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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No need to flush mount the Fostex driver contrary to the ribbon tweeter that certainly must be to perform optimally. 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. Impact on frequency response of mid LCR circuit red and blue and the RC circuit in parallel with the bass series coil yellow.

As announced in the heading, the term “high-efficiency mini” has to be taken with a grain of salt. Due to the large magnet, it needs space to breathe. I’ll try this later. The speaker handles female vocals very well. Individual and summed response of drivers through crossover and response from inverting tweeter yellow.

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.

Fostex FE126En Fullrange Speaker Driver Transducer

Fostec response again from 2. Driver placement on baffle. I’ve tried cross-calculation on the Fostex data right and something juts doesn’t fit. I like the way it handles vocals and most importantly, piano. However, placed on a bookshelf, some room gain is achieved a more balanced presentation is possible.


Well, from Fs to 5 kHz it really does look good, but the peak at 6. Point of crossover is 12e6n little above 3. At least it seems we can agree on one thing: A 80 x mm board will take all the components and fit into the rear part of the PE cabinets, that is if As 126ne the W11XT miniI have to warn that 64 square centimetres of membrane, do not – and should not – move a lot of air.

This looks really good. Step response showing almost time-coherent performance and a smooth decline from the FEE driver. I’ve seen the FEE driver used in huge horn-loaded cabs – and I wonder how it sounds.

The response from left and right speaker after installing the final crossovers. CSD of final set-up. flstex

After finalising the crossovers and having the fostdx driven by 20 watt PSE triode amps, I have to say I’m positivily surprised by these tiny Fostex driver. Subjectively it has a nice bass presentation, but it doesn’t go deep. Fostex has a large program of fullrange drivers and from searching the web, they appear to have a mixed reputation.

Fostex frequency response and impedance profile. No big surprises in the crossover layout. It would be much too bright. Frequency response again and port response blue. These drivers can do things few other drivers can do. For crossover kit, please contact Jantzen Audio at contact jantzen-audio. Can be glued in place after fixing the crossover board to the side panel. For better or for worse. Don’t play them excessively loud, because they can’t.

Fostex FEEn Fullrange Speaker Driver (Transducer)

The FE driver Fostex frequency response and impedance profile. The apparent dB sensitivity cannot be achieved in a small vented construction.


Cross-calculation on own data looks fine, but Mms is significantly higher and Qt fortunately much higher making a vented cabinet more appropriate. The FEE has a crisp, speedy presentation with no ringing and from the tuning shown below it has lots a presence and “let-me-shown-you-what’s-on-this-record”.

Fostex FE126En 120mm 8 Ohm Full Range driver

Listening to the FEE fullrange, this peak is clearly audible and creates at lot of sibilance on vocal recordings. 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. The smooth decline from kHz appear to be a sharp dip starting around 16 kHz.

I think that one of the problems may be that these drivers actually are used fullrange.

Fostex FEEn mm 8 Ohm Full Range driver | Hifi Collective

Yes, it can be tuned to high SPLs, but the price to be paid is low-end extension. The minor peak at 5 kHz is the leftover from the FEE peak, damped by the 0. Now, comparing manufacturer’s frequency response data with real-world measurements is always fun – or sad – 126eb quite often we’re presented a lot of dreamwork and it takes some decent smoothing to create the graph from Fostex.

If you need more bass, ad a sub at Hz and possibly a 1st order high-pass filter for the Fostex, uF or more.