can we use Fostex Horn tweeter for Cinema Theatre use? - diyAudio
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Old 15th January 2013, 07:28 PM   #1
diyAudio Member
Join Date: Aug 2012
Default can we use Fostex Horn tweeter for Cinema Theatre use?

can this be used for big cinema Theater Left Centre Right speakers?
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Old 15th January 2013, 09:05 PM   #2
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Join Date: Oct 2011
Hi, This can be used as a super tweeter crossed over above 8000 hz with a 1.5 mfd cap or so. You would do this if your speakers are not bright enough. This product would be a bad choice as the main high horns. Most theater systems use a crossover point of 500 Hz to 1250 Hz and need a heavy duty large format driver like EV DH1, JBL 2446, Radian 850, etc If the main hi horns are out just have these repaired. Bye, VECTORDJ
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Old 5th February 2013, 09:06 AM   #3
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Join Date: Feb 2013
Location: Connecticut
Vectordj is right on the money, the Fostex T90A is a supertweeter. If using a passive crossover, I'd choose a steeper slope than the 6db/oct a single cap provides. My preference is 24db/oct, but this takes many components to realize in passive. If using an active crossover, use a cap also, but choose one whose crossover frequency is below the intended crossover point, to serve as protection against mishaps. A tweeter such as the FostexT90, or the JBL 2402 does not have much tolerence for out of band signal.
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