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Old 15th December 2006, 01:48 AM   #1
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Default crossover advice please

Hi guys,

What do you think of using a 2th order Linkwitz-Riley at 2200Hz. That way, I'm 2 octaves over the tweeter Fs(550) and a little more then 1 octave under the point where the drive SPL start to decrease(5000Hz) ? I plan to use a tweeter L-pad and a EQ for the driver to remove the impedance spike around 4kHz and 5kHz.

Vifa driver specs
http://www.madisound.com/pdf/vifa/pl18wo09-08e.pdf

SEAS tweeter specs
http://www.madisound.com/pdf/seas/H1149.pdf

Thanks,

REALFLEO
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Old 15th December 2006, 10:28 AM   #2
sreten is offline sreten  United Kingdom
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http://www.humblehomemadehifi.com/Tempo.html

http://www.partsexpress.com/projects...la/nebula.html

http://www.t-linespeakers.org/tech/f...eff/index.html

/sreten.
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Old 15th December 2006, 12:56 PM   #3
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Thanks for the links.

What's bad is they all use the Vifa driver but with different tweeter then the one I have.

I'm just not sure witch crossover point to choose and how to accurately choose it.

Thanks,

REALFLEO
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Old 15th December 2006, 05:16 PM   #4
sreten is offline sreten  United Kingdom
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Default Re: crossover advice please

Quote:
Originally posted by REALFLEO

I plan to use a tweeter L-pad and a EQ for the driver to remove the impedance spike around 4kHz and 5kHz.

REALFLEO
What spike ? /sreten.
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Old 15th December 2006, 05:22 PM   #5
sreten is offline sreten  United Kingdom
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Hmmm.......

you could do a lot worse than using this as your starting point :

Click the image to open in full size.

:0sreten.
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Old 15th December 2006, 05:34 PM   #6
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where have you took that crossover sheme ?

Do you have his crossover point ?

Thanks,

REALFLEO
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Old 18th December 2006, 11:53 AM   #7
sreten is offline sreten  United Kingdom
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http://www.t-linespeakers.org/tech/f...eff/index.html

c/o point is 1.75Khz L/R 4th order acoustic

Click the image to open in full size.

Substituting a tweeter is a lot easier than starting from scratch.

/sreten.
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