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Fostex FE167E Actual TS Parameters? - Click HERE for Original Thread
reikso2h
Hi,
I am just wondering what other people's experiences have been with the Fostex Fe167E driver. How close to the fostex published parameters are the actual parameters that you guys have measured?
Thanks.
Scottmoose
Passably. Vas is lower, overall Q a little higher.
Bob Brines
I haven't measured a 167 since the production went to China. They are still drop-ins for the original Japanese production, or was that Taiwanese. The speakers I build still match the model.

I did just measure a pair of 207.

Re 6.7
Fs 42
Qe .35
Qm 6.3
Qt .33
Vas 70 l
Le .85
BL 7.8

Bob
gmilitano
Hi Bob,

Is that a typo on Le? It seems too high for a FR.
Scottmoose
Just dug out the average parameters on the matched 167s I got from Dave this time last year. Note: this is fresh out of the box & with low voltage drivers so expect Fs & Qt to drop, & Vas to increase somewhat in practice, & with an hour or so to loosen them up.

Fs = 59Hz
Re 7.1ohms
Qm = 4.79
Qe = 0.45
Vas = 25.56 litre
Sd = 126.68 cm^2
Bl = 6.13
dB = 93
mms = 6.26g
reikso2h
thanks for the replies
very helpful

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