Speaker cable lengths doe it matter they are not equal???


Hello to all ...
This is my first time on this site so please pardon my "rookieness" at this. I am setting up a new system after being out of audio for years. My current setup demands that one speaker is relatively close to the components and the other not so much. In other words they will not be equidistant forcing me to have one speaker cable longer than the order a rough estimate is that one will be 8 feet and the other 16-20 feet.
The question is what is best:
1. Leave them different lengths
or
2. Make them the same length and hide the excess as best as possible on the closer speaker (would end up being coiled)

i understand that presumably the impedance would differ because of the length difference but would that be noticeable?? As I said I am no expert that’s why I came here to hear feedback from the experts out in audiogon land!
Thanks for your replies lets see what you all think........
qbndds

Showing 2 responses by almarg

Gdnrbob, thank you kindly. Qbndds, welcome to Audiogon!

As JL35 indicated this question has been discussed in a number of prior threads, and opinions vary. It seems safe to assume that no comprehensive body of experimental data exists on this question, encompassing a broad range of systems, rooms, listeners, and combinations of cable lengths. So all that is available is opinion.

It is certainly very possible, and perhaps probable, that it will make no perceivable difference either way. If it does make a difference, a majority of the opinions that have been expressed in past threads favors keeping the lengths equal. I see it differently, however, putting aside the question of the resale value of the cables.

The degree of virtually all explainable speaker cable effects (including those whose audible significance is debatable or doubtful) is directly proportional to length. That would include the effects of resistance, inductance, capacitance, skin effect, proximity effect, dielectric absorption, and propagation delay, among several others that could be cited. The one exception to direct proportionality to length that I can think of would be antenna effects, which in many and probably most cases won’t have any significance, and if there is any significance of antenna effects it figures to be completely unpredictable with respect to length.

Therefore:

**If** the cables are such that their intrinsic sonic characteristics and the interaction of their technical characteristics with the particular amp and speakers would result in the longer cable behaving in an essentially neutral manner (i.e., having effects on the signal that are audibly insignificant), then the shorter one will too.

**If** on the other hand the cables are such that the longer cable DOES NOT behave in an essentially neutral manner in the particular application, then it seems to me that there is no way to predict which of the following two alternatives will be better/preferable:

(a)Using equal lengths, thereby making the colorations introduced by the cables the same.

(b)Using unequal lengths, thereby reducing/minimizing the colorations introduced by the cable in one channel.

And in fact I see no reason to rule out the possibility that (b) might actually sound BETTER than (a).

The bottom line, IMO: Choose whichever alternative you prefer based on non-sonic considerations. And if you decide to go with the equal length alternative, as suggested by Gdnrbob it would seem to make sense to try to avoid tight coiling (or closely spaced paralleling) of the excess length in one channel. Although, again, that may not make any difference.

Regards,
-- Al

Hi Bob,

As far as I am aware Transparent and the other makers of cables that incorporate network boxes haven’t ever published schematics or other detailed information defining the circuits that are in those boxes. Without that kind of information, and conceivably even with it, I can’t provide a meaningful answer to your question.

But in any event no such box will convert the wire that is being used into a transmission medium that is theoretically ideal (i.e., zero resistance, inductance, capacitance, dielectric absorption, etc., at all frequencies that could conceivably be relevant), and so the same kinds of considerations that have been stated above for boxless cables would seem to apply, albeit perhaps to a different degree. As well as the same dependence on opinion, since as I said earlier it can be presumed that "no comprehensive body of experimental data exists on this question, encompassing a broad range of systems, rooms, listeners, and combinations of cable lengths."

Also, although it doesn’t necessarily directly relate to your question, I’ll add FWIW that I would imagine that in at least some of those cases the values of the parts in the boxes (ohms, pf, etc.) might be chosen differently for different lengths of the particular type of cable.

Best regards,
-- Al