Fostex Speaker Model. Part Number. ” FULL RANGE, FFK. • ” FULL RANGE • KENAF paper/ fiber composite cone • Foam surround • 94db sensitivity. Features. ♢mm ( in) cone type full range. ♢8 ohm impedance. ♢fo to17kHz frequency response. ♢94dB sensitivity at 1W/1m (ft). ♢kg ( lb) net. I’m planning to use a Fostex FFK as mid/high driver together with a Fostex tweeter and Beyma woofer. Active x-over between de Beyma.
|Published (Last):||2 December 2014|
|PDF File Size:||20.39 Mb|
|ePub File Size:||1.65 Mb|
|Price:||Free* [*Free Regsitration Required]|
These drivers love DHTriodes. Magnetically shielded, they also make great computer speakers. I am currently listening through some Emotive Audio b monoblocks which have killer power supplies and now the faults I had attributed to the drivers like have seemingly vanished.
As pointed out before, it appears that the high-efficiency drivers make the most out of a current source ff1665k here we don’t see any particular advantage.
But in my TQWT they sound excellent. I would have assumed that the FEE Sigma was intended to be a direct replacement for the FEE, but the mid vostex top end make me rethink that.
They work well in my 8. The FE series uses ‘whizzer’ cones to good effect and the FF series uses an aluminum center. The FEE seems to have a somewhat more “forward” presentation, with tighter bass a plus and some minor “shout” in the midrange a minus.
Hi Jay Sounds like my experience. You’ll notice here that the response curves are extremely similar. I got the FEE in the mail late in the week. I’ve never seen a real curve of the LE 8 and I don’t remember that much about their top end.
The other horn cabinet was running my FFK which has been broken in for a month, I can’t figure out what the FE Sigmas are doing but they look cool. Of course, this could be dependent on a less-than-optimal match with the backhorn, but I suspect it also has to do with the driver’s higher Qts.
The FEE has maybe just a tad less bass but the FFK has been broken in for some time now and has also had some damping material wrapped around its ribs to absorb nasty reflections. The reason I when for the E is because I didn’t want to lot fowtex money on my first Single Driver atempt.
I have also noticed that these drivers are very sensitive to impedence match of the amp, and possibly the kind of amp as well. Really looking forward to some big time fun. Posted by zobsky yahoo.
Stock, it lacks some treble but this is easily improved upon. The ‘wooly’ bass response may be due to overly damping the horn throat, although too little may result in a midrange peak. Anyway, if you looking for a cheap way to get in to single driver than Fostex is the best way to go.
Hope this helps, Marco. They do have a tendancy to ‘shout’ if not properly implimented. Dostex difference is quite startling. I notice that Fostex seems to have three approaches for getting full-range performance in the treble. Audio Asylum Thread Printer Get a view of an entire thread on one page.
The 4KHz peak of the uncorrected driver is easily taken care off and it’s pretty inoffensive. I like the Jordan so much I stuck it in here anyway as a fine counter example. Well, not the same as what you have in mind. They sounded ok with ofstex watt Sonus Faber amp but they love chip amps like 47 Labs Gaincard.
I popped one of them in one of my cabs to do an A-B. The size and shape of the chamber directly behind the driver will help in this regard. 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.
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 hooked up a 4 ohm SS amp and they were DOA, but with a amp with 8 ohm output, they were lively and nice. We hope to see you at VSAC, since we have something [cool] to show you. I was going to go with the 8″ Fostex but I don’t want bigger box and the 6.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.