Is there a OTOP 212 and what's the loudest neo woofer?

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djlivex
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Is there a OTOP 212 and what's the loudest neo woofer?

#1 Post by djlivex » Sun Apr 04, 2021 5:00 pm

Just curious if anyone has built an OTOP 212 and what's the loudest woofer in neo 12" to use? Thanks :idea:
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Bruce Weldy
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Re: Is there a OTOP 212 and what's the loudest neo woofer?

#2 Post by Bruce Weldy » Sun Apr 04, 2021 7:15 pm

I remember someone having some of those several years ago. The 3012HO would be the loudest of the suggested speakers I would think.

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
2 - XF210


"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."

Grant Bunter
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Re: Is there a OTOP 212 and what's the loudest neo woofer?

#3 Post by Grant Bunter » Mon Apr 05, 2021 2:42 am

Most people would build 2 x standard Otop12's (per side for example) rather than 1 x 212.
There's a host of reasons for that. A single Otop12 is more manageable with 1 person, scale able, and doesn't require any thought about impedance manipulation per side power amp wise if you ended up using 2 x 212 cabs a side (ie a 2 ohm/channel stable amp).
Also, you probably don't want or need a 212 with an entire melded array, and I'm not sure you could do half melded half flat in 1 cab.

Bruce has it nailed I think, the loudest driver would be the 3012HO...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 3 with melded array.
Bunter's Audio and Lighting "like"s would be most appreciated...

djlivex
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Location: Tampa, FL

Re: Is there a OTOP 212 and what's the loudest neo woofer?

#4 Post by djlivex » Tue Apr 06, 2021 9:31 am

Thanks guys so there is such a set of plans from Bill double horn loaded Otop 212? Just for planning purposes, and yes scalability is first and foremost 212.
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Bruce Weldy
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Re: Is there a OTOP 212 and what's the loudest neo woofer?

#5 Post by Bruce Weldy » Tue Apr 06, 2021 9:36 am

The 2x12 is included with the regular OTop12 plans

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
2 - XF210


"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."

djlivex
Posts: 525
Joined: Thu Dec 17, 2009 7:34 pm
Location: Tampa, FL

Re: Is there a OTOP 212 and what's the loudest neo woofer?

#6 Post by djlivex » Tue Apr 06, 2021 8:02 pm

Thanks Bruce, when I built the Omni 12 TB loaded with Kappalite 12 LF, I was amazed at how low it sounded in the cab and it is my main DJ speakers when doing parties. I was skeptical about Eminence but now I am a big fan. Now to order the plans thanks guys.
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djlivex
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Re: Is there a OTOP 212 and what's the loudest neo woofer?

#7 Post by djlivex » Wed Apr 07, 2021 10:25 am

How do I open skp from the plans sent by Bill? I have MacBook pro do I have to call Apple? LOL Thanks
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Seth
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Re: Is there a OTOP 212 and what's the loudest neo woofer?

#8 Post by Seth » Wed Apr 07, 2021 10:58 am

djlivex wrote:
Wed Apr 07, 2021 10:25 am
How do I open skp from the plans sent by Bill? I have MacBook pro do I have to call Apple? LOL Thanks
https://www.sketchup.com/products/sketc ... /downloads
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

djlivex
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Joined: Thu Dec 17, 2009 7:34 pm
Location: Tampa, FL

Re: Is there a OTOP 212 and what's the loudest neo woofer?

#9 Post by djlivex » Wed Apr 07, 2021 7:09 pm

I was able to open sketchup, and saw the 212 but no measurements. Is there a way of getting the measurements? Are there other companies or individuals doing cnc on this particular model? Thanks
Last edited by djlivex on Wed Apr 07, 2021 8:52 pm, edited 1 time in total.
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Seth
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Re: Is there a OTOP 212 and what's the loudest neo woofer?

#10 Post by Seth » Wed Apr 07, 2021 7:18 pm

djlivex wrote:
Wed Apr 07, 2021 7:09 pm
I was able to open sketches, and saw the 212 but no measurements. Is there a way of getting the measurements? Are there other companies or individuals doing cnc on this particular model? Thanks
The link I gave you is for the Sketchup "viewer", it doesn't have the measuring tool. You can just sign up for the free version of Sketchup, which is different than the viewer application and is web based and accessible from any browser platform (IIRC). The free version has the measuring tool. Otherwise, the measurements are in the plans. Did you get the PDF version of the plans?
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

himhimself
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Location: Bloomington IN

Re: Is there a OTOP 212 and what's the loudest neo woofer?

#11 Post by himhimself » Wed Apr 07, 2021 8:05 pm

Between the notes in the plans and the sketchup model, it's covered. I'd go with two 1x12" to have options. Well, I guess I actually did :-) You can always just stack them on top of each other for a 2x12, but you can also split them for stereo PA, or use a single when space is tight.
2xT30 (20", 3012LF)
2xT30 (21", 3012LF)
4xOtop J-array (Beta12, melded/straight piezos)
Truck Tuba (MCM)
Next up: 2xJack12 or family of table tubas

djlivex
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Location: Tampa, FL

Re: Is there a OTOP 212 and what's the loudest neo woofer?

#12 Post by djlivex » Wed Apr 07, 2021 8:57 pm

Yes Seth I got the pdf, thanks
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