voice coils

[boogieman909 10+ year member]

what is a voice coil and what is thier purpose? if a sub has more voice coil will it be better?

and what is a passive and active equalizer? what is thier pros and cons?

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[maylar 10+ year member]

The voice coil is a coil of wire inside the speaker that the input source connects to. Electricity flowing through the voice coil creates the magnetic field that causes the speaker to move.

The voice coil is the "load" on an amplifier, and is measured in ohms. Having dual voice coils allows the installation more flexibility in choosing how to match the speakers to the amp.

A passive crossover is a set of coils and / or capacitors that have fixed frequency characteristics. Advantage is price and size and no 12 volt power is required. An active crossover uses electronic circuitry and has the advantage of being adjustable.