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AR15: mystery woofer - woofer replacement - crossover


338(h)(10)

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On 3/27/2019 at 12:16 PM, Pete B said:

I've been wondering lately if this EPI/Genesis woofer replacement would work well

as a replacement for the AR 8" woofer:

http://www.humanspeakers.com/e/parts/001.htm

I also wonder how close they are to the original woofers from EPI.

if I were buying new, that's the one I'd gravitate towards....

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2 hours ago, michiganpat said:

if I were buying new, that's the one I'd gravitate towards....

I seem to remember Huw Powell being pretty helpful. Maybe ask his advice. http://www.humanspeakers.com/contact.htm

-Kent

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On 4/8/2019 at 6:17 PM, JKent said:

I seem to remember Huw Powell being pretty helpful. Maybe ask his advice. http://www.humanspeakers.com/contact.htm

-Kent

my biggest reason for leaning towards this route is these woofers are designed very similar to the AR woofer: acoustic suspension mounting and natural rolloff w/o any sort of crossover....looking through 8" woofers at parts express, a lot of the higher ones, the T-S parameters lend themselves much more towards vented designs, or the Qts is so high (>1) that you'll end up with a sharp bump in response and fast fall off on the low end, and a lot of them have a response peak at 3-4khz instead of a smooth roll off at 2khz that will require at least a coil to tame...

the Oaktron by MISCO are intreguing (and I believe made in the USA), but their T-S parameter lend more towards vented designs, I feel...

https://store.miscospeakers.com/products/find-oaktron-high-quality-speakers?size=94

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The 8" lower midrange (200045/210045) for the AR-9Ls, 9Lsi, 98Ls & 98Lsi may also be worth considering as a substitution for the 200001.  The spec for the 200001 calls for a measured DC resistance of 5.0 ohms +/- 10%.  I measured the resistance of spares I have of both 200045 and the 210045 and they all fell between 4.6 ohms and 4.8 ohms, which falls within the 200001 spec. 

  

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  • 2 years later...
On 3/27/2019 at 9:57 AM, 338(h)(10) said:

And how about these? Said to be "AR" woofers good for AR17 (so AR15 should be in the same ballpark). 

https://www.simplyspeakers.com/advent-acoustic-research-replacement-woofer-1210132.html

Any other experiences w/ this woofer in a ar-15 system?

 

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