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<blockquote data-quote="thch" data-source="post: 2450699" data-attributes="member: 562032">basically, the speaker is a transducer.&nbsp; if converts electrical energy into mechanical energy.&nbsp; but it also converts mechanical energy into electrical energy.so when the amp trys to make the cone wobble back and forth, it is possible for the amp to send energy to the speaker and make the heavy cone start to move.&nbsp; then later in the cycle the energy from the moving cone gets sent back to the amp.the dual happens with the springiness of air -- it stores energy too.&nbsp; the mass tries to move the coil forward, and the spring tries to move it back.at resonance, the mass and spring forces are equal -- the heavy cone wants to move forward just as much as the springiness wants to move things back.(this is the basis for the T/S specs).Similar things happen in the electrical world.&nbsp; coils try to keep current flowing, and capacitors try to keep voltage constant.&nbsp; coils (inductance) are similar to mass, and caps are similar to a spring.&nbsp; the voice _coil_ clearly has some inductance as it is a coil.&nbsp; the OP is asking if there is any benefit to placing a capacitor in some connection to the speaker, in order to resonante with the coils natural inductance.In this case, the coil&#039;s inductance can store very little energy compared to the mechanical storage capabilities of the mass/spring of the cone (which are attached to an electrical-mechanical converter and thus are in the electrical circuit despite being mechanical elements!)</blockquote>

[QUOTE="thch, post: 2450699, member: 562032"] basically, the speaker is a transducer. if converts electrical energy into mechanical energy. but it also converts mechanical energy into electrical energy. so when the amp trys to make the cone wobble back and forth, it is possible for the amp to send energy to the speaker and make the heavy cone start to move. then later in the cycle the energy from the moving cone gets sent back to the amp. the dual happens with the springiness of air -- it stores energy too. the mass tries to move the coil forward, and the spring tries to move it back. at resonance, the mass and spring forces are equal -- the heavy cone wants to move forward just as much as the springiness wants to move things back. (this is the basis for the T/S specs). Similar things happen in the electrical world. coils try to keep current flowing, and capacitors try to keep voltage constant. coils (inductance) are similar to mass, and caps are similar to a spring. the voice _coil_ clearly has some inductance as it is a coil. the OP is asking if there is any benefit to placing a capacitor in some connection to the speaker, in order to resonante with the coils natural inductance. In this case, the coil's inductance can store very little energy compared to the mechanical storage capabilities of the mass/spring of the cone (which are attached to an electrical-mechanical converter and thus are in the electrical circuit despite being mechanical elements!) [/QUOTE]

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