Please Recommend a Duplex Receptacle

**Audiophilehi** · July 27, 2020, 11:57 AM

New construction for my listening room should start in 3 weeks or so. Would like to install some quality receptacles that don't break the bank. I would need about 8 to 10 receptacles so I would like to keep it around the $50.00 each amount. I would love to have the Furutech GTX-D (G) Duplex Copper Receptacles but that would run into a small fortune.

**Shadowfax** · July 27, 2020, 12:00 PM

Pangea has 2 new ones coming out in September, this one at $50 each and another model at $100 each

Pangea Audio Premier SE AC Outlet Gold Plated Phosphor

**Mr Peabody** · July 27, 2020, 12:11 PM

PS Audio used to have some in the $50.00 range but I think their entry is now $100.00 but I haven't looked in a while.

**Audiophilehi** · July 27, 2020, 12:36 PM

Thanks guy's! I'll add them both to my list.

**Darrel** · July 27, 2020, 12:46 PM

I use three PS Audio outlets. They are fairly cheap but, work well IMO.

Power Port Classic AC Upgrade Receptacle | PS Audio

**Speedskater** · July 27, 2020, 12:48 PM

I saw this link. They look just like some $195 receptacles. The price isn't too high, but I have no knowledge about the vendor.
HIFI Hi end MATIHUR Rhodium plated US AC Duplex Receptacles Wall Outlet Power Distributor|Extension Socket| - AliExpress

and the $195 version:
Audience HDAC - Positive Feedback

**Mikado463** · July 27, 2020, 01:38 PM

Don't forget the carbon fibre cover plates ! .......

Furutech Outlet Cover 104-d

**Dizzie** · July 27, 2020, 01:55 PM

Originally Posted by Speedskater

I saw this link. They look just like some $195 receptacles. The price isn't too high, but I have no knowledge about the vendor.
HIFI Hi end MATIHUR Rhodium plated US AC Duplex Receptacles Wall Outlet Power Distributor|Extension Socket| - AliExpress

and the $195 version:
Audience HDAC - Positive Feedback

Rhodium is currently selling at over $2000/ounce. Makes me skeptical of $21.85 before coupon.

**Dizzie** · July 27, 2020, 02:11 PM

Paul,

All outlets are not created equal. Neither is their intended use. Are some of your planned outlets used for more critical applications? Maybe splurge for a couple where the quality might be more important. Others can be swapped out later if you want.

**LenWhite** · July 27, 2020, 03:24 PM

Perhaps you can swing a few Furutech receptacles for your stereo equipment. I think it would be well worth the added expense as the power coming into that room is what you'll be listening to.

I'm using the Furutech/GTX-D NCF(R) supplied power via a 100A subpanel with four 20A twisted pair wiring for each audio circuit with the neutral and hot wires wrapped on 2" centers and the ground wire placed parallel in PVC conduit. A white paper presented at the 2010 AES 129th Convention shows this method has the lowest ground voltage induction tested.

**Audiophilehi** · July 27, 2020, 04:20 PM

Originally Posted by Dizzie

Paul,

All outlets are not created equal. Neither is their intended use. Are some of your planned outlets used for more critical applications? Maybe splurge for a couple where the quality might be more important. Others can be swapped out later if you want.

That’s a great suggestion. I might splurge for 3 of the better outlets. One for each of my PS Audio BHK Mono’s that will be plugged directly into the outlets and one for my Shunyata Denali v2 that will have some of my source and DAC equipment. The rest will be Hubble outlets for the rest of my equipment.

**Audiophilehi** · July 27, 2020, 04:21 PM

Originally Posted by LenWhite

Perhaps you can swing a few Furutech receptacles for your stereo equipment. I think it would be well worth the added expense as the power coming into that room is what you'll be listening to.

I'm using the Furutech/GTX-D NCF(R) supplied power via a 100A subpanel with four 20A twisted pair wiring for each audio circuit with the neutral and hot wires wrapped on 2" centers and the ground wire placed parallel in PVC conduit. A white paper presented at the 2010 AES 129th Convention shows this method has the lowest ground voltage induction tested.

