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oberton 12nsw600
oberton 12nsw600
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Old 2nd December 2019, 10:50 AM   #1
papasteack is offline papasteack  France
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Default oberton 12nsw600

Just to share measured at factory
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Old 2nd December 2019, 08:19 PM   #2
Brian Steele is offline Brian Steele  Grenada
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That's a pretty low Le for a 12" driver.

What's the Xmax like?
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Old 2nd December 2019, 09:02 PM   #3
papasteack is offline papasteack  France
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+/-14,5mm, but as always, it depend on your definition of xmax ^^
34mm voicecoil
11mm gap
Factory said there's really big and long aluminium demodulation rings.
12NSW600
In fact, i see it as a bms 12s305, with less cone resonnance, with a big triple roll surround that should help to go low. It's a new version with sandwich surround, as done with spiders, it's not in datasheet.
It is made on order, so it's somewhat a bit pricey, at 233 €.

Last edited by papasteack; 2nd December 2019 at 09:07 PM.
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Old 2nd December 2019, 09:28 PM   #4
ErnieM is offline ErnieM  United States
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I inquired about these a couple years ago. They were a bit much for me at the time. I do wonder about power compression with that kind of xmax and the power to reach it when tuned around 40hz. Had some issues with BMS in summer temps. All that aluminum should help though.

Wish they had U.S. presence. High quality looking stuff.
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Old 2nd December 2019, 10:20 PM   #5
papasteack is offline papasteack  France
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On russian forum :
"there were no speakers on the market that met these requirements. By trial and error (within 1 year, our 12 pieces flew to shreds first from 1000 watts, then from 2000 watts), we were finally able to get a 12NLC60V speaker, which passed the test F = 30-300Hz for 13 hours with an amplifier 5600W (half amplitude 300v from two amplifiers included in the bridge). In this case, Mms = 87.1 g., BL = 20.41 TM, BL / Mms = 234.31 TM / Kg."
12nlc60v is the old name of the 12nsw600 (as show in measurement done the 21.08.19 by oberton when asking measurement of 12nsw600).
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Old 3rd December 2019, 12:22 AM   #6
ErnieM is offline ErnieM  United States
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Thanks for the info! Sounds very encouraging for the development of small subs that are deceptively powerful.

Seems like they might be able to do custom impedance since they are built to order. I would like to use one with the large RAM audio 3-way plate amp. It provides 3000w into 4ohms at an undefined time spec. Want to use it as a full range compact prosound monitor. I already have a Beyma 8MC500 and Radian Neo745.
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Old 3rd December 2019, 02:41 AM   #7
ErnieM is offline ErnieM  United States
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Ran the sims again. 1500w is enough to pass xmax in a 1.5ft(42L) box tuned to 45hz with 3db eq boost below 100hz.

Kind of forgot about this driver. Now that there is a plate amp available to buy that meets the specs I wanted, I can make real good use out of these for a small footprint design. Ultimate small PA in a box for smaller situations.

Last edited by ErnieM; 3rd December 2019 at 02:54 AM.
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Old 3rd December 2019, 08:00 AM   #8
papasteack is offline papasteack  France
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From what i remind having readen (weird sentence, do it make sense ? ^^), -but my memory is not really reliable - the used amplifier for test in the russian forum linked has some specific protection feature
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Old 3rd December 2019, 11:29 AM   #9
ErnieM is offline ErnieM  United States
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*From what I remember reading* It got the point across. Way better than my non-existent French

I would run limiters as well. And maybe a nice low speed 200mm Noctua fan pointed at the motor structure vents for peace of mind and max long term output.
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