FE208E Sigma with T90A cap value recommended

KnyazHM · 20th December 2010, 07:26 AM

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?

planet10 · 20th December 2010, 07:34 AM

More likely just taking into account the higher efficiency of the tweeter.

dave

Godzilla · 20th December 2010, 07:34 PM

>>> 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.

Scottmoose · 08:04 PM

Perhaps more pertinently, do you like the sound you have? If you do, I wouldn't worry about it too much.

hm · 20th December 2010, 08:59 PM

Hello,
one solution would be,
forgot the tweeter,
and take a parallel LCR filter between 2 and 8 kHz for the 208.

20th December 2010, 07:26 AM	#1
KnyazHM diyAudio Member Join Date: Nov 2009	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?

20th December 2010, 07:34 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	More likely just taking into account the higher efficiency of the tweeter. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

20th December 2010, 07:34 PM	#3
Godzilla diyAudio Member Join Date: Nov 2005 Location: New York	>>> 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. __________________ www.zillaaudio.com/bib/bib.asp www.ZillaAudio.com

20th December 2010, 07:37 PM	#4
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	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.

20th December 2010, 08:59 PM	#5
hm diyAudio Member Join Date: Feb 2004 Location: near Hamburg Germany	Hello, one solution would be, forgot the tweeter, and take a parallel LCR filter between 2 and 8 kHz for the 208. __________________ http://www.hm-moreart.de


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