help: 3 way skan Speak crossover

fheanor · 16th October 2003, 11:40 PM

Hello all:

Actually i have a pair of two-way DIY floorstanding speakers, based on a proac response 2,5 with modified crossover. The drivers i am using are ss 9500tweeter and 18w/8535 carbon-paper midwoofer. I would like to convert them in a 3-way design, since i think i could improve the midband. The midrange driver i will use is a 13M/8640-00 (or 13M/8636-00)... the problem is that i don't have any idea about crossover design, and i am not able to find any on the net with the same drivers. Please if you know where i can find any 3-way filter design usable with that ss (or similar ss drivers) i'll heratly thank you

.

Thanks for your time, and sorry... my english skill sucks

Xmi

LaMa · 17th October 2003, 11:53 AM

I don't think it is needed to add a third driver, optimising the existing cross-over will give the best results.
A true 3way cross-over is very hard to get right and not needed because your drivers do work in the requested frequency range.

In order to get a good cross-over in your situation you have to measure the actual acoustical and impedance response of the drivers in your cabinet. And with this info you can create a cross-over.

Substituting a filter out of other designs isn't possible without compromising the soundquality. And ScanSpeak drivers are expensive enough to make some labor for.

16th October 2003, 11:40 PM	#1
fheanor diyAudio Member Join Date: Oct 2003 Location: spain	help: 3 way skan Speak crossover Hello all: Actually i have a pair of two-way DIY floorstanding speakers, based on a proac response 2,5 with modified crossover. The drivers i am using are ss 9500tweeter and 18w/8535 carbon-paper midwoofer. I would like to convert them in a 3-way design, since i think i could improve the midband. The midrange driver i will use is a 13M/8640-00 (or 13M/8636-00)... the problem is that i don't have any idea about crossover design, and i am not able to find any on the net with the same drivers. Please if you know where i can find any 3-way filter design usable with that ss (or similar ss drivers) i'll heratly thank you . Thanks for your time, and sorry... my english skill sucks Xmi

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17th October 2003, 11:53 AM	#2
LaMa diyAudio Member Join Date: Sep 2002 Location: NL	I don't think it is needed to add a third driver, optimising the existing cross-over will give the best results. A true 3way cross-over is very hard to get right and not needed because your drivers do work in the requested frequency range. In order to get a good cross-over in your situation you have to measure the actual acoustical and impedance response of the drivers in your cabinet. And with this info you can create a cross-over. Substituting a filter out of other designs isn't possible without compromising the soundquality. And ScanSpeak drivers are expensive enough to make some labor for.

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