Reply to thread

Message

<blockquote data-quote="skylineTT" data-source="post: 7750282" data-attributes="member: 576995">it&#039;ll probably pop the coil before it really does much if it is an xplod.As far as your actual question, if the amplifier is turned on but there is NO signal (this means volume is at 0 or something), it should have no more resistance to the touch than it would if the amplifier was off. Subwoofers work by running an alternating current through the coil. This AC current is constantly going from positive voltage to negative voltage so the coil is seeing an alternating positive and negative. The magnet on the motor will push the coil forward if it sees positive and backward if it sees negative. This is why your subwoofer is always moving in and out when it is being used. The frequency of the signal determines the wavelength of the current which changes the speed at which the coil/cone is moving in and out, thus changing the pitch heard by ear.Based on this info, if there is no signal, the magnet is not pushing the coil in any direction and it is not able to resist motion in any certain direction more than it would without the amplifier on.</blockquote>

[QUOTE="skylineTT, post: 7750282, member: 576995"] it'll probably pop the coil before it really does much if it is an xplod. As far as your actual question, if the amplifier is turned on but there is NO signal (this means volume is at 0 or something), it should have no more resistance to the touch than it would if the amplifier was off. Subwoofers work by running an alternating current through the coil. This AC current is constantly going from positive voltage to negative voltage so the coil is seeing an alternating positive and negative. The magnet on the motor will push the coil forward if it sees positive and backward if it sees negative. This is why your subwoofer is always moving in and out when it is being used. The frequency of the signal determines the wavelength of the current which changes the speed at which the coil/cone is moving in and out, thus changing the pitch heard by ear. Based on this info, if there is no signal, the magnet is not pushing the coil in any direction and it is not able to resist motion in any certain direction more than it would without the amplifier on. [/QUOTE]

Verification