|
|
|
|
|
|
|
|
|
Prepping
the Plug End of Cable
Prepping
the Plug End of Cable
Polarity
Before
we prep the plug end of the cable we need to know a few things first.
I
seen this asked a lot in the Klipsch Forums.
How
do you know what's the positive end on the plug?
What
surprised me was the lack of an answer, because it is important to get
the polarity correct for the drivers(speakers) to operate properly. When
the driver receives the signal from the amp, it causes the cone to be
"pumped" outward.
Granted,
you'll still hear sound from the speakers if the polarity is reversed,
but it's kind of "muddy"(to my ear at least).
Another
reason for checking polarity is to keep the speakers in phase. That is
the speaker cones are all going in or out at the same time, if the left
and right are out of phase it will sound like the sound is coming from
the sides with a mono sound, it should sound like it is in the middle.
How
to find the "Plus" side.
The
tip of the plug is the "Plus" side.
How
did you find out?
This
is where the Ohm Meter comes into play. It's a quick and simple procedure.
Take one of the speaker wires that came with the set. Touch the wire with
the "positive"(red) stripe, with one of the probes from the
ohm meter. With the other probe, touch the tip of the plug. Your meter
should read 0 resistance.
![]() Now
if you don't have a meter, that's OK, I did the figuring out part for
you, this is one of the reasons I wrote this article.
Another
way to check, without a meter, is to use talcum powder, yes you read that
right!
The
only downside to this way of testing is, you do it after the wire is made.
Lay the speaker so the cone is facing towards the ceiling, play some music
at a normal volume, take a very tiny pinch of powder and sprinkle it near
the center of the cone and watch it. The powder will "climb"
up the cone, if you have the polarity backwards it will gather in the
center of the cones lowest point.
Use
the same procedure to find out the "plus" side in the plug.
Hint: it's the short one. In the picture below, the red probe is touching
the "plus" side connector in the plug.
![]() OK,
Let's Continue
Again,
with the razor blade, split the wire about 1 inch.
Place
the wire up to the contacts in the plug, making sure the wire with the
white stripe("Plus side"), is touching the "Plus"
contact. With your wire cutters, cut the other wire where it lines up
with the other contact. See pic below.
![]() Here's
what you should end up with.
![]() Now
strip the ends about 3/16 of an inch, twist, clean, tin.
Surprise!
Pop Quiz
If
you've been paying attention, you should be asking yourself, at this point.
Why
are we prepping the plug end of the cable for soldering, when the plugs
are "solderless"?
|
Try These Mods! |
Copyright © 2002, Justin Scott, SoundWise. All rights reserved