No enclosure is going to quesl the Fostex "schreeeech" these have.
That bad? Ouch! Sounds like how I feel about the FE126. I bought a pair many years ago, played them for a half hour at most and put them back in their boxes. I felt the same way, nothing would cure that sound. (I may well be in the minority however as they seem to have been very popular).
I got the Nessie suggestion via some Japanese brothers in Audio. Apparently the resonant pipe is the preferred enclosure for the 138 ES-R.
The FE126 problem is mostly curable. Th eissues with the FE138 are WAY worse, and no one has gotten a set into Bud's hands yet to see if they can be remedied.
A beautiful looking driver thou.
dave
A beautiful looking driver thou.
dave
I had to get the data from scott again -- an "accident" with some powerful magnets caused some "problems" with my laptop drive...
Here is the quick & nasty drawing...
dave
Hi Dave,
I am still struggling a bit with the sound from the 138ES. I want to try it out in the horn design you posted but wanted to check if this is the "final" version. Is it? If you have any other horn recommendation in this size range for the 138ES I would love to hear that as well!
Currently I have it in a miniature horn enclosure with a AM-20 supporting the treble, and a couple of notch filters to correct the worst bits. Putting the speaker a bit higher and mellowing out the horn response should help.

The FE138 was a dissappointment… it brought the screech to the Fostex Shout.
Have yours caled down?
I cannpt recall an FE138 box… clues?
We did put it in FH3 where the bass was superb, might be even better in FHXL.
A larger horn would need to be done, something between Valiant and Victor. Very, very little demand for that tho.
dave
Have yours caled down?
I cannpt recall an FE138 box… clues?
We did put it in FH3 where the bass was superb, might be even better in FHXL.
A larger horn would need to be done, something between Valiant and Victor. Very, very little demand for that tho.
dave
View attachment 999553
The design you posted is above, sorry for not being more clear! The FH3 is bit too large for WAF.
I have the FE138-ESR on a Marantz SR6006 with DSP, that is helping getting rid of the screech. I still have not given up on the speaker…
The design you posted is above, sorry for not being more clear! The FH3 is bit too large for WAF.
I have the FE138-ESR on a Marantz SR6006 with DSP, that is helping getting rid of the screech. I still have not given up on the speaker…
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