Ditto Len with the above comment. Thanks for the great suggestions.

**Jack** · July 27, 2020, 04:36 PM

Paul

The Hubbell 5362's are very good outlets if you don't want to splurge on the "big buck" outlets for all ten. Pass & Seymour/Legrand also makes very similar outlet. I seem to remember at some point Caelin making the same recommendation for high quality value outlets.

**BlueFox** · July 27, 2020, 04:50 PM

Shunyata

image.jpeg

SR-Z1 Outlets - Shunyata Research

**Rnrmf** · July 27, 2020, 06:28 PM

My favorites of what I've tried:

1) Hubbell 5362 cryo'd and cooked from Take 5 Audio (ironically the cheapest; also the basis for the Shunyata SR-Z1)
2) Audioquest Edison - silver plated

On the fence about:
3) Furutech GTX-D (G) - (In one system I like them (older stock); in my simpler system I tried them twice (2 different outlets) and couldn't believe how veiled they were; the resolution was terrible for delicate sounds)

Duplexes I didn't like:
4) Audience Hidden Treasure - rhodium plated, made by Cardas (if you like fast and dynamic, I've never heard anything like this duplex; it wowed me but I couldn't get past the midrange which I found too lean
5) Furutech GTX-D (R) - like the Audience, rhodium plated and I had the same perception of sound.

I'd love to try the Shunyata Copperconn, however, they're $300 or more.

**Audiophilehi** · July 27, 2020, 07:50 PM

Originally Posted by Rnrmf

My favorites of what I've tried:

1) Hubbell 5362 cryo'd and cooked from Take 5 Audio (ironically the cheapest; also the basis for the Shunyata SR-Z1)
2) Audioquest Edison - silver plated

On the fence about:
3) Furutech GTX-D (G) - (In one system I like them (older stock); in my simpler system I tried them twice (2 different outlets) and couldn't believe how veiled they were; the resolution was terrible for delicate sounds)

Duplexes I didn't like:
4) Audience Hidden Treasure - rhodium plated, made by Cardas (if you like fast and dynamic, I've never heard anything like this duplex; it wowed me but I couldn't get past the midrange which I found too lean
5) Furutech GTX-D (R) - like the Audience, rhodium plated and I had the same perception of sound.

I'd love to try the Shunyata Copperconn, however, they're $300 or more.

Thanks Christian...I don’t think Take 5 audio sell the Hubbell 5362 anymore. I was just on the website and didn’t see them.

I am leaning towards the Audioquest Edison for 3 of the outlets and the Hubble 5362 for the remainder.

**Jack** · July 27, 2020, 08:58 PM

Paul

I saw the cryo'd Hubbell's on Take 5 Canada about an hour ago for $39.95 Canadian so about $30.

**Audiophilehi** · July 27, 2020, 11:32 PM

Originally Posted by Jack

Paul

I saw the cryo'd Hubbell's on Take 5 Canada about an hour ago for $39.95 Canadian so about $30.

Thanks Jack. I found them.

**Hounddog** · July 28, 2020, 07:04 AM

Originally Posted by Audiophilehi

Thanks Christian...I don’t think Take 5 audio sell the Hubbell 5362 anymore. I was just on the website and didn’t see them.

I am leaning towards the Audioquest Edison for 3 of the outlets and the Hubble 5362 for the remainder.

I installed the aq Edison and had favorable results compared to psaudio (for about three times the price).

Sent from my iPhone using Tapatalk Pro

**Speedskater** · July 28, 2020, 08:03 AM

Originally Posted by LenWhite

...................................
I'm using the Furutech/GTX-D NCF(R) supplied power via a 100A subpanel with four 20A twisted pair wiring for each audio circuit with the neutral and hot wires wrapped on 2" centers and the ground wire placed parallel in PVC conduit. A white paper presented at the 2010 AES 129th Convention shows this method has the lowest ground voltage induction tested.

