its about experimenting to see what subjectively sounds better
You can focus your energy on other aspects of audio that is more rewarding.
Experimenting with speaker wire falls into the crazy audiophile category where
laws of science don't apply.
Speaker wire is much simpler than interconnects and all you need to do is get the
wire specifications, resistance, capacitance, inductance and throw those numbers in
the formula to see if the wire itself will form a low pass filter that falls in the audio
bandwidth.
http://www.caraudio.com/forum/showthread.php?t=201005
If you look at this, you can see that the wire length plays a big role. If your install has
a large run of speaker wire from the amp to speaker, enter the data into the formula
to see if a problem might manifest and if so, then you need a different wire solution.
You don't have to keep swapping out wires and listening to see which cable sounds better,
that would take you forever to figure out. This example below shows the filtering effects
of generic speaker wire. I believe in this example {speaker wire}, the cable capacitance
is a moot issue because of the amplifier output impedance [is very low] and the load is also
very low in impedance [the speakers], so inductance in this example plays a bigger role.
The 0.3mH per foot inductance was actual tested data from the Audioholics wire test,
that number was the worse cable tested so I used that number in the example.
A 100 foot run would give you a Fc = 42khz which is fine. If you were running a few
hundred feet of this super lame wire, then you might experience a filtering effect
and need to upgrade to better wire.
The bottom line is. Even cheap speaker wire in a typical home/car install [less than 100 foot run] shouldn't pose any filtering effects. But if you were doing a high SQ install with a 500
foot run, you should do the math on the wire you chose to make sure it's ok.
Speaker Wire Inductance
Speaker wire is like an inductor and when you connect your amplifier
to speaker wire to the speaker, it's as if you are adding an inductor in
series just like a first order woofer crossover.
The math is simple.
Fc = RL / (2pi L)
Fc = -3dB point, cutoff frequency.
L = cable inductance
RL = speaker load
The worse speaker wire of the bunch tested has an inductance of 0.3 uH
per foot. Lets assume you are going run 100 foot between amp and speaker.
L = 0.3uH x 100 feet = 30 uH
RL = 8 ohm speaker
Fc = 42.4khz
http://www.caraudio.com/forum/showthread.php?t=201005
