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FE208E Sigma with T90A cap value recommended
FE208E Sigma with T90A cap value recommended
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Old 20th December 2010, 07:26 AM   #1
KnyazHM is offline KnyazHM  Russian Federation
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FE208E Sigma with T90A cap value recommended
Question FE208E Sigma with T90A cap value recommended

I currently have a FE208EZ BLH and T90A supertweeters. I am using the recommended cap value of 1 uF. Is this recommendation by Fostex overly optimistic as to the range of the FE208EZ?
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Old 20th December 2010, 07:34 AM   #2
planet10 is offline planet10  Canada
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FE208E Sigma with T90A cap value recommended
More likely just taking into account the higher efficiency of the tweeter.

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Old 20th December 2010, 07:34 PM   #3
Godzilla is offline Godzilla  United States
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>>> Is this recommendation by Fostex overly optimistic as to the range of the FE208EZ?

The 1uf cap is gradually rolling the tweeters response into the main driver at 6db per octave. I've not heard this combination of drivers but i'd expect them to work together very well. If you feel there's too much treble reduce the cap size. If you feel there is too little treble increase the cap size.
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Old 20th December 2010, 07:37 PM   #4
Scottmoose is offline Scottmoose  United Kingdom
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Perhaps more pertinently, do you like the sound you have? If you do, I wouldn't worry about it too much.

Last edited by Scottmoose; 20th December 2010 at 08:04 PM.
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Old 20th December 2010, 08:59 PM   #5
hm is offline hm  Europe
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Hello,
one solution would be,
forgot the tweeter,
and take a parallel LCR filter between 2 and 8 kHz for the 208.
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