TIP: Click on subject to list as thread! ANSI
echo: audio
to: KURT J. TISCHER
from: MIKE DALE
date: 1996-08-14 23:59:00
subject: Re: ohms

 -> KJ> resistance to current flow the speaker has.  The best way to see
 KT> if your
 -> KJ> speakers will work on your 6 ohm minimum outputs, is to test the
 -> KJ> speakers on an ohm meter or multi-meter for their true
 KT> resistance.  Even
 -> Hi Kurt, How would I go about testing the speaker? I've got an ohm
 -> meter. Does it include takeing out the speaker?
 KT> Well, not necessarily.  All you really need to do is put the positive
 KT> pin of the ohm-meter on the positive lead or connector of the
 KT> speaker and same for the negative and see what the reading is.
 KT> Actually, if you have the pins reversed I dont' think it will matter
 KT> much, the resistance is still the same.  If you are talking about some
 KT> kind of 3-way enclosure, then definitely measure the resistance of the
 KT> whole circuit, not just the woofer, because the passive crossover will
 KT> add some resistance, too.
It Shouldn't really matter what it says through the multimeter... The 
position of the voice coil will change the resistance of the circuit. 
Therefore the best way to tell is that if the amplifier or whatever it was 
that wants no lower than 6 ohms, then what you should do is go by the RATING 
on the speaker.  If it is rated at 8 ohms.. then use it by all means... if 
four ohms, then don't.  If you can't find it, then look on the spec sheet or 
call the manufacturer.  Oh, one other thing... If it is 8 ohms... hook it up 
by  itself or in series with another speaker.... Hooking two 8 ohms in 
parallel would cause a drop to 4 ohms and therefore would wrek whatever if 
was not supposed to be lower than 6...  The ratings is what you have to go 
by.  The multimeter test doesn't prove a heck of a lot.
                                       -McDale
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