Buy Fostex FEEn ” Full Range Speaker: Speakers – ✓ FREE DELIVERY possible on eligible purchases. Fostex FEEn mm 8 Ohm Full Range driver. The Fostex FEEn is a mm (“) 8 ohm, 45 watt, full range driver that features an mm strong ferrite. I have had the FE en drivers for almost a year in and out of the same If fostex could make a driver with the FE and the FF series together I.

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Listening to the FEE fullrange, this peak is clearly audible and creates at lot of sibilance on vocal recordings.

Fostex FE126En 120mm 8 Ohm Full Range driver

I would have been highly surprised if the FEE had looked as good as claimed because we’re so used to manipulated marketing frequency response graphs. A midrange notch filter is needed to smooth the Hz range and the bass series coil is paralleled by an RC circuit further reducing the 7 kHz peak. Here we have the crossover board well away from the driver tostex. The apparent dB sensitivity cannot be achieved in a small vented construction.

Fostex FEEn mm 8 Ohm Full Range driver | Hifi Collective

Cross-calculation on own data looks fine, but Mms is significantly higher and Qt fortunately much higher making a vented cabinet more appropriate. The smooth decline from kHz appear to be a sharp dip starting around 16 kHz.

Fostex frequency response and impedance profile. I add two rubber strips under the board and fasten it with two screws. Fostex has a large 1126en of fullrange drivers fotex from searching the web, they appear to have a mixed reputation. The FE driver Fostex frequency response and impedance profile. As announced in the heading, the term “high-efficiency mini” has to be taken with a grain of salt.


The response from left and right speaker after installing the final crossovers.

Don’t play them excessively loud, because they can’t. The speaker handles female vocals very well. Subjectively it has a nice bass presentation, but it doesn’t go deep. No need to flush mount the Fostex driver contrary to the ribbon tweeter that certainly must be to perform optimally.

Lightweight paper cones and large magnets strongly indicate we’re into a special corner of hifi where opinions easily divide into anything from praise to rejection. It would be much too bright. Drivers in this category often have a dB rise in response towards higher frequences and the use of a whizzer cone on some of the drivers may produce a harsh beaming treble.

They have a crisp and vivid presentation and there’s enough bass to get a good idea of what is happening in the lower end of the spectrum.

The FEE has a crisp, speedy presentation with no ringing and from the tuning shown below it fotex lots a presence and “let-me-shown-you-what’s-on-this-record”. No big surprises in the crossover layout. Fostex FEE fullrange drivers. I think that one of the problems may be that these drivers actually are used fullrange. Driver placement on baffle.

If tostex need more bass, ad a sub at Hz and possibly a 1st order high-pass filter for the Fostex, uF or more. Impact on frequency response of mid LCR circuit red and blue and the RC circuit in parallel with the bass series coil yellow. Well, from Fs to 5 kHz it really does look good, but rostex peak at 6. Yes, it can be tuned to high SPLs, but the price to be paid is low-end extension.


Point of crossover is a little above 3. As for the W11XT miniI have to warn that 64 square centimetres foxtex membrane, do not – and should not – move a lot of air. Do not forget to chamfer well around the FE driver hole. The minor peak at 5 kHz is the leftover from the FEE peak, damped fostx the 0. Step response showing almost time-coherent performance and a smooth decline from the FEE driver.

Fostex FEEn Fullrange Speaker Driver (Transducer)

CSD of final set-up. Can be glued in place after fixing the crossover board to the side panel. All technical questions at troels. Due to the fostwx magnet, it needs space to breathe. I’ll try this later.

Fostex FE126En Fullrange Speaker Driver Transducer

Now, comparing manufacturer’s frequency response data with real-world measurements is always fun – or sad – because quite often we’re presented a lot of dreamwork and it takes some decent smoothing to create the graph from Fostex.

For better or for worse.

This looks really good. Frequency response again from 2. These drivers can do things few 126eb drivers can do. Frequency response again and port response blue. At least it seems we can agree on one thing: However, placed on a bookshelf, some room gain is achieved a more balanced presentation is possible. After finalising the crossovers and having the speakers driven by 20 watt PSE triode amps, I have to say I’m positivily surprised by these tiny Fostex driver.

For crossover kit, please contact Jantzen Audio at fosex jantzen-audio.