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Old 17th November 2012, 02:06 PM   #1
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Default Fostex FE 126 En

I have built a rear loaded horn using the Fostex 166 En driver and am extremely satisfied with the performance. I am now contemplating building another horn using the Fostex FE 126 En. Can anyone in this forum comment on the performance and the bass response of the 126 En drivers?
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Old 17th November 2012, 05:10 PM   #2
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Well I can give you my thoughts on the Fostex Fe126en drivers. I have had them almost a year. I have had them playing in a box untreaded and then treated. I treated the cones and then the basket and magnet. The drivers are so good a voices. The bass is as go as it gets for a 4.5 inch fullrange driver for its price range. I have compaired the fostex fe126en next to the Fe108ez drivers. The Fe108ez drivers are better by night and day and I left the cones and basket normal. Now on the fe102en drivers their higher range I know tend to be soft on cymbles and bells and other sounds past 10khz. I have the ff125wk dirvers and to me they do everything the fe126en does but, are better past 10khz and cymbles and bells sound more upclose and not so far away and soft sounding. The fe126en has a better midrange in terms of voices and the liver sound. The ff125wk has a natural and relaxled sound. They say the ff125wk goes deeper and has more xmax but ,I really don't know? I can say this I have not built fostexs horn box for these drivers but, a coner loaded horn box. I also built a book shelf bass reflex front ported box. Then I spent a while rebuilding a trapazoid box for these drivers and it was all I was hoping for and more. Now I took the fe126en out and I put in the ff125wk not treated but, just as they came from fostex. Very nice alround drivers.

Here is a post I posted awhile back with pictures of the boxes I did for the ff125wk and then the fe126en drivers painted back.
taming harshness of fostex FF125WK It's is the 9th post down. If you need info I can give you box size. Cheers jm.
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Old 17th November 2012, 05:27 PM   #3
zman01 is offline zman01  Bangladesh
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satyakibanerjee,

No personal experience with the FE126en - but many folks are happy with these in the Frugel Horn Mk3 - you can look up the FH MK3 threads for more listening impressions.
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Old 17th November 2012, 06:12 PM   #4
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My advice would be to look at the frequency response on the data sheet, and see if that's what you're looking for.
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Old 18th November 2012, 12:51 AM   #5
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Quote:
Originally Posted by rjbond3rd View Post
My advice would be to look at the frequency response on the data sheet, and see if that's what you're looking for.

Yes good point but, I would trust my ears over a data sheet any time. They can be misleading like with me in the past. Jm
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Old 18th November 2012, 01:13 AM   #6
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Understood. Assuming the goal is a flat response at the listening position(s), life tends to be easier with a flatter response over a peaky response, even if that measurement doesn't reflect the ultimate listening environment.

I'd rather sacrifice bass and gain a smoother response, although it's interesting that on a few Fostex, you can actually have both (but for more money).
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Old 18th November 2012, 11:43 PM   #7
haddar is offline haddar  Europe
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I wouldn’t waste my time on 4” drivers and beside you have Fe166en so what would be the point.

And only cheap Fostex drivers if you are starting with low power tube amps.
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Old 19th November 2012, 12:56 AM   #8
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Quote:
Originally Posted by haddar View Post
I wouldn’t waste my time on 4” drivers and beside you have Fe166en so what would be the point.
Why would you bother? Because FE126 does a lot of things better than FE166 -- the main advantage of the 166 over 126 -- bigger cone, more bass. Thru the critical midrange,andon the top the smaller driver has an edge.

I even pick FE126eN^2 (in FH3) over FE166eSReN (in Victor) for most listening.

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Old 19th November 2012, 04:23 AM   #9
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Thanks everyone for your feedback. The response of naturalsound and planet 10 are most appreciated. Midrange finesse is a higher priority than the bass response, though I was wondering how must bass extension a small size driver would provide. I will lock down on the 126 En for the next speaker I am building using a self designed BLH enclosure.

The Fostex 166 En in the Haruna BLH design are paired with a 2A3 SET and the overall performance is wholesome and engaging. The bass response of this enclosure design is remarkable.
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Old 19th November 2012, 01:19 PM   #10
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Quote:
Originally Posted by haddar View Post
I wouldn’t waste my time on 4” drivers and beside you have Fe166en so what would be the point.
In the Fostex world, the FE83En, FE103En, FE126En, FE166En and FE206En (and some others) are more or less a "family" and the bigger drivers have better bass, while the smaller drivers tend to have better, smoother, flatter treble with better dispersion (less beaming).

Also as you go up in size, you get better sensitivity. So within that part of the Fostex family, the trade-off is roughly: how much bass do you need, vs. treble smoothness and dispersion, with what sensitivity?
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