Well, I just bought a DMM that can read up to 400 ohms.

I tested my speakers with it and got the reading's I was looking for. Unfortunatly I have a few details I have to work out with my speakers...one speaker impendance reads 400ohms? Well got to go thanks for the help. [img]graemlins/beer.gif[/img] [img]graemlins/puke.gif[/img]

 

Halo you are reading RESISTANCE not impedance. Resistance is part of impedance, as is inductive reactance and capacitive reactance.

 

What is the difference between resistance and impedance? I've gathered that resistance is only one component of impedance, but what are the other components and how are they related to each other? Is there an equation or something that might help me understand?

 

what are you using as a source material to measure your impedence?

 

To clarify a little...

A DMM is going to measure DC resistance which is also nominal impedance... (Note that this # changes while the speaker/sub heats up from use)...

Impedance is the resistance AC frequencies see... It will rise as frequency rises because of the voice coils inductance....

You can measure impedance with a DMM, but you need a few other iteams as well... anyone interested can do a websearch on setting up a wheatstone bridge....

[ October 07, 2004, 09:06 PM: Message edited by: Haunz ]

 

Did a wheatstone bridge in trade school... great little unit for finding the resistance of an unknown device.