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Multi-Way Conventional loudspeakers with crossovers

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Old 4th December 2003, 01:49 PM   #1
michael is offline michael  Australia
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Default Seas L series 6.5" 2way

Does anyone have direct experience with the 6.5" seas aluminium drivers, i would like to use some in a 2 way, either TM or MTM depending on my finances when they come around, i know that the woofers have some strange cone breakup up high and so i would also like advice on what to do in the crossover to deal with this, is it jsut a steep slope?

help on any of this would be great
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Old 4th December 2003, 02:54 PM   #2
sreten is online now sreten  United Kingdom
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Nearly all metal drivers require a parrallel resonant
circuit to supress the main resonant peak.
A high slope crossover is not enough.

checkout the crossovers for the kits using metal drivers
on the www.seas.no website.

/sreten.
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Old 4th December 2003, 08:40 PM   #3
michael is offline michael  Australia
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thanks for the reply, i looked at the seas kits crossovers and did not know what i was looking for, can anyone help me out, the woofer that i want to use is the L17RE/P, with the tweeter 27TFFC.
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Old 4th December 2003, 08:57 PM   #4
sreten is online now sreten  United Kingdom
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Hmmm......

The double peak in the response of the L17RE/P makes it even
trickier than the Excel magnesium units which only have one peak.

Try this link :

http://home.hetnet.nl/~geenius/DD8.html

/sreten.
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Old 6th December 2003, 03:17 AM   #5
Diode is offline Diode  United States
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Sorry,

I only have the Seas Excel magnesium ones with RavenII ribbon tweeters. I bought them as kits from a company in America called Zalytron. See if they have a web site..... Probably Zalytron.com Maybe they can lend a hand. Can't hurt to check. I love mine!!!

Good luck,

Chris
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Old 6th December 2003, 08:48 AM   #6
michael is offline michael  Australia
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ok i went to that site you mentioned and saw the crossover for both the woofers in question, the woofer that has higher efficiency is only $8 more in aust so that would be better, but the tweeter i want to use is different to that one, what do you think should be done, a change of crossover or not?
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Old 6th December 2003, 05:19 PM   #7
sreten is online now sreten  United Kingdom
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If you checkout the two tweeter specifications at www.seas.no
you'll see that they are as near identical as your likely to find.

So you can use either tweeter with the crossover.

/sreten.
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Old 7th December 2003, 12:14 AM   #8
michael is offline michael  Australia
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ok thank you, that works well then, thanks sreten, i really should learn more about crossovers,
but yes until i know alot more and especially for my first speaker project i will look for crossovers i can copy. thanks sreten
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Old 7th December 2003, 04:35 AM   #9
sreten is online now sreten  United Kingdom
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A way more than simply sensible approach IMO.

But note that as long as you keep the baffle width
the same with a crossover you do still have some
choice of enclosure volume and bass alignment.

/sreten.
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Old 8th December 2003, 07:53 AM   #10
sreten is online now sreten  United Kingdom
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http://murphyblaster.com/content.php?f=seas_L17.html
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