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LX-mini Crossover Article
LX-mini Crossover Article
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Old 27th November 2018, 10:30 PM   #291
Nelson Pass is offline Nelson Pass  United States
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LX-mini Crossover Article
Quote:
Originally Posted by wcwc View Post
The one in Post #119 doesn't work. It goes directly to the .CIR file. Where is the other First Watt link?
I was using the one you get from the DIY page at First Watt, but the
above post link is fine also.
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Old 28th November 2018, 08:23 AM   #292
escucalin is offline escucalin
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Mr Pass, do you think is appropriate for me to post the modifications I made on your schematic and simulation adding the midrange filter for a 3 way crossover?
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Old 28th November 2018, 09:10 AM   #293
zkinc is offline zkinc  Croatia
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the link of Georgeged is working ok
thanks
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Old 28th November 2018, 06:06 PM   #294
Nelson Pass is offline Nelson Pass  United States
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LX-mini Crossover Article
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Originally Posted by escucalin View Post
Mr Pass, do you think is appropriate for me to post the modifications I made on your schematic and simulation adding the midrange filter for a 3 way crossover?
Feel free. Siegfried clearly wanted information to be public on this, and
posting yours will add to the conversation.

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Old 28th November 2018, 07:42 PM   #295
escucalin is offline escucalin
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The crossover points i need are configured but ; they can easily go changed ; maybe a way to modify those crossover points by using a potentiometer or fixed resistors would be great. I also found that in simulation AC->Slider can create a pot out of any resistor allowing a almost realtime curve update.

see the archive here

Edit:
and screen shot; see sliders on right side :

Click the image to open in full size.

Last edited by escucalin; 28th November 2018 at 07:48 PM. Reason: adding screenshot
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Old 6th December 2018, 10:05 PM   #296
Manolo47 is offline Manolo47  Puerto Rico
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Default First order xover changes question

I would like to try a first order xovr setup and would like to know how to do that. I know the high and low sections have 2 pole filters for a 2nd. order implementation, but I am not sure which capacitors or resistors to bypass in each section to accomplish a 6 db/octave filter for both high and low pass sections.

And also, a comment or maybe a question I Have been experimenting with the phase connection to my subwoofers. I started with inverted woofer connections
but last night I changed the connection to "normal" and it seems to me the that the blend is much better ?.. So now, supposedly the woofers are out of phase. Both the mains and sw's are open baffle - Spatial M4's and a diy Ripoles. Thanks!
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Old 6th December 2018, 10:10 PM   #297
R-K Rønningstad is online now R-K Rønningstad  Norway
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You could maybe get away with simple passive RC-filters in front of your power amps.
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Old 6th December 2018, 11:01 PM   #298
MarkS is offline MarkS  United Kingdom
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LX-mini Crossover Article
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Originally Posted by R-K Rønningstad View Post
You could maybe get away with simple passive RC-filters in front of your power amps.
That was the principle behind the Tannoy XO5000 powered xover with the passive two way modules...
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Old 7th December 2018, 11:46 AM   #299
Manolo47 is offline Manolo47  Puerto Rico
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Thanks, I understand your idea, but I am referring to the lx-mini implementation. Upon looking into the B4 manual in the FW site I think I might seen how to do it.. The remaining question is regarding my observation about the phase issue rendered in my post above.
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Old 7th December 2018, 12:27 PM   #300
R-K Rønningstad is online now R-K Rønningstad  Norway
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Av. Of course, you will need the other parts of the design as well. Nevertheless it should be easy to reduce the filter to first order.
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