Galtis crossover question

mlankton · 7th September 2006, 01:34 AM

I'm pretty sure this is the speaker I am going to build. One question, the xover seems to have been altered (look at the tweeter/mid portion of the schematic), and I'm wondering which are the final values. If Stefan is reading this, or if anyone has built this, please toss me a hint. Thanks

On another note, since the DX25 and XT25 are practically interchangeable, if any xover whiz out there would have a suggestion on what change to make to utilize a DX25TG, I would really be appreciative.

andrew01 · 7th September 2006, 09:35 AM

IIRC..
Stephen used a "standard" value inductor and unwound a bit to get the calc'ed value.
as for the Resister.......no idea

andrew01 · 7th September 2006, 09:38 AM

I wonder how this design would go with the 18W8531G-00 instead of 8535 ???........nice I reckon
or
maybe the 25W/8565-01

Jonasz · 12th September 2006, 06:44 PM

Here you can find an updated version of the Galtis wich is supposed to be considerably better than the original. It uses the SS9700 tweeter and you can find the crossover at the bottom of the page.

Good luck!

http://www.hififorum.nu/forum/topic....chTerms=galtis

mlankton · 13th September 2006, 01:28 AM

Quote:

Originally posted by Jonasz
Here you can find an updated version of the Galtis wich is supposed to be considerably better than the original. It uses the SS9700 tweeter and you can find the crossover at the bottom of the page.

Good luck!

http://www.hififorum.nu/forum/topic....chTerms=galtis

Outstanding! Thank you so much. This project had been eliminated from consideration recently, but this moves it back to the top of my list.
Again, thanks much for the info.

augerpro · 13th September 2006, 03:10 AM

http://www.hififorum.nu/forum/topic...rchTerms=galtis

What changes are made to the crossover from the XT25 to the 9700 in that htread? I can't understand anything in it, except "9700!" so I figure he must have liked this change

Jonasz · 13th September 2006, 04:13 AM

Well, if you compare the mid/tweeter crossover it's completely redesigned. It used to be a series topology, now it's a parallell. The crossover frequency is now 2khz wich suits the 8545 better.

You can tune the mid and tweeter levels to your liking and room by changing the 6 ohm and 1.8 ohm resistor respectively.

mlankton · 14th September 2006, 04:34 PM

Has anyone else noticed that barring the enclosure's 5 degree slant, smaller enclosure, the use of a Scan Speak instead of Seas tweeter, and the low xover point where the tweeter takes over, that the Galtis MkII is awfully close to the holy grail of being a diy Response 3.8?

On top of that, for a multi channel system, the Madisound Solist uses the 9700 and 1845. Xover differences aside, there is already a center out there that uses the same drivers.

When the time comes to build I will start a construction diary thread of my 4x Galtis MkII + Solist center system.

Thanks again to Jonasz for the tip. With the 9700 this is exactly the speaker that I have been looking to build.

rkreim · 15th September 2006, 05:34 AM

i have built these with the xt25 and i am very happy with them it might be worth your while to email stefan on any updates

Jonasz · 15th September 2006, 02:58 PM

mlankton: I'm happy to be at service.

Btw, don't forget to post your results when they're done!

7th September 2006, 01:34 AM	#1
mlankton diyAudio Member Join Date: May 2005 Location: Red Oak, IA	Galtis crossover question I'm pretty sure this is the speaker I am going to build. One question, the xover seems to have been altered (look at the tweeter/mid portion of the schematic), and I'm wondering which are the final values. If Stefan is reading this, or if anyone has built this, please toss me a hint. Thanks On another note, since the DX25 and XT25 are practically interchangeable, if any xover whiz out there would have a suggestion on what change to make to utilize a DX25TG, I would really be appreciative.

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7th September 2006, 09:35 AM	#2
andrew01 diyAudio Member Join Date: May 2003 Location: Adelaide Southern Suburbs	IIRC.. Stephen used a "standard" value inductor and unwound a bit to get the calc'ed value. as for the Resister.......no idea

7th September 2006, 09:38 AM	#3
andrew01 diyAudio Member Join Date: May 2003 Location: Adelaide Southern Suburbs	I wonder how this design would go with the 18W8531G-00 instead of 8535 ???........nice I reckon or maybe the 25W/8565-01

12th September 2006, 06:44 PM	#4
Jonasz diyAudio Member Join Date: Feb 2003 Location: Kristinehamn	Here you can find an updated version of the Galtis wich is supposed to be considerably better than the original. It uses the SS9700 tweeter and you can find the crossover at the bottom of the page. Good luck! http://www.hififorum.nu/forum/topic....chTerms=galtis

13th September 2006, 03:10 AM	#6
augerpro diyAudio Member Join Date: Aug 2006	http://www.hififorum.nu/forum/topic...rchTerms=galtis What changes are made to the crossover from the XT25 to the 9700 in that htread? I can't understand anything in it, except "9700!" so I figure he must have liked this change

13th September 2006, 04:13 AM	#7
Jonasz diyAudio Member Join Date: Feb 2003 Location: Kristinehamn	Well, if you compare the mid/tweeter crossover it's completely redesigned. It used to be a series topology, now it's a parallell. The crossover frequency is now 2khz wich suits the 8545 better. You can tune the mid and tweeter levels to your liking and room by changing the 6 ohm and 1.8 ohm resistor respectively.

14th September 2006, 04:34 PM	#8
mlankton diyAudio Member Join Date: May 2005 Location: Red Oak, IA	Has anyone else noticed that barring the enclosure's 5 degree slant, smaller enclosure, the use of a Scan Speak instead of Seas tweeter, and the low xover point where the tweeter takes over, that the Galtis MkII is awfully close to the holy grail of being a diy Response 3.8? On top of that, for a multi channel system, the Madisound Solist uses the 9700 and 1845. Xover differences aside, there is already a center out there that uses the same drivers. When the time comes to build I will start a construction diary thread of my 4x Galtis MkII + Solist center system. Thanks again to Jonasz for the tip. With the 9700 this is exactly the speaker that I have been looking to build.

15th September 2006, 05:34 AM	#9
rkreim diyAudio Member Join Date: Jul 2005 Location: australia	i have built these with the xt25 and i am very happy with them it might be worth your while to email stefan on any updates

15th September 2006, 02:58 PM	#10
Jonasz diyAudio Member Join Date: Feb 2003 Location: Kristinehamn	mlankton: I'm happy to be at service. Btw, don't forget to post your results when they're done!

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