, 2022 at 12:45 am #23870
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March 28, 2022 at 3:08 am #23943
123toid
KeymasterFirst I need to apologize, the video was supposed to be out Today (Sunday). Luckily I caught a huge mistake in the video before it was released. Unfortunately, the build video was not saved properly, which is having me re-edit it. No major issues there. I am trying to get it out this morning, by working all night. If I cannot, it’ll be out no later than Tuesday. I apologize about the delay. Here is a teaser pick in the meantime.
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March 28, 2022 at 6:06 am #23948
schurter
ParticipantAwesome 👌 👏 👍 😍
Looking forward to the video,
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March 29, 2022 at 12:21 pm #23973
123toid
KeymasterThe video is out! I am trying to get the plans out later tonight.
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March 29, 2022 at 12:56 pm #23976
AJC
ParticipantVideo looks good. If I may ask, why did you not do the slots for the bracing like you did for the last build?
Also, for the bracing, by reversing the holes like that, you prevent a long stretch inside the enclosure, which can help to break up longer waves reflecting on internal walls. That can reduce wavelengths able to escape through the port at the bottom. At least, that is my understanding.
Looks like a great build!
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March 29, 2022 at 1:00 pm #23978
123toid
Keymaster@ajc9988 that is absolutely the thinking of putting the braces the opposite way. I ended up rewording it. Mainly because there’s a huge debate on whether that actually makes a difference. There’s a lot of people that will say since the waves are so long they’ll just defract off of that and continue. Well others disagree and say that it’ll start to help break it up. I’ve never done any testing on whether it actually makes any audible difference. But there’s no reason why not to do that.
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March 29, 2022 at 12:43 pm #23975
schurter
ParticipantAwesome video!!!
last question
Is there a min distance from the speaker ?
I believe if I build these I’ll be 10-12ft
Will i Still be in the sweet spot
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March 29, 2022 at 1:03 pm #23979
schurter
ParticipantWell I am ready to buy the plans lol
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March 29, 2022 at 1:56 pm #23981
ryanchouk
ParticipantAny chance of a 10” version?
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March 29, 2022 at 7:13 pm #23995
123toid
KeymasterThe Build Plans are now available! https://bit.ly/audience212 Let me know if you have any questions!
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March 30, 2022 at 10:43 am #24003
schurter
ParticipantJust bought the plan’s,
Could window bracing work? 2″ thick add a 4th and have window bracing between as well,
Checking stock on parts
I might make the 40-44″ tall
Sikk Build !!
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March 30, 2022 at 1:47 pm #24008
123toid
KeymasterThanks! I’m really looking forward to seeing your build! You can definitely add more bracing if you’d like. Window bracing would be just fine. The only thing I would recommend is making sure that you have enough room behind the compression driver especially. That goes down pretty deep.
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March 30, 2022 at 2:55 pm #24014
schurter
ParticipantCan a depth of 11″ work ,
4cuft box , just adjust the hight ?
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March 30, 2022 at 10:29 pm #24023
mchockwy
ParticipantWhy am I not surprised to see you here 🤣🤣. These would look and sound amazing in your room!!
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March 30, 2022 at 10:34 pm #24025
123toid
KeymasterAssuming a double front baffle, I don’t see that as an issue. Just keep in mind you may not be able to get any bracing below the compression driver )I also don’t see any issue with this. But if you did want to brace it there, I would suggest two horizontal braces far enough off center it would allow the compression driver to sit in between them.
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March 30, 2022 at 6:23 pm #24018
norb
ParticipantCrazy question here. If I only want an f3 of 180hz, what would be the recommended box size? Sealed.
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March 30, 2022 at 10:31 pm #24024
123toid
Keymaster@Norb there is nothing silly about that questions. I agree with @tvor-ceasar that you are better off going with something like a 2.6 cubic foot or bigger box sealed. That will give you an F3 closer to 92 in room. However you can either use a digital or physical crossover to cross it at 180Hz.
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March 30, 2022 at 6:40 pm #24019
schurter
Participant180hz ???
4cuft sealed will be about 80/100hz
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March 30, 2022 at 8:51 pm #24022
tvor-ceasar
Moderator@Norb If you really must know, using the specified drivers, a sealed box around 0.325 Cu.Ft. will get you really close to 180Hz. The Q will be ~1.4, not the greatest for SQ. You’d be better off building a bigger box, lowering the Q and then using a crossover – passive or active – to get to the desired F3. Yes, it’d be much smaller, but It would be a serious challenge to get the required volume (that low) with all the driver/horn depth requirements. Plus you’d then need to put them on something to get the tweeter up to ear height.
