New dedicated line & outlets sound worse, not better- HELP!

Did you pre burn-in the Porter ports first before connecting them to the new dedicated branch circuit?

What you described is how a system will sound if the receptacles are new and not burned in. 

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I would suggest trying a Synergistic Research Black A/C wall outlet with your new circuit.

The outlet looks like it is made by Pass & Seymour.

http://www.lowes.com/pd/Pass-Seymour-Legrand-20-Amp-125-Volt-Black-Indoor-Duplex-Wall-Tamper-Resista...

Is the back strap made from galvanized Steel on the Synergistic Black AC outlet?

It sure looks like galvanized steel.

http://highend-electronics.com/products/synergistic-research-black-uef-duplex-receptacle

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I did not comment on selection of the Porter Ports - they are cryod Hubbell hospital outlets. Let’s let lincnabby burn them in first. The Hubbell outlets are brass and in my experience, brass elements tend to be on the sterile side and have a little bit of shouty effect in the highs.

Not from my experience. Of course it may depend on the audio equipment the receptacle is feeding.

From my experience the Hubbell Extra Heavy Duty Industrial Series HBL5262 (15 amp) and 5362 (20 amp) duplex receptacle is slightly on the warm side of neutral.

http://www.hubbell-wiring.com/press/catalog/a.pdf

See page A-12

As for the Hubbell duplex receptacle Albert Porter uses for his Porter Port, I remember reading in the past, he pays Hubbell to mix parts of hospital grade and HBL5262/5362 Extra Heavy Duty to build his outlets. I am not sure if he continued the practice or not. Special order can be expensive.

I have not been able to find an ad on Agon of Albert’s Porter Ports to check what the outlets are now.

Albert Porter’s old style cryo’d Porter Ports were the old stock Hubbell slim/Compact 8300H Hospital Grade 20 amp duplex receptacle. Back strap is non plated brass as well as the contacts, non plated brass. The sound was pretty much neutral. Hubbell no longer makes the 8200H/8300H hospital grade duplex receptacle in non plated contact and back strap.

Example of the old stock slim/Compact HBL8300H Hospital Grade duplex receptacle:

http://www.jzsupplies.com/lot-of-2-hubbell-hbl8300h-i5029065/

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Here is another older, I believe, Hubbell catalog.

http://www.hubbellcatalog.com/wiring/catalogpages/H5254.pdf

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I just checked the Agon Classified ads and found Albert Porter has just recently listed his Porter Ports again.

Quote from ad:

Hubbell now manufactures the Hospital grade 8300 with magnetic steel back strap and galvanized plating. I have Hubbell hospital grade interior parts, unplated in the heavy duty 5362 body with non magnetic, brass back strap. Some are IG and some standard, ask if it matters to you.

Sound in my system is identical and available in original Ivory and white with black and gray frequently in stock and always available special order.

These are Hubbell rated for 20 amp and a perfect replacement for both 15 amp and 20 amp outlets. These upgrade both the quality and connection of your electrical.

This are a special order un- plated version. Other outlets that have plated connectors (Nickel, Silver or Tin), are designed to hold up in harsh chemical and / or oxygen rich environments. This is not only unnecessary for our audio systems, it harms the quality of sound.

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https://www.audiogon.com/listings/ac-distribution-porter-port-porter-ports-outlets-cryo-various-colo...

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How do we know it's not our neurons that are burning in and getting used to a new sound?

Guys,

Do your homework on Contact Paste before you go to the hardware store and buy something off the shelf. Not all contact pastes are created equal. Some goes on smooth and greasy but after the passage of time will dry hard as a rock! Try cleaning that out of a female contact like a wall receptacle or female fuse clips, ect.

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The third time you listen to a good recording you hear more than the first time. After becoming familiar with a piece of music I enjoy it more.

Purely Subjective! 

Now as for burning in an AC receptacle, through experimentation, a person can prove the receptacle burns in over time when a sufficient load is connected to the receptacle.

Have YOU ever actually experimented with burn-in of electrical outlets? Or are you just voicing your opinion?

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@ corepowertech,

 I don't see anything on your Web Site that says the output of your 60/120Vac balanced power system equipment is GFCI (Ground Fault Circuit Interrupter) protected.  Question, is it GFCI protected?

Is your power equipment Listed, safety tested by any recognized third party testing laboratory, such as UL or CSA?

http://www.corepowertechnologies.com/#home

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Our Hubbell Outlets are not GFCI - we do have a fast acting Circuit Breaker in place - works well.

At the receptacle/s is there a difference of potential, voltage, from either Hot contact to the "U" shaped safety equipment ground contact of 60Vac?

If yes, I believe, that meets the definition of a separately derived 60/120Vac grounded Technical Power System.

Jim