What are we listening for during break in?


Is it time for a reality check? A few days ago a post was started which asked a question concerning burn in of interconnect cables. The consensus of answers agreed that this was a necessary function with no opposing view. The recommendation that got me thinking was to install the ICs between cd player and preamp and use a test disc for 250 hours. My immediate reaction to that bit of advice was "give me a break." That is roughly equal to listening to 250 cds. Considering the amount of time I spend listening to music, it would take me six months to break in ICs.
I have experienced a sonic change after new speaker break in period so I'm not argueing break in doesn't occur. Whether a sonic difference occurs after ICs break in is another matter.
My question is, what are we listening for when we run our equipment for 250 hours just to break in an IC or modification? I don't mean why listen to music, I mean what sonic difference are we hearing? Is it better, worse, different, What the?
timrhu

Showing 1 response by hemidakota

this is a copy of an e-mail from kimber cable that should settle this dispute, it is a fact that cables do break in period!

----- Original Message -----
From: [email protected]
To: [email protected]
Sent: Monday, September 05, 2005 2:45 AM
Subject: ** Kimber Kable TECHNICAL SUPPORT Request **

The following person has made a request for TECHNICAL SUPPORT:

***** PRODUCT INFORMATION *****

Model: kcag
Length: 1/2 meeter and 1 meter meters
Termination: rca
Problem/Concern Description: do cables actually break in/burn in and actually sound better over time? is this possible or am i crazy in stating that my system sounded better after being broke in/burned in for a week solid while i was out of town? if its possible, what exactly happened? thanks for your input.

Thank you for your inquiry. Kimber Kable products generally sound great right out of the package. However, Kimber Kable speaker cables do take approximately 50 hours to begin sounding more like their original design objectives, after which continued improvement is realized over the next several hundred hours. Kimber Kable interconnect cables begin to sound more like we intended after about 100 hours of significant signal flow. They continue to improve over the next 500 hours or more of use. Burn-in time varies due to the design and the materials used as well as the location within your system and the signal strength involved. The higher the systems overall quality, the more the effects of a longer burn- in period will be realized.

With our considerably equipped test facility we have been able to measure the effects of burn-in. Our research has led us to believe that burn-in is an altering of the dielectric as well as the possibility of the metal having an altered state. The voltage present in a signal has the ability to slightly alter the dielectric properties of the insulation.One analogy that has been used to describe burn-in is that of water flowing down a river. As the water flows down the river, the small stones that line the bed of the river are smoothed over in the direction of the water flow. The water finding the path of least resistance. Many books have been written on dielectrics and conductive materials without a definitive theory on burn-in having been established. Measurements and microscopic analysis have brought us closer to truly understanding this very real phenomenon, however making definitive statements on this topic may still be a bit misguided at this point in time.

Sincerely,

Todd Walldorf
Product Support & Sales
KIMBER KABLE