Any design idea for SS 18W8545 and D2905/9500

kirc · 19th April 2004, 06:10 AM

Hi!

Today I receive a pair of Scanspeak 18W8545 and a pair of Scanspeak D2905/9500.

I would like to build a pair of loudspeakers, probably Sonus Faber Electra Amator II clone.
Is anyone at this forum use this combination ? Is anyone who build a Electra Amator II clone ?

I will drive this speaker with Aleph P/Aleph 5 clone.
I think that XO can be simple 6dB/oct with a little resistor correction on tweeter.

Any Idea on design ?

kirc · 20th April 2004, 05:17 AM

No hints at all ?

Looking for some link's to Sonus Faber speaker clones...

vuki · 20th April 2004, 06:09 AM

Hi kirc,

I have some expirience with SS8545 driver, but I used it in a 2way project with revelator (9900) tweeter.
First order crossover can be used with SS8545 but not a simple one, because to linearize its response one have to use large inductor which leeds to low crossover point (<1,8kHz) and still has too easy post xover-point slope.
I used 2nd order crossover with few compensation notches, and I'll post measurements graphs and schematic later if you are interested.

regards,
Vuki

Hans L · 20th April 2004, 01:35 PM

Here's one with the 9300 tweet, which is pretty close to the 9500.
Making of M1

That should make for a very nice sounding speaker. It could need some (very) minor tweaking for the different tweeter, if any, depending on your preferences in voicing.

Cheers.

vuki · 20th April 2004, 03:58 PM

Here...
xover

vuki · 20th April 2004, 03:59 PM

and fr...

ToxicSlick · 20th April 2004, 07:18 PM

I am also currently designing a pair of speakers using those two drivers in a ported box of ~ 20 liters. I have built one prototype box to test/burn in the 8545s and will soon be building some more boxes.

Any more advice about the XO would be appreciated.

Robert

19th April 2004, 06:10 AM	#1
kirc diyAudio Member Join Date: Aug 2001 Location: Slovenia	Any design idea for SS 18W8545 and D2905/9500 Hi! Today I receive a pair of Scanspeak 18W8545 and a pair of Scanspeak D2905/9500. I would like to build a pair of loudspeakers, probably Sonus Faber Electra Amator II clone. Is anyone at this forum use this combination ? Is anyone who build a Electra Amator II clone ? I will drive this speaker with Aleph P/Aleph 5 clone. I think that XO can be simple 6dB/oct with a little resistor correction on tweeter. Any Idea on design ? __________________ Music is a part of my life, DIY is my life.

20th April 2004, 05:17 AM	#2
kirc diyAudio Member Join Date: Aug 2001 Location: Slovenia	no hints ? No hints at all ? Looking for some link's to Sonus Faber speaker clones... __________________ Music is a part of my life, DIY is my life.

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20th April 2004, 06:09 AM	#3
vuki diyAudio Member Join Date: Jun 2002 Location: zagreb, croatia	Hi kirc, I have some expirience with SS8545 driver, but I used it in a 2way project with revelator (9900) tweeter. First order crossover can be used with SS8545 but not a simple one, because to linearize its response one have to use large inductor which leeds to low crossover point (<1,8kHz) and still has too easy post xover-point slope. I used 2nd order crossover with few compensation notches, and I'll post measurements graphs and schematic later if you are interested. regards, Vuki

20th April 2004, 01:35 PM	#4
Hans L diyAudio Member Join Date: Apr 2004 Location: Planet Earth	Here's one with the 9300 tweet, which is pretty close to the 9500. Making of M1 That should make for a very nice sounding speaker. It could need some (very) minor tweaking for the different tweeter, if any, depending on your preferences in voicing. Cheers.

20th April 2004, 07:18 PM	#7
ToxicSlick diyAudio Member Join Date: Apr 2004 Location: Huntsville, Alabama	I am also currently designing a pair of speakers using those two drivers in a ported box of ~ 20 liters. I have built one prototype box to test/burn in the 8545s and will soon be building some more boxes. Any more advice about the XO would be appreciated. Robert

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