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Old 27th August 2010, 06:52 PM   #1
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Default Stuff BR Box FE126e?

I'm doing the BR recommended design, do I stuff with fill, line with insulation, or do nothing?



https://www.madisound.com/pdf/fostex...e126e_encl.pdf
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Old 27th August 2010, 07:15 PM   #2
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The hybrid or the BR? We were very dissatisfied with the performance of our build of the hybrid.

The little BR looks to be a non-starter (at least for me) ... sim below

With either of these you are going to be looking for bass support. Once you factor in bass support, you might as well use the FE126 sealed...

dave
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File Type: gif FE126-factoryBR-sim.gif (12.5 KB, 219 views)
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Old 27th August 2010, 07:17 PM   #3
chrisb is offline chrisb  Canada
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Quote:
Originally Posted by DreadPirate View Post
I'm doing the BR recommended design, do I stuff with fill, line with insulation, or do nothing?



https://www.madisound.com/pdf/fostex...e126e_encl.pdf

If you haven't already cut material for these enclosures, and unless really constrained by space, you might want to reconsider.

I built a pair of these several years ago (for previous FE126E), and as with several of Fostex's "recommended" designs, they were quite underwhelming to say the least. Two public domain designs that I know work very well are the Buschhorn MkI modified to fit larger driver, and the latest generation of Frugel-Horn.



edit:

we don't always finish each others ....
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Last edited by chrisb; 27th August 2010 at 07:39 PM.
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Old 27th August 2010, 07:37 PM   #4
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>>> Once you factor in bass support, you might as well use the FE126 sealed...

I agree. Thanks for the sim! Lots of better cabs for this driver. I actually like the idea of sealed with bass support.

Zilla
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Old 27th August 2010, 07:53 PM   #5
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Good call. Or even a small front horn / waveguide + bass units.
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Old 27th August 2010, 07:57 PM   #6
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I do have this sub available:

Amazon.com: Sony SA-WM250 100-Watt Active Subwoofer: Electronics

What sized sealed box, same?

I'm just looking for something quick and easy to make to see what FRers are all about. I will go deeper into a horn type build later with this or another pricier driver.
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Old 27th August 2010, 08:31 PM   #7
chrisb is offline chrisb  Canada
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Quote:
Originally Posted by DreadPirate View Post
I do have this sub available:

Amazon.com: Sony SA-WM250 100-Watt Active Subwoofer: Electronics

What sized sealed box, same?

I'm just looking for something quick and easy to make to see what FRers are all about. I will go deeper into a horn type build later with this or another pricier driver.

probably anywhere from 8-13 liters would be fine

if new, make sure the drivers have a thorough break-in before finalizing XO settings on the sub and any additional EQ / filtering on the wide-bands


and you don't necessarily need to get spendier than this driver to get musically satisfying results
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Old 27th August 2010, 09:39 PM   #8
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Quote:
Originally Posted by DreadPirate View Post
I do have this sub available:

What sized sealed box, same?
With an 8" driver the woofer probably goes high enuff. Ideally you would need 2 woofers. A 1.5 litre box for the FE126 gives a butterworth rolloff with a crossover point of 200 Hz.

dave
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Old 27th August 2010, 10:01 PM   #9
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There's the Voigt pipes, that I'm building.

http://www.diyaudio.com/forums/attac...e-ml-voigt.gif

Nice and small, I heard them at a meet, and it was fantastic.
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Old 27th August 2010, 10:04 PM   #10
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...but pointless if high-passed as you might as well have a sealed box.
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