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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
terry9
2,341 posts
 
Is it possible that this is a warm-up effect?

Electronics can perform better with warm-up. I find that my amps improve for about 16 hours, my preamp for about 4.

So, if you plug into one outlet and let everything warm up for ages, it will sound very good. When you power it down, change outlets, and power it back up, it won't sound good for some time, until it has warmed up for an equivalent period. 

That is, if your equipment is subject to the same limitations as mine. Could this be the source of your observation?

helomech
1,687 posts
 
Am I hearing things?
Yes
mickeyb
575 posts
 
General contractor here. You can NOT use a 30 amp breaker with a 20amp rated outlet. It could over heat and cause a fire. 
Fix that ASAP and stick with a 20amp outlet and you should be good. You shouldn’t need more than 20 for audio. 
brayeagle
362 posts
 
Agree with mickeyb

I had a licensed electrician install a 20 amp circuit for a 4bSST2  (thinking I might later run a pair of 7 monos.) It has the 20 amp circuit breaker. The remainder of the system runs via a 15 amp circuit. No problem

My home is 100% electric, and the major sources of use are the cooktop, water heater and dual  heat pumps/air handlers.
erik_squires
16,118 posts
 
+1 @mickeyb 

Do not put a 30 Amp breaker on 20 amp wiring/outlet. This is life endangering, not to mention illegal. 

Of all possible tweaks, don't do this one. 
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