On 2 Gen, 17:56, wrote:
Hello all...

I recently installed a radio and stereo speakers in my car. The
speakers were a trashpicking find and they seem to work just fine. At
the time I wired them up, I didn't know which terminals represented +
and - on the speakers, so I took a guess and wired them both the same
way. The speakers had no marking to indicate polarity, other than a
"thin" spade lug for one terminal.

Just the other night I found the box the speakers were in. It has a
detailed wiring diagram on the side. According to the diagram I have
reversed the + and - connections on both speakers.

Over the years I've read a number of different views on the effect of
wiring speakers with reversed polarity. I've heard everything from "it
won't really matter if the speakers are both wired the same way" to
"the sound won't be as good because the speaker cone will pull inward
instead of being pushed out".

It wouldn't be hard to fix, but should I bother correcting the
polarity?

William

I don't know whether there is any standard among audio equipment
manufacturers that guarantees at the speaker output the same phase as
the original signal, and this could be the real issue. If there were
one, then I would suggest you correcting your polarity. Probably you
will soon agree yourself if you think of the sound that comes from a
bass drum vigorously hit by the pedal.
Antonio - Italy