FOSTEX FE 208 SIGMA PDF

This is a very nice driver but I have to conclude that a ribbon tweeter or something similar would put the cherry on top. Taken alone, it rolls off a bit much for my taste. The 4KHz peak of the uncorrected driver is easily taken care off and it's pretty inoffensive. Stock, it lacks some treble but this is easily improved upon. I notice that Fostex seems to have three approaches for getting full-range performance in the treble.

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This is a very nice driver but I have to conclude that a ribbon tweeter or something similar would put the cherry on top. Taken alone, it rolls off a bit much for my taste. The 4KHz peak of the uncorrected driver is easily taken care off and it's pretty inoffensive. Stock, it lacks some treble but this is easily improved upon. I notice that Fostex seems to have three approaches for getting full-range performance in the treble.

The FE series uses 'whizzer' cones to good effect and the FF series uses an aluminum center. I can't figure out what the FE Sigmas are doing but they look cool.

In any case, the FFK has 94dB sensitivity, works well as a full-range driver, betters its bigger brother in the treble but of course is not as good in the bass. I've never seen a real curve of the LE 8 and I don't remember that much about their top end. This one, however, needs some kind of tweeter and while I think the real maximum excursion is bigger than the spec, I would treat it gently with the "Jurassic Park" sound track.

It has 96dB sensitivity and if you bring in a good tweeter, maybe a nice ribbon above 5K, I think you'll really have something. It excels at one very difficult thing - to still sound good after the honeymoon is over.

Magnetically shielded, they also make great computer speakers. You'll notice here that the response curves are extremely similar. As pointed out before, it appears that the high-efficiency drivers make the most out of a current source and here we don't see any particular advantage. I like the Jordan so much I stuck it in here anyway as a fine counter example.

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How about FE and a supertweeter? Which cabinet is the best for this driver? I have seen plans of Jericho horn and they look promissing. Thanks, Jan. It's either-or. I'm using FEE's in front loaded horns - they seem a little lacking in the highs - however, it is common in FL horns to have drooping response in the highs - and Larry Moore and Dave Auckerman think the FEE gives excellent high end response in their horns - which are parabolic whereas mine are LeCleac'h flare. The reason I'm saying this, is I think I will probably wind up with PM5A's in my horns designed to counter the drooping top end in front horns and will build the FEE cabinets that are similar and use them for surrounds.

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