3-way studio monitor design recommendation - Page 2

PeteMcK · 14th August 2008, 11:06 PM

Your revised crossover still uses nominal values for impedance. If you look at the impedance curve on on the manufactures site, you will see that the impedance at the frequencies you have selected is different from the nominal impedance.
The calculator you have used doesn't take into account Baffle Step Correction, either.

rhythmdiy · 14th August 2008, 11:44 PM

ohhhh ok now i got it... i need to have linear impedance while selecting the crossover points.... ok... thanks alot for the info... can you give me few more tips please..

thanks

PeteMcK · 15th August 2008, 12:05 AM

Some reading:
the Basics:http://sound.westhost.com/lr-passive.htm
choosing xover point: http://www.speakerbuilder.net/web_fi...xpointmain.htm
Baffle Step Compensation:http://sound.westhost.com/bafflestep.htm

alexclaber · 15th August 2008, 10:10 AM

I believe if you can cross over each speaker well above resonance then you'll minimise impedance related issues as will choosing speakers with low inductance (less impedance rise with frequency). The Elliott Sound link is very good at helping you sort out the basics of impedance compensation - I'd be amazed if you can get good response without some additional components to help the filters perform correctly.

Alex

14th August 2008, 11:06 PM	#11
PeteMcK diyAudio Member Join Date: Feb 2002 Location: Sydney	Your revised crossover still uses nominal values for impedance. If you look at the impedance curve on on the manufactures site, you will see that the impedance at the frequencies you have selected is different from the nominal impedance. The calculator you have used doesn't take into account Baffle Step Correction, either. __________________ ‘today… there lives alongside the twentieth century the tenth or thirteenth. A hundred million people use electricity and still believe in the magic power of signs and exorcisms” Trotsky

15th August 2008, 12:05 AM	#13
PeteMcK diyAudio Member Join Date: Feb 2002 Location: Sydney	Some reading: the Basics:http://sound.westhost.com/lr-passive.htm choosing xover point: http://www.speakerbuilder.net/web_fi...xpointmain.htm Baffle Step Compensation:http://sound.westhost.com/bafflestep.htm __________________ ‘today… there lives alongside the twentieth century the tenth or thirteenth. A hundred million people use electricity and still believe in the magic power of signs and exorcisms” Trotsky

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14th August 2008, 11:44 PM	#12
rhythmdiy diyAudio Member Join Date: Dec 2006	ohhhh ok now i got it... i need to have linear impedance while selecting the crossover points.... ok... thanks alot for the info... can you give me few more tips please.. thanks

15th August 2008, 10:10 AM	#14
alexclaber diyAudio Member Join Date: Jan 2005 Location: Brighton	I believe if you can cross over each speaker well above resonance then you'll minimise impedance related issues as will choosing speakers with low inductance (less impedance rise with frequency). The Elliott Sound link is very good at helping you sort out the basics of impedance compensation - I'd be amazed if you can get good response without some additional components to help the filters perform correctly. Alex

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