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Subject:
From:
Colin McDonald <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Mon, 7 May 2007 18:23:32 -0600
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Hi:  if i understand what you are wanting to do, you want to insure your 
speakers are in phase, or put them out of phase for different responses.
If you want to test if your speakers are hooked up properly and are in phase, 
use a regular 9 volt battery and touch the terminals of the battery to a pig 
tail or to the speaker connecter.  When you  do this check which way the cone 
is going, either in or out. If you touch the posative terminal of the 9 volt to 
the posative terminal of the speaker connecter and the negative to the 
negative, and the speaker pushes out, then the speaker is hooked up probably 
inside the cabinet.  If it pulls in towards the magnet, then the terminals are 
backwards.  Then, simply hook the speakers up to the amplifier posative to 
posative and negative to negative.  You can insure 
you use the right wire of a pair by using a multi-meter continuity checker to 
tie a knot int he end of each wire on the end of a run...I usually knot the 
posative wire.  For running different impedance configurations and various 
phasing configurations you can play around with hooking one speaker up 
backwards to have it out of phase.  Sometimes when you are running multiple 
subs,, having them out of phase with each other can add bass oddly enough. So 
one is sucking, one is pushing at the same time...a bit hard on amplifiers, but 
can give you some great deep bass.
Is this what you were looking for?
73
Colin, V A6BKX

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