The AES paper:

Ground Loops: The Rest of the Story
Bill Whitlock, AES Fellow and Jamie Fox, P.E.
This paper was presented at the AES 129th Convention, 4-7 November 2010, San Francisco, CA, USA

ABSTRACT
The mechanisms that enable so-called ground loops to cause well-known hum, buzz, and other audio system
noise problems are well known. But what causes power-line related currents to flow in signal cables in the first
place? This paper explains how magnetic induction in ordinary premises AC wiring creates the small voltage
differences normally found among system ground connections, even if “isolated” or “technical” grounding is
used. The theoretical basis is explored, experimental data shown, and an actual case history related. Little
has been written about this “elephant in the room” topic in engineering literature and apparently none in the
context of audio or video systems.It is shown that simply twisting L-N pairs in the premises wiring can
profoundly reduce system noise problems.

http://www.jensen-transformers.com/w...ic-Version.pdf

**Audiophilehi** · July 29, 2020, 10:13 AM

So I have it narrowed it down to the 20A Audioquest NRG Edison and the Shunyata CopperConn outlets. I’ll start with 3 for my 2 Channel system. One for each amp and one to plug in my Denali 6000s V2. The rest of the outlets will be Hubbell’s.

Has anyone compared the Edison and the CopperConn?

**Audiophilehi** · July 29, 2020, 10:13 AM

So I have it narrowed it down to the 20A Audioquest NRG Edison and the Shunyata CopperConn outlets. I’ll start with 3 for my 2 Channel system. One for each amp and one to plug in my Denali 6000s V2. The rest of the outlets will be Hubbell’s.

Has anyone compared the Edison and the CopperConn?

**UltraFast69** · July 29, 2020, 11:11 AM

Originally Posted by Audiophilehi

So I have it narrowed it down to the 20A Audioquest NRG Edison and the Shunyata CopperConn outlets. I’ll start with 3 for my 2 Channel system. One for each amp and one to plug in my Denali 6000s V2. The rest of the outlets will be Hubbell’s.

Has anyone compared the Edison and the CopperConn?

Hello

My vote is the Copper Conn for the Denali unless you can $ swing 3 and consider a Shunyata power cable for the Denali when you can.

Sent from my iPhone using Tapatalk Pro

**Audiophilehi** · July 29, 2020, 11:21 AM

Originally Posted by UltraFast69

Hello

My vote is the Copper Conn for the Denali unless you can $ swing 3 and consider a Shunyata power cable for the Denali when you can.

Sent from my iPhone using Tapatalk Pro

Thanks....It looks like the CopperConn is the way to go. I do have the Delta NR feeding the Denali.

**Rnrmf** · July 29, 2020, 12:08 PM

deleted

**Bobvin** · July 30, 2020, 12:24 PM

I have a couple of shunyata zr71 I’ll sell you. I used Hubble hospital grade and put the Furitech covers on them in my room. The folks at Shunyata said the hubble’s are very good.

**Bobvin** · July 30, 2020, 12:24 PM

I have a couple of shunyata zr71 I’ll sell you. I used Hubble hospital grade and put the Furitech covers on them in my room. The folks at Shunyata said the hubble’s are very good.

**Audiophilehi** · July 30, 2020, 01:31 PM

Originally Posted by Bobvin

I have a couple of shunyata zr71 I’ll sell you. I used Hubble hospital grade and put the Furitech covers on them in my room. The folks at Shunyata said the hubble’s are very good.

Thanks Bob but I decided to go with the Shunyata CopperConn’s and cryo’d Hubbell outlets.

**Speedskater** · July 30, 2020, 02:02 PM

Never ever cryo a receptacle or breaker, some of the pieces & parts can't tolerate such a low temperature and it will invalidate the required 'UL' rating.

**Q3Di** · July 31, 2020, 10:59 AM

I am interested to have dedicated lines in my listening room, too. I may consider Shunyata, Cardas, Furutech duplex. What wire and guage size would you recommend to run from the duplex to the main breaker panel (approximately 30 ft)?

**Speedskater** · July 31, 2020, 03:24 PM

If permitted by local laws, I would use one step oversized Southwire brand Romex®.

**UltraFast69** · August 1, 2020, 02:14 AM

Originally Posted by Speedskater

If permitted by local laws, I would use one step oversized Southwire brand Romex

.

