impedence

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Izzum88

Copper - Posts: 51

Joined: March 02, 2005

Location: United States

Posted: March 08, 2005 at 9:44 PM / IP Logged

It will sound like a dumb question to you guys but how do you know how many ohms your amp is running on ? I understand connecting speakers in a series or paralell but then how do get the amp to that amount of ohms

Jay22

Copper - Posts: 73

Joined: April 27, 2004

Location: Canada

Posted: March 08, 2005 at 9:56 PM / IP Logged

okay do you take lets say two 4 ohm subs and run them parralel the two pos. together and the two neg together then to the amp to acheive a 2 ohm load.....If your amp is 2 ohm stable it will run that. the amp just knows kinda...cant think of how to say it lol......if you were to take a ohm-meter to the pos and neg of the sub wires you should get 2 ohms

Hope this helps ya out

Jay

Poormanq45

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Posted: March 08, 2005 at 10:35 PM / IP Logged

The Ohm load is not always the same. It changes as the frequency changes. The rating that the manufature gives you is a nominal(average) rating.

oonikfraleyoo

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Posted: March 08, 2005 at 11:06 PM / IP Logged

Ohms is a measure of resitstance. In very layman's terms, its the resistance your speaker put on your amp. The amp doesn't put out resistance.

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stevdart

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Posted: March 09, 2005 at 12:36 AM / IP Logged

To fully understand why you don't have to set the amp to the ohm load of the speakers, you have to know the basics of how electricity works. It's described by the late great Mr. Ohm in what we know as Ohm's Law. A law is not the same thing as a theory. It is fact, absolute and official, and cannot be denied. A good and easy read to learn the correlation between voltage, resistance, current and power can be found at BCAE1.com.

Poormanq45

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Posted: March 09, 2005 at 12:43 AM / IP Logged

Resistance is the opposition to the flow of direct current. Impedence is the opposition to the flow of alternating current.

Izzum88

Copper - Posts: 51

Joined: March 02, 2005

Location: United States

Posted: March 09, 2005 at 9:59 AM / IP Logged

What about running your amp at 1 ohm, if you have a 1 ohm stable amp?

DYohn

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Posted: March 09, 2005 at 10:12 AM / IP Logged

Izzum88 wrote:

What about running your amp at 1 ohm, if you have a 1 ohm stable amp?

It would work just fine. What's your real question, how to create a 1-ohm load? That is determined by your speakers and has nothing to do with the amp. Choose your speakers and then choose an amp to power them, or choose your amp and then design your speaker system to match the amp's capabilities.

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Master Asylum

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Posted: March 09, 2005 at 10:44 AM / IP Logged

This is my own opinion, but it seems like people gave more definitions than any real answer... :/ I think what he was wondering is how the amp "knows" what impedance to run off basically. I don't know well enough how to answer but it just seemed like there wasn't much of an answer.

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DYohn

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Posted: March 09, 2005 at 10:48 AM / IP Logged

An amp does not "know" anything. It will deliver as much voltage and current as it can into whatever load is connected to it. That is the only answer possible. The user creates the ohm loads by wiring the speakers. The amp doesn't care. It will do its thing regardless (until it fries, blows a fuse, or blows your speakers. Then the system simply stops working.)

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