[SOT] Testing Speakers

[bgsterling at bluebottle.com (Brad Sterling)]

<snip Tberk>

Divide and conquer my friend. Swap the Left for the Right components, one at
a time until you have revealed the trouble;

- Temporarily swap the leads from the Head Unit, Left for Right. Does the
problem follow or remain on that same side?

- Swap a speaker at the end of the chain, does the problem follow? (btw, a
9v battery makes for a decent speaker verify-er: it's got enough juice to
push or pull the 'cone' one way or the other.) Great for verifying Phase
also. (As in having all your speakers pushing 'out' together vs fighting
each other.

- Bypass the x-over, just on low power, and see if the Head Unit to Speaker
connections are OK.
<end snip>

I missed this when it came across the list, but I ended up taking this
approach after talking to the guy who gave me the amp and x-over.  I swapped
left to right at the x-over inbound, then at the outbound, and then at the
speaker connection off the amp.  In all cases, the problem didn't move.
Pointed to the speaker, so I pulled the door panel.  Everything was fine.
In the end, it was the Crutchfield supplied, wiring adapter that had a
poorly mounted bullet connector.  I put the connector on the adapter years
ago when I did the original install, but didn't use it (probably didn't
work, huh?).  A quick resplice and the problem is solved.  Thanks for the
input.

-Brad
'86 Scirocco 16v