Slow speaker cables?

As Almarg and Jcharvet have alluded to, I judge a cables speed, fast or slow, depending on how it attacks a note and releases it (decay). Attack and decay are the primary contributers to the timbre of a musical instrument. Attack is how clear is the leading edge and decay is how long the note takes to dissipate.

Some cables attack and release a note quickly and move on to the next note, these cables tend to be called fast, revealing, articulate or transparent, etc. Other cables tend to hold on to a note longer, allowing it to resonate or decay longer, these cables tend to be called slow, warm, musical, vibrant, etc.
It doesn't have to do with the musical timing of the instruments themselves, but how the notes that they play resonate, which determines how the timbre of the instrument is perceived.

I'm slightly amazed that the our hearing can actually pick up on attack. It seems that it really is milliseconds that we are talking about here. I'm also thinking that, just like some people can break down all the qualities of a particular wine (not me by the way), others are better at picking up on all of these nuances of audio qualities. I've been doing some comparisons of speaker cables, and what I originally thought as slight increases in quality of sound are actually clearly becoming worth the price of admission. Why is it that with some cables I am barely able to hear instruments in the background that with other cables just get muddled up? Is it because they are "faster", i.e. quicker attack and less decay resulting in more space between notes resulting in better definition and less congestion within a certain piece of music? If so, then why also can I hear certain instruments better even if they are overlapping other instruments? Less distortion? Anyhow, good discussion! Thanks guys, I'm getting some good knowledge here!

Al, does the fact that I'm hearing an improvement rather than just verifying one on instrumentation outweigh any negative impact on the amp? Doesn't the fact that we're dealing with wire no more than 6" long render inductance a non-issue? I'm guessing the Acoustat amps were built this way for the reason you mentioned. But also with the ability to drive low impedance loads such as the Acoustat speakers. So does it not stand to reason inductance is not an issue? BTW, the Acoustats are AB amps. Incidentally, so are the ones I've experimented with. They are also capable of driving low impedance loads.

Just wait until cable PRAT (Pace, Rhythm, and Timing)discussions start up. Yup, cables that affect pace, rhythm and timing.

This stuff never gets too goofy. As long as you believe.

Music is transient in nature. It is not so much a bunch of sine waves layered as it is a multitude of transients crammed together. And cables, as much as any other piece of equipment, can blur the transient nature of music.
There are many ways that this can take place in reality, but I'll use just one as an example.
Even though a kick drum is tuned very low on the frequency spectrum of what we hear, there is a very sharp leading transient spike that is found at the beginning of each smack of the drum head. Cables, and all other components, can very easily mask this spike. This happens as specific distortion mechanisms within a cable design impact the signal. When this leading edge spike is either diminished or completely masked we end up hearing only the harmonic aftermath of the drum strike.
This has the effect of delaying what we hear from the drum very slightly.
Since the kick drum is typically whats sets the pace for the entire piece of music, having it sound delayed in time causes it to be behind the rest of the music. When a drummer is consistently late in his timing they call that "chasing the beat". The real world effect of this is that is causes the music to sound "slower" and more disjointed.

This is the main reason why cables that are known for high frequency clarity are also often known as being "faster". These types of designs convey the transient nature of the music differently than others, many times better.

Can we actually hear this micro second delay caused by the missing transient leading edge? Actually, we absolutely can.
Consider the fact that tests done on Ray Charles showed that the consistency in the timing of his finger snaps were on the order of milliseconds. Given what's known about the physiology of the human body, which is to say the actual physics and biology of snapping your fingers in time, we know that one must be able to "hear" changes in time at least an order of magnitude greater than what we can actually create.

In the end, cables that are most accurate in the time domain are the ones that get the transient nature of the entire musical spectrum correct. They are the ones known as being "fast". They are also the ones that tend to get your foot tapping as well. Cables (and other equipment) known for being "slow" mask much of the transient nature of music, causing it to sound more "smooth" as well as typically less detailed.