What sticks out choosing this wire?

Sent from my iPad using Tapatalk Pro

**Speedskater** · August 1, 2020, 01:40 PM

Southwire brand Romex® is the real deal, it's not a generic NM-B (Non- metallic) copy. The three conductors are held in correct alignment.
Bill Whitlock of Jensen Transformers (retired) tested it,and it worked great. There was another test of generic and it didn't.
Plus it's what Hone Depot and Lowe's sells.

**Don C** · August 6, 2020, 09:34 PM

Hi gang, semi-new guy here. (I joined some years ago, but haven't posted much.)

Poignant thread...

I recently ran a direct line from the panel to my listening room - Southwire 12/3 MC cable and used the better Leviton "industrial heavy duty" 20A outlets - nice, firm grip with a positive "click-in-place" feel when inserting plugs. A very big improvement for my system power - noise floor is significantly lowered and there's a superb enhancement in low-level system resolution. My ears are happy!

I'm considering next the inevitable outlet upgrade, and budget suggests the Sunyata SR-Z1 will be the best option for now. Anybody have experience with these? I know they're the "entry level" sockets from Shunyata, but at $100/ea, they fit the budget better than the other upgrades available. Any feedback is appreciated - thanks!

Don

**Don C** · August 6, 2020, 09:34 PM

Hi gang, semi-new guy here. (I joined some years ago, but haven't posted much.)

Poignant thread...

I recently ran a direct line from the panel to my listening room - Southwire 12/3 MC cable and used the better Leviton "industrial heavy duty" 20A outlets - nice, firm grip with a positive "click-in-place" feel when inserting plugs. A very big improvement for my system power - noise floor is significantly lowered and there's a superb enhancement in low-level system resolution. My ears are happy!

I'm considering next the inevitable outlet upgrade, and budget suggests the Sunyata SR-Z1 will be the best option for now. Anybody have experience with these? I know they're the "entry level" sockets from Shunyata, but at $100/ea, they fit the budget better than the other upgrades available. Any feedback is appreciated - thanks!

Don

**Speedskater** · August 7, 2020, 08:40 AM

'Don' those better Leviton "industrial heavy duty" 20A outlets, should be more than adequate for decades.

**BlueFox** · August 7, 2020, 12:27 PM

Originally Posted by Don C

I'm considering next the inevitable outlet upgrade, and budget suggests the Sunyata SR-Z1 will be the best option for now. Anybody have experience with these? I know they're the "entry level" sockets from Shunyata, but at $100/ea, they fit the budget better than the other upgrades available. Any feedback is appreciated - thanks!

I have been using the SR-71 outlets on 3 dedicated 20 amp lines for years now, and am very happy with them.

**Puma Cat** · August 7, 2020, 01:52 PM

Originally Posted by Don C

Hi gang, semi-new guy here. (I joined some years ago, but haven't posted much.)

Poignant thread...

I recently ran a direct line from the panel to my listening room - Southwire 12/3 MC cable and used the better Leviton "industrial heavy duty" 20A outlets - nice, firm grip with a positive "click-in-place" feel when inserting plugs. A very big improvement for my system power - noise floor is significantly lowered and there's a superb enhancement in low-level system resolution. My ears are happy!

I'm considering next the inevitable outlet upgrade, and budget suggests the Sunyata SR-Z1 will be the best option for now. Anybody have experience with these? I know they're the "entry level" sockets from Shunyata, but at $100/ea, they fit the budget better than the other upgrades available. Any feedback is appreciated - thanks!

Don

I've been using mine for about 9-10 years now. Unreserved recommendation. Made an notable and audible improvement; your best bet in this price range. Just as importantly, they are also durable with respect to use. Give 'em about 2 days to burn in.

At some point when the budget allows, I'll upgrade to the new CopperCONN outlet.

**Puma Cat** · August 7, 2020, 01:52 PM

Duplicate post; that web site bug is still with us...

**Don C** · August 7, 2020, 03:17 PM

I appreciate the responses, gents, particularly the long-term use testimonials. These will definitely be on the radar when the motivation strikes.

