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Old 27th June 2008, 11:20 PM   #1
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Default Fostex FE167E Actual TS Parameters?

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.
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Old 28th June 2008, 08:57 AM   #2
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Passably. Vas is lower, overall Q a little higher.
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Old 28th June 2008, 02:04 PM   #3
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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
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Old 28th June 2008, 02:42 PM   #4
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Hi Bob,

Is that a typo on Le? It seems too high for a FR.
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Old 28th June 2008, 02:45 PM   #5
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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
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Old 28th June 2008, 09:27 PM   #6
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thanks for the replies
very helpful
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