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Homemade low pass
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<blockquote data-quote="maylar" data-source="post: 277016" data-attributes="member: 541144"><p>A 2 element lowpass will give you 12 dB/Octave. You need an inductor in series with the speaker and a capacitor in parallel with it. You calculate the values like this:</p><p></p><p>Inductance = Impedance / (2 * Pi * freq)</p><p></p><p>That will be Henries. Multiply by 1000 to get milliHenries, which is what the parts vendors will list them as.</p><p></p><p>Capacitance = 1 / (2 * Pi * freq * Impedance)</p><p></p><p>That will be in Farads. Multiply by 1 million to get microFarads.</p><p></p><p>The problem is that inductors add resistance because of their wire. And they get big. Ones will handle high power should be at least 18 gage.</p><p></p><p>Partsexpress.com sells the components.</p></blockquote><p></p>
[QUOTE="maylar, post: 277016, member: 541144"] A 2 element lowpass will give you 12 dB/Octave. You need an inductor in series with the speaker and a capacitor in parallel with it. You calculate the values like this: Inductance = Impedance / (2 * Pi * freq) That will be Henries. Multiply by 1000 to get milliHenries, which is what the parts vendors will list them as. Capacitance = 1 / (2 * Pi * freq * Impedance) That will be in Farads. Multiply by 1 million to get microFarads. The problem is that inductors add resistance because of their wire. And they get big. Ones will handle high power should be at least 18 gage. Partsexpress.com sells the components. [/QUOTE]
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