Just thinking in the practical realm. If you want to join me in my Don Quixote escapades, then by all means go for it. You always learn best by doing. 😁👍
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March 31, 2022 at 8:33 am #24046
schurter
ParticipantAnother question lol,
Front baffle 14″
2nd baffle 16″ , would 3/4″ shim have a effect on the drivers ,
Or is there a spec, just looking for options to build the box
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March 31, 2022 at 12:24 pm #24052
123toid
KeymasterI am not sure I understand the question. Sorry. It might be since I am working off a few hours of sleep. But can you clarify?
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March 31, 2022 at 12:40 pm #24059
schurter
ParticipantI believe you side the box needs to be 14″ wide to keep the speakers happy ,
Can the 2nd baffle be wider ,
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March 31, 2022 at 12:45 pm #24062
schurter
ParticipantLike this, a stepped front baffle , but the 2nd would be 16″ wide vs 14″ so I can add more box volume
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March 31, 2022 at 2:48 pm #24067
123toid
KeymasterI understand now. You can do something like that if you want. It won’t hurt it if you just want to make it 16″ either. A few minor things will change (mainly diffraction and baffle step), but nothing that your room eq won’t take care of. Baffle step would only change by around 40hz and that would be a very minimal change in that region (maybe 1db).So that will be up to you. BUt I think if you did a nice 1″ chamfer it would look really nice.
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April 1, 2022 at 7:46 pm #24087
schurter
ParticipantAnother question
Did you use a 2nd or 3rd order BW
Dayton Audio 1.5mH 18 AWG Laminated Iron Core Inductor Crossover Coil is not in stock
Is There another option?
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April 1, 2022 at 7:57 pm #24088
schurter
Participant-
April 2, 2022 at 12:11 am #24092
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April 2, 2022 at 4:32 pm #24103
remy-alexander
ParticipantMad at you….been wanting something like this and I gave up waiting and built 6’s and the 10s now ya come out with these…Wifes going to kill me.
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April 3, 2022 at 8:51 am #24133
schurter
ParticipantBuild Thread started !!!
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April 8, 2022 at 1:53 pm #24316
pdube
ParticipantI bought the plans today. I understand that it’s pretty new but I’d wish to have more layouts diagrams for the cutouts. I’ll certainly manage but I’ll have to triple check everything.
Also there is no diagram for the speakon connector on the back. Maybe it does not matter too much but I think those little details are missing.
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April 8, 2022 at 2:20 pm #24320
123toid
KeymasterI’ll email you later about your other concerns. But as far as to speak on connector goes it can really go anywhere as long as it’s not in the way of a brace. I placed mine behind the compression driver because that’s where I placed the crossover. What if so if you have a specific spot where you want to place the crossover, I would put it near that location.
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April 13, 2022 at 2:35 pm #24450
pdube
ParticipantWhat about power handling?
I noticed one component is rated for max 250W. What if I had planned to use 500W amplifiers? Is there a risk that I blow the speakers or the crossover?
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April 13, 2022 at 4:05 pm #24453
123toid
KeymasterThat is dependant on a lot of things. But a 500w amplifier in a room setting should never come close to outputting 500w. These speakers are around 99db Efficient, which means you need very little power at all to make them very loud. Having said that I designed them around the assumption that most people wouldn’t be giving these around 300w. They are capable of up to 800w per speaker, assuming you are crossing them over by 40Hz. So part of power handling is up to you and your room.
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April 9, 2022 at 2:38 pm #24345
AJC
Participant@123toid – since you built these which use pro parts and get very loud, have you ever looked at a huge sub to pair with it like this: https://www.parts-express.com/Dayton-Audio-HTS545HE-4-21-Kraken-High-Excursion-Subwoofer-with-5-Voice-Coil-4-Ohm-295-054
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April 9, 2022 at 2:45 pm #24347
123toid
Keymaster@ajc9988 I have thought about it. And maybe someday. But honestly, that is probably way bigger than I would ever need. I have one mx15-22 and with the four 12’s it isn’t necessary to have anything else. Don’t get me wrong, you still want subwoofers with the Audience 212, but since these play full-range (in my room) they help pressurize the room. Which adding that SD, even not at high volumes (compared to the subwoofer) is an incredible increase. I have enjoyed it.
