Active crossover with linear phase response

ackcheng · 20th July 2004, 03:50 AM

Just wondering if anyone tried this active XO?

http://users.otenet.gr/~athsam/3way...r_phase_eng.htm

Anny comments? How would it compare to the MXO?

mstol · 20th July 2004, 05:54 AM

I think these filters in general aren't popular because there's few options to tune the filter. Apart from picking a single crossover frequency (two frequencies for a 3-way) there isn't much you can change about it. Your stuck with a textbook filter response, which isn't very usefull when building speakers. If you need any corrections, you'll need additional electronics.

With a filter like the MOX you get to set the order, the Q and the Fc for the high- and lowpass independently. There's a good change that any corrections you need can be made using these parameters, but if you need more there's still some space left on the PCB.

20th July 2004, 03:50 AM	#1
ackcheng diyAudio Member Join Date: Dec 2003 Location: hong Kong	Active crossover with linear phase response Just wondering if anyone tried this active XO? http://users.otenet.gr/~athsam/3way...r_phase_eng.htm Anny comments? How would it compare to the MXO?

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20th July 2004, 05:54 AM	#2
mstol diyAudio Member Join Date: Mar 2004 Location: Alphen aan den Rijn	I think these filters in general aren't popular because there's few options to tune the filter. Apart from picking a single crossover frequency (two frequencies for a 3-way) there isn't much you can change about it. Your stuck with a textbook filter response, which isn't very usefull when building speakers. If you need any corrections, you'll need additional electronics. With a filter like the MOX you get to set the order, the Q and the Fc for the high- and lowpass independently. There's a good change that any corrections you need can be made using these parameters, but if you need more there's still some space left on the PCB.

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