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Old 24th February 2006, 07:52 AM   #1
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Default Tweak for the FE206E

Hi there.

I want to give a shot to the FE206E + T90A

I have front horns (squared 150hz tractix) with FE208EZ + T90A + JBL2226H for the low frequencies and this is really good.

I have to make a second pair of speakers and want to try the FE206E.

What I want to do to the FE206E is to remove the cone and also put phase plugs. But I wonder, if there is no cone, do we still need phase plugs ?

Why removing the cones ? I don't like full range speakers with cones I do prefer the treble of a great tweeter. Then we will lose some weight

Let me know if you have ever experienced this.

Thanks, Greg.
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Old 24th February 2006, 09:41 AM   #2
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I was also wondering how to increase the magnet power, because I will only use the speaker for mid frequencies.
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Old 24th February 2006, 03:28 PM   #3
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A couple thoughts, first, you do mean whizzer cone, right? As this only makes sense.

Second, the magnet on the FE206E is a beast. I wouldn't think you'd need to increase it and I've read this doesnt do much. But if you wanted to, I think you have to remove the cap from the back of the magnet and add the additional magnet. If you really want this, I'd consider the special edition FE206ES-R that's coming out shortly.

My ultimate solution? Use a different driver. The FE168E Sigma or even the FE108E Sigma don't use a whizzer and sound really good.

Hope that helps get things started.
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Old 24th February 2006, 07:59 PM   #4
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Hi

I have now FE168EZ in backhorn (D37) and FE208EZ in fronthorn.

I want to use only 8" + tweeter. So i will put a FE206E or another FE208Ez in front horn load.

The new FE206ES-R seems strange because the magnet is less powerfull than the regular FE206E from the datasheets.

And Yeah I want to remove the whizzer cone to transform the FE206E into a medium speaker. I don't think this is stupid.

But why don't I get another FE208EZ ? Just wanna try and compare a tweaked FE206E

Do you think I am stupid ?

Then when I'll have some money left, I will try the front horn with a Fertin

But I do think that a a FE206E without the whizzer cone and a phase plug would do a medium speaker with a fantastic value for the money.
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Old 25th February 2006, 01:18 AM   #5
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If you are determined to remove the whizzer cone on your Fe206e's why not then experiment with the zig zag style cut on the whizzer edge. Others have repoeted great success doing this. There is a chap on the full range forum who has done this along with some dope on the cone and whizzer. There is even a patent out on this treatment. Why not give it a try before you remove the whizzer? What have you got to loose? Regards Moray James.
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Old 25th February 2006, 01:46 AM   #6
Illusus is offline Illusus  Canada
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I have removed both the whizzer("cone") and the dustcap(replaced with phase plug) from a pair of FE166ES-R. I'm using them as mids with ribbons and 15" JBLs. Removing the whizzers brings out a ton(can you weigh magic? ) more midrange magic from these drivers, the increase in detail was most immmediately noticable to me. It's worth doing if you're planning on using tweeters.

Before you take the whizzers right off, please try the 'zig-zag' or star edge thing and report back with your observations. I'm sure there are others as curious as this guy to know the results but has no means to try it for himself.
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Old 25th February 2006, 06:18 AM   #7
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Thanks a lot for your replies.

Illusus this is great, this is exactly what I am planing to do and exactly the results I was expecting ! You had balls to perform this on an ES-R But maybe you knew this would rock.

Yeah I could do the zig-zag before but I have no Idea what this is.

The thing which sucks is the 300 hour break in !
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Old 26th February 2006, 11:04 PM   #8
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Illusus, at what point do you think you're drivers start to roll off? Is there a substantial difference from where these drivers were to what you are hearing now? One more, if you don't mind, did you first try the phase plug, and then the whizzer removal?

Thanks much.
(Sorry for the hijack)
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Old 27th February 2006, 05:01 AM   #9
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Good questions
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Old 27th February 2006, 05:11 AM   #10
CLS is offline CLS  Taiwan
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Funny enough, I've been thinking to do the opposite.

I've been using Oris 150 horn with Focal Audiom 7k for years. To high, it can extend to about 10kHz. Beyond that, a pair of Audax bullet tweeters are used.

I read somewhere on the net, someone added whizzer cones to his Focal mids & claimed good results. (sorry I lost the link)

About my own listening impressions on Lowther PM4A & some other fullrangers with whizzer cones, yes there is some interferences between main & whizzer cones, thus some colorations & obvious peak/dip around mid-high frenquency range. However, the "single point" source has its magic.

I use line stage 1st order HPF for my midrange , & 1st order passive xover on the tweeter (actually it's solely 1 cap). Also the physical positions of them are adjusted as well as I can. All these are for phase coherence & the least coloration.

But, to my ears, the mid+high combination can not match the fullranger with whizzer in the precious "coherence". Better coherence simply gives a "more real" feel. Especially when I listen to some simple recordings at low level. The tones, overtones, textures are so beautiful. The most important thing is, they are one. One realistic illusion in front of me.

Separate mid & high do have their strong points, though. Flatter frequency response, much better power handling, much cleaner on high SPL, especially on complex recordings. The single fullranger simply can not sustain its magic to some level of loudness & above.

Sadly, we can not have both.

Presently, I myself seldom have a chance to listen at "live level", so I miss the low level magic of those fullrangers, no matter they have whizzer or not. So I thought of the guy who added whizzers to his mids....

The mids were not cheap when I bought them, so I kind of hesitate to give it a shot.

Well, maybe a pair of new FE206 can cure my headache.

Any thought?
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