Driver Electrical equivalent circuit to design xover
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 Multi-Way Conventional loudspeakers with crossovers

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 20th September 2005, 06:27 PM #1 diyAudio Member   Join Date: Nov 2004 Location: Los Angeles Driver Electrical equivalent circuit to design xover Anyone knows a website or documention to calculate an electrical equivalent circuit? I need to design some xovers but I don't have the design software. I just need the equivalent circuit to calculate 3db point ... and so on.
 20th September 2005, 07:21 PM #2 diyAudio Member     Join Date: Feb 2004 Location: Stockholm Is this what you need? Mm is Mms, Cm is Cms and Rm is Rms. Also note that Le usually doesn't behave exactly like a normal inductance. __________________ Simulate loudspeakers: Basta! Simulate the baffle step: The Edge
 20th September 2005, 08:03 PM #3 diyAudio Member   Join Date: Nov 2004 Location: Los Angeles Thanks. I'll try that.
 21st September 2005, 12:28 AM #4 diyAudio Member   Join Date: Nov 2004 Location: Los Angeles Svante, On the schematic, Mm is inductance and Cm is capacitance, correct?
diyAudio Member

Join Date: Feb 2004
Location: Stockholm
Quote:
 Originally posted by andy2 Svante, On the schematic, Mm is inductance and Cm is capacitance, correct?
Nope. The mass (Mms) appears on the electrical side as a capacitance with the value Mms/(Bl)^2, and the suspension compliance (Cms) as an inductance (Bl)^2*Cms.

I understand the confusion, since mass is drawn as inductance and compliance as capacitance when using impedance analogies of the mechanical system. But seen from the electrical side, that is what happens (the motor converts the mechanical impedance to its dual network, ie the motor can be seen as a gyrator).
__________________
Simulate loudspeakers: Basta!
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 23rd July 2010, 06:25 AM #6 diyAudio Member   Join Date: Nov 2009 Location: Pune Thanks __________________ There is always a first time....
 23rd July 2010, 06:31 AM #7 diyAudio Member   Join Date: Nov 2009 Location: Pune If this forum is still replied. then just conform. Mms/(Bl)^2 = Capacitance in farad ( and not like mfd or else) (Bl)^2*Cms = will give value in henry ( not uh or mh). __________________ There is always a first time....
 23rd July 2010, 12:18 PM #8 diyAudio Member   Join Date: May 2008 Location: Poland
 24th July 2010, 08:15 AM #9 diyAudio Member   Join Date: Nov 2009 Location: Pune Thanks aczern __________________ There is always a first time....

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