Non inverting polarity?

A signal with a (half-cycle) pulse of positive (or 'noninverted') polarity creates a positive push of a speaker cone--TOWARDS you, the listener. A negative- (or 'inverted-')polarity signal will cause the speaker cone to pull away from you.

I don't know anything about XLR-terminated interconnect (except I have none).
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"Jeffreybehr...I just found out that all JBL loudspeaker drivers have polarity opposite to other brands. A positive voltage applied to the + terminal causes the cone to pull in (not push out). So, if you think absolute polarity matters, and you have JBL speakers, hook them up backwards."

Hmm...I didn't know that.

An easy way to test your speakers is with a 9-volt battery. After disconnecting the positive speakercable lead, use jumpers from the battery to the speaker terminals to see which way the cone moves initially. If the cone moves out--ie toward the listener--when the positive (small) battery terminal is connected to the red terminal, the speaker is wired correctly. This test works well for bass and midrange drivers but is really tough to see on a tweeter because only the initial spike of the DC voltage passes the crossover. Maybe using a magnifying glass would help one see it move.
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