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15A vs. 20A power cord questions

I'm installing dedicated 20A lines with 10AWG cable and Furutech GTX-D 20A wall receptacles. I am currently using the standard IEC power cords that came with my Rogue Cronus Magnum and VPI Scout 1.1. 

I rather not upgrade the power cables at this time. I would like to see the effect the dedicated lines and outlets have first. Are there any issues with running 15A power cords into a 20A outlet and line? Would a 20A power cord possibly sound better or is it just a matter of the blade orientation?
asp307
zephyr24069's avatar
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zephyr24069
1,241 posts
 
asp307: What I meant was their first point at which I considered them and the sound profile of the system with them, fully broken in. I heard another increase in sound quality somewhere in the 1000-1500 hour range; after that, no other increases in quality/etc...were heard.  500 hours with a duplex receptacle is easier to put on than some would think. It does not take 6-8 months as mentioned above "assuming" you connect constant current drain devices (amps, house fans, etc..) to them and leave them powered on 24x7.
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noromance
9,501 posts
 
This burn-in time is daft. Who can possibly hear qualitative improvements over a period of 6-8 months? What about power tube wear? Capacitor deterioration? Power line noise, personal physical changes, ionic pollution due to weather? Daft I tell you.
I use a 8/3 NM-B 40 amp run to a NEMA L5-20 receptacle.
jea48
4,312 posts
 

It does not take 6-8 months as mentioned above "assuming" you connect constant current drain devices (amps, house fans, etc..) to them and leave them powered on 24x7.

LOL.... You might want to take the time and reread my posts. The 6 to 8 months time frame is if the OP turned on and listened to his system on average 2 hours a day and then the amp was turned off. Surely you are not recommending the OP leave his tube amp on 24/7. That would be just silly.

Burn-in hours are burn-in hours.

Whether 2 hours a day on average, 500 / 2 = 250 days / 30 avg days in a month = 8 months. OR 2 hours X 7 days = 14 hours a week. 500 hours burn-in time / 14 = 35.7 / 4.5 weeks in a month = 7.9 months. 8 months.

OR

A box fan load running 24 hours a day, 7 days a week. 7 X 24 = 168 hours.

500 / 168 = 2.98. 3 weeks, not 6 or 8 months.

asp307 OP
159 posts
 
Regarding the phono-pre, this is down the line. I currently only use an integrated and a turntable. Which duplex should the turntable be plugged in to?

Will a burned-in/not burned-in receptacle make a difference for the turntable motor?

Do I need to burn-in each of the 4 receptacles. For instance, just because i’m running a box fan in one receptacle, that is not burning-in the entire duplex, correct?
jea48
4,312 posts
 


Regarding the phono-pre, this is down the line. I currently only use an integrated and a turntable. Which duplex should the turntable be plugged in to?

Not knowing anything about a VPI TT motor I would not plug it into the same duplex receptacle as the amp. That’s just my opinion.


Will a burned-in/not burned-in receptacle make a difference for the turntable motor?

I doubt it. Again, just my opinion.

I don’t know why you couldn’t plug the TT motor into the non dedicated branch circuit receptacle you were using for your entire audio system before. Save the Furutech receptacle for future.

The only thing you might want to check, (and I don’t know if it would mater), is if the old wall receptacle branch circuit is fed from the same Line, leg, in the electrical panel as the new dedicated branch circuit.

You could check it with a volt meter.


Do I need to burn-in each of the 4 receptacles. For instance, just because i’m running a box fan in one receptacle, that is not burning-in the entire duplex, correct?


Yes, each receptacle of each duplex will need to be burned-in, that you want to be burned-in.


Check out the link below. Scroll down the page of the link to the metal current carrying contact guts in side the duplex receptacle.

http://www.vhaudio.com/furutech-gtx-d.pdf

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