ohms?

Systems
Systems Posts: 14,873
edited July 2003 in Car Subwoofer Talk
I don't understand ohms in subs and amps at all what are they? Do i need a sub with 4 ohms or two?
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  • Systems
    Systems Posts: 14,873
    edited July 2003
    it all depends on want you want to achive with the wire.

    an ohm is restsitance and this for any electrical cirit to work.
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  • Jstas
    Jstas Posts: 14,820
    edited July 2003
    First off, a basic definition of an ohm is a unit of measure the describes the impedance of a circuit in reference to it's resistance to current flow. The lower the number, the less impedance there is in the circuit.

    That's the basic idea. If you want more information, you can go here:

    http://ohmslaw.com/

    to get a description, tutorial and even some exercises on understanding Ohm's Law.

    You can also goto http://www.ask.com and type in the question What is an ohm? and it will return many many hits of descritions, definitions and further information.

    Also, if you goto http://www.dictionary.com and type in ohm in the box at the top of the page, it will give you all kinds of definitions. It listed 8 entries when I did it.

    As far as what you need, 4 ohms or 2 ohms, it depends. What is your application? A 4 ohm speaker is pretty much the norm and a 2 ohm speaker will require some more expensive equipment that really is a little beyond the scope of a beginner. So in your best financial and educational interests, I'd say to stick with 4 ohm speakers.
    Expert Moron Extraordinaire

    You're just jealous 'cause the voices don't talk to you!
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  • PoweredByDodge
    PoweredByDodge Posts: 4,185
    edited July 2003
    in addition to what Jstas said... the only reason i could see a BEGINNER getting anything other than a 4 ohm speaker, would be if this beginner already had purchased an amplifier that was a 2 channel, and was going to use that 2 channel amp for his subs... knowing it would only put out top power when bridged, that beginner would have to get two 8 ohm subwoofers (or dual 4 ohm coil) in order to make it work right.

    otherwise... dont waste your time trying to get different ohm load speakers...

    spend your time trying to learn audio... when u've got that down, then u can think about difft ohm speakers...

    the main purpose of speakers with other than 4 ohm impedances is to make it possible for people to wire up setups in their vehicle which may nto be the most common, thus requring them to have something different to make it work.
    The Artist formerly known as PoweredByDodge
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