2. cables
  3. 137326-1252

Am I hearing things?

I just an extra  new dedicated line run beside the other one. with 10 gauge wire, 30 amp breaker and a 20 amp rated outlet. I don't think it sounds as good!!! What the hey. A little shrill in both vinyl and CD. I'm comparing from what it sounded like last night. Does electricians wire, breaker and outlet have to burn in? Am I alone in this. I'm have a whole system AC but in and the temp got up to 80. Maybe that is why. Also I'm listening at 11 am EST. So the power grid may have an affect. Did I just answer my own question or have other people experienced this. The original dedicated line was put in in 03 with 12 gauge wire, 20 amp breaker and a 15 amp outlet. Are these 2 lines picking up interferrence? 
128x128blueranger
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lak's avatar
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lak
4,623 posts
 
I totally agree with cleeds.
The exception would be a 30 amp breaker with the correct size wire feeding a sub-panel and from the sub-panel use 20 amp breakers with the correct size wire.
I also agree with others that said to use the new dedicated line and outlet for some break-in time, I don't pretend to totally understand the concept but break-in time is important. When you aren't listening to the system run a fan on that new dedicated line and outlet.
blueranger's avatar
blueranger OP
719 posts
 
Im running system 24/7 breaking in the refurbished  Marantz SA-10 and BP 17 demo unit. The SA-10 hasn't changed that much compared to when I first got the SA-8005. I will get tbe 14b3's cherry. I will break her in good!!!
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prof
3,471 posts
 
blueranger,

I have not seen very plausible looking arguments to establish that all those things need "burn in" and change sound.

But it is very well established that our perception alters readily.

On an anecdotal level: I often play around with the positioning of my speakers, distance, angling, height, tilt, just to test stuff out.

I notice that some times I’ll do something like raise and tilt the speakers a bit, and it may result (due to acoustics) in an alteration of the sound that I find a bit good, a bit bad. Say, a little more emphasis in the presence region, a bit less warmth down low.

But over time, I adapt. A week later, I may either find myself MORE cognizant of the things I don’t like, or LESS so. For instance, I may no longer perceive a lack of warmth, and now it sounds "right" to me. Nothing has changed physically about my system; my brain has adapted,  changed my perception.

In fact, it’s been a subject of discussion at various points on here and other forums that the way we perceive our systems can seem to change even daily. What was "wow" yesterday may seem "Meh" today.

Maybe you do have some issue on your AC line causing what you hear.But in terms of "break in" being the issue:


Consider the elasticity of our perception, against whether there is really good technical reasons to think your new AC line needs "break in."




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