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Multi-Way Conventional loudspeakers with crossovers

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Old 1st February 2004, 06:52 PM   #1
fireman is offline fireman  Canada
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Question Which is which ?

I got my TB W3-871S in the mail last week. I am about to put the final touches on my first two "rough" enclosures. But before I go ahead and put the drivers in, I've gotta ask a stupid question.

There is a wide and a narrow connector on the speakers. Which one is the positive and which one is the negative ? I guess there must be a convention for this kind of stuff but I don't know it. Can somebody help me ?

Let's hope I'm finished before the Superbowl. I'll be able to break them in as I watch the game.
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Old 1st February 2004, 06:58 PM   #2
GM is offline GM  United States
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Standard convention is the wide one is the positive, but to be sure, if you have a 1.5V battery and some insulated wire available you can easily check it.

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Old 1st February 2004, 08:20 PM   #3
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Take a close look at the terminals. You will see that TB has kindly moulded in a "+" and "-" into the terminal strip.
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Old 2nd November 2004, 04:11 PM   #4
EC8010 is offline EC8010  United Kingdom
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Quote:
Originally posted by GM
Standard convention is the wide one is the positive, but to be sure, if you have a 1.5V battery and some insulated wire available you can easily check it.
That's true, you can check with a 1.5V cell. However, DC from the cell is below resonance and we operate moving coil loudspeakers above resonance, and there's a 180 degree change of phase between the two. This means that if the positive terminal of the cell moves the cone towards you, this is actually the negative terminal.
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Old 2nd November 2004, 05:26 PM   #5
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Standard convention applies with the W3-871S.
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