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April 9, 2022 at 2:56 pm #24352
AJC
ParticipantFair enough. This is a sub I have looked at to combine in a PA scenario with the 15″ B&C I’d like to get at some point.
Unfortunately, you can get loud or you can get low, but rarely both. The F3 I have for the design on the Kraken is 40.4Hz with a 3 cu. ft. enclosure (small considering the size of the driver), a 24″ slot port with 2.25″ height, split down the middle (so two ports in reality and what I entered into WinISD) giving 24.45″ length on the port. First port res. of 276.72Hz. The filters I put on are LR at 31.2Hz Highpass and Lowpass LR at 80Hz. That would get you a peak of 123dB@2000W.
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April 10, 2022 at 12:11 am #24358
123toid
KeymasterI think if I were to build something that big, I would end up doing a sealed. Then EQing what my room didn’t give me. Or do a linkwitz transform and end up with an anechoic response like this.
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April 9, 2022 at 2:54 pm #24351
schurter
ParticipantI have 5 devastators to help out mine 😁
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April 19, 2022 at 6:53 pm #24531
schurter
Participant-
April 22, 2022 at 1:51 am #24554
123toid
KeymasterThank you for showing me this. I think they are both good speakers and tuned similarly. I am friends with Ryan who designed the 1099’s. He is very talented and I really enjoy his work. In fact, I am still trying to get him back to designing, so we can come up with a fun design for people. But I am not sure that will happen any time soon (maybe never). But I do love collaborating with people.
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October 10, 2022 at 1:40 pm #26457
new2diy
ParticipantI’m new to the forum, been reading for months and impressed with what everyone is doing here. I realize that it’s been a few months, but I wanted to ask if there was any chance you would consider a version with a crossover tweak for a single 12″, running at 8 ohms, and a box at 3′ or so? Would still be extremely efficient, have a higher wife approval factor (smaller), move the horn closer to ear level, and not dealing with potential comb filtering issues from stacking 2 12s under the horn.
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October 10, 2022 at 11:05 pm #26464
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October 26, 2022 at 11:19 am #26563
Konnor Wright
ParticipantI was looking at the parts list on the plans for the Audience 212 and was quite confused when looking at crossover parts. I clicked on 4 ohm resistor and it took me to a 4.7 ohm resistor and when I clicked on 4.7 ohm resistor it took me to a 3 ohm resistor. Are the links taking me to the correct parts for the build or are they labeled wrong? The other links work correctly.
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October 29, 2022 at 9:36 pm #26578
123toid
KeymasterKonnor, I am sorry. Parts express ahs been changing their links and it has been messing with the ones in the plans. The values are correct, nto the links. If you send me your email, I’ll send you an updated set of plans with the correct links.
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November 30, 2022 at 12:01 am #26756
Brian
ParticipantI’ve been considering the 212’s for an LCR build and was curious how they might compare to Statement II’s or 1099/1299s? Also, I’d be interested in the potential for a matching surround/atmos setup. I love matchy-matchy and kind of hate that all the DIY options seem to be heavy on the LCR (obviously it is by far the most important) but they you are just left to…”you could try <insert unmatched option here>”.
All of that to say would it be best to stick with something like the Cinema 10, or is there a way to design a smaller, surround appropriate “matchy-matchy” option?
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December 1, 2022 at 11:08 pm #26777
123toid
KeymasterI am a big fan of the Cinema 10 for any type of surround use. It is literally what I am using in my own theater and wouldn’t go back to anything else. As far as how they would compare to the DIYSG speakers, I can’t say for sure, as I haven’t personally heard them. Having said that, Ryan, the designer of the 1099’s, and I are good friends. And I know without a doubt he is a top notch designer. So if you were interested in either of the builds, I think you would be very happy. Just keep in mind the 1099’s are not designed for bass (really none of them are). They are all designed to be high efficiency and clean sounding. They just do it differently. The SB Audience drivers are probably going to be considered better by most people then the ones used in the 1299’s and 1099’s, but that is about it. In short, most of this will come down to preference of design.
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December 26, 2022 at 5:42 am #26938
Tom
ParticipantIs the SB Audience Rosso 44cdn-pk neodynium much better than ferrite version? Ferrit version is about 1/3 cheaper…
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