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can't wire at 2 ohms?


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DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: May 28, 2008 at 1:19 PM / IP Logged  
No one has been able to explain what to you?  That the measured DCR is different from the rated impedance?  That's how speakers work.  If you have them wired for a 1-ohm net load and are measuring 2 ohms, it's probably simply that the DCR is different from the impedance and since ratings on speakers are never 100% exact and you got lucky that the net load is high enough for your amplifier to withstand.  No big mystery.
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klctexas 
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Posted: May 28, 2008 at 2:00 PM / IP Logged  
Well I guess that explains it, except for what DCR is. I wonder why nobody else was able to tell me that?
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joch1314 
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Posted: May 28, 2008 at 2:10 PM / IP Logged  
I agree with DYohn... the speakers impedances are never exactly what they say they are, I've seen supposed 4 ohm coils measure as high as 5 - 5.5 ohms.  helps when you're trying to get two 4 ohm dvcs to a two ohm load, even though in theory you're never gonna get it to 2 ohms!  sometimes you will, your also gonna get some resistance with the speaker wire hooked up, further changing the resistance shown to the amp!!!   AWESOME
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DYohn 
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Posted: May 28, 2008 at 2:25 PM / IP Logged  

klctexas wrote:
Well I guess that explains it, except for what DCR is. I wonder why nobody else was able to tell me that?

DCR = DC (direct current) resistance.  It's what your ohm meter measures and is determined by the materials in your voice coil.  This is different from impedance, which is caused by the magnetic properties created in the the coil of wire called the voice coil by the changing current due to the AC frequency of the signal you are feeding it.  I don't know why others couldn't tell you that because it is very basic loudspeaker theory.  I suppose it's because they really don't understand how loudspeakers work.  can't wire at 2 ohms? - Page 2 -- posted image. 

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