Seas L series 6.5" 2way

michael · 4th December 2003, 01:49 PM

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

sreten · 4th December 2003, 02:54 PM

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.

michael · 4th December 2003, 08:40 PM

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.

sreten · 4th December 2003, 08:57 PM

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.

Diode · 6th December 2003, 03:17 AM

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

michael · 6th December 2003, 08:48 AM

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?

sreten · 6th December 2003, 05:19 PM

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.

michael · 7th December 2003, 12:14 AM

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

sreten · 7th December 2003, 04:35 AM

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.

sreten · 8th December 2003, 07:53 AM

http://murphyblaster.com/content.php?f=seas_L17.html

4th December 2003, 01:49 PM	#1
michael diyAudio Member Join Date: Sep 2003 Location: Adelaide Hills	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

6th December 2003, 03:17 AM	#5
Diode diyAudio Member Join Date: Feb 2003 Location: Oklahoma USA	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 __________________ The best audio is clean audio!

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4th December 2003, 02:54 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	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.

4th December 2003, 08:40 PM	#3
michael diyAudio Member Join Date: Sep 2003 Location: Adelaide Hills	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.

4th December 2003, 08:57 PM	#4
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	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.

6th December 2003, 08:48 AM	#6
michael diyAudio Member Join Date: Sep 2003 Location: Adelaide Hills	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?

6th December 2003, 05:19 PM	#7
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	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.

7th December 2003, 12:14 AM	#8
michael diyAudio Member Join Date: Sep 2003 Location: Adelaide Hills	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

7th December 2003, 04:35 AM	#9
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	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.

8th December 2003, 07:53 AM	#10
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	http://murphyblaster.com/content.php?f=seas_L17.html