Do cables really need "breaking in"?


The post about whether speaker cables matter has inspired me to ask another question...do cables really need a break in period to sound their best? Some people say cables need to be broken in or played for a while before they achieve optimal sound.

This sounds to me like it was invented by believers in astrology. Isn't that break-in period just allowing time for the human listener to get used to them? Has anyone ever done an A/B test with new cables vs. used cables of the same type and noticed a difference?

All I know is that new Porsche or new bed (or new girlfriend for that matter) feels totally different after you've had it for a month versus the first day. Ever moved into a house/apartment/hotel and noticed all kinds of distracting ambient noise that seemed to disappear after you'd been there for a while. It's human nature. Even if cables needed a break-in period, how could humans tell, with all these other much more noticeable factors distracting them?
matt8268
Craig ... the concept of speakers (mechanical, with moving parts) breaking in is absolutely believable.
The post was referring to cables, not speakers.

1953 .. I don't think I scoffed, or at least I didn't mean to. I just pointed out that the ear can easily be fooled, as can the eyes. Please don't resort to capitals ... I can read lower case !
A couple of cautions about Sean's "protocol" for comparisons. The side-by-side mono test does not cut it: If the two speakers are not in exactly the same place (a physical impossibility, of course), you get room effects, which can be very audible. Second, it's amazing how little information you have to give a test subject to bias them. Merely telling them they are listening to two different cables sets up the expectation that they will sound different. That's why researchers don't use AB comparisons, but ABX tests, which require subjects to positively identify the X.

However, we aren't researchers. We're hobbyists.And objective though I may be, I wouldn't expect anyone to go to the trouble of setting up a proper ABX test. I only mean to suggest that we should be a little careful in how we interpret the more relaxed comparisons we actually do.
Bomarc, i agree that there is the potential for differences in perception when the speakers are sitting side by side as close as possible. However, listening directly on axis and in the nearfield ( i forgot to mention that part before ), the differences should be minimal at best. However, nothing is perfect, including ABX.

Since we are not concerned with imaging or soundstage ( we are in mono after all ), the basic things to listen for would be changes in tonal balance, transient response, inter-transient silence and harmonic structure. These are not just attributes of the cables under test, but how the equipment in the system loads into and responds to the specific impedances being presented to them. You are therefore not just testing for differences in cables, but which ones are most cohesive in your specific system. Sean
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