**GSOphile** · August 7, 2020, 04:03 PM

Originally Posted by Audiophilehi

So I have it narrowed it down to the 20A Audioquest NRG Edison and the Shunyata CopperConn outlets. I’ll start with 3 for my 2 Channel system. One for each amp and one to plug in my Denali 6000s V2. The rest of the outlets will be Hubbell’s.

Has anyone compared the Edison and the CopperConn?

I got the NRG Edison and have been happy with it (reasonably priced, high quality, grips like a vise). Installed on a 20 amp dedicated circuit. Did not do a home comparison. I went this way in part to complement my choice of an AudioQuest Niagara 5000 conditioner and Hurricane PCs.

**Hounddog** · August 7, 2020, 09:30 PM

I compared the Edison and the PSAudio’s in the same room, same circuits, same system, and there was no comparison - the PSAudio’s are for sale. Different price points, but no sonic comparison.

Sent from my iPad using Tapatalk Pro

**Bones13** · August 7, 2020, 10:23 PM

I put "hospital grade" 20 amp outlets on the separate circuit for my amps. Bronze (or brass most likely), for sure, the hospital grade makes sure of good connections.

**vert** · November 26, 2021, 04:50 AM

Originally Posted by Rnrmf

Duplexes I didn't like:
4) Audience Hidden Treasure - rhodium plated, made by Cardas (if you like fast and dynamic, I've never heard anything like this duplex; it wowed me but I couldn't get past the midrange which I found too lean
5) Furutech GTX-D (R) - like the Audience, rhodium plated and I had the same perception of sound.
.

I agree the Hidden Treasure is thin in the midrange.

My favorite outlet is the Oyaide R0.

Switching to that from the Audience immediately yielded more bloom and tonal richness.

**Jim Smith** · November 26, 2021, 09:15 AM

Haven't tried many. When I have done so, the Copper Conn were best.

Still using them.

**Stehno** · January 30, 2022, 12:59 AM

Last September I read in a post where somebody bought some kinda voltage meter and just started measuring everything he could get his hands on. Somewhere along his journey he mentioned his findings from measuring a Furutech outlet. Well, I've been using Furutech outlets for about 14 years now. I've had a few other audio-grade outlets prior to the Furutech's but I liked the Furutechs best.

Anyway, upon reading this guy's findings I did a little homework. In the end I purchased 4 fully-cryo'ed Hubbell outlets from Jena Labs. Installed them and after a few days of burn-in, the upgrade was surprisingly quite large. Not surprisingly. Shockingly. And this is no slight against Furutech as they were better than those I've had before that including Oyaide and a few others. Anyway, I actually expected to hear very little or no improvement but what I got was rather significant. Almost like the system had previously been playing on 105v but now it's exactly 120v.

I'm kinda' closed-mined when it comes to enthusiasts buying measuring tools and their findings. But when I read his findings on the outlet in question, something perked up in me to at least do a little investigation. Well, at least I'm trying to be more open-minded.

**mep** · January 30, 2022, 10:24 AM

Originally Posted by Stehno

Last September I read in a post where somebody bought some kinda voltage meter and just started measuring everything he could get his hands on. Somewhere along his journey he mentioned his findings from measuring a Furutech outlet. Well, I've been using Furutech outlets for about 14 years now. I've had a few other audio-grade outlets prior to the Furutech's but I liked the Furutechs best.

Anyway, upon reading this guy's findings I did a little homework. In the end I purchased 4 fully-cryo'ed Hubbell outlets from Jena Labs. Installed them and after a few days of burn-in, the upgrade was surprisingly quite large. Not surprisingly. Shockingly. And this is no slight against Furutech as they were better than those I've had before that including Oyaide and a few others. Anyway, I actually expected to hear very little or no improvement but what I got was rather significant. Almost like the system had previously been playing on 105v but now it's exactly 120v.

I'm kinda' closed-mined when it comes to enthusiasts buying measuring tools and their findings. But when I read his findings on the outlet in question, something perked up in me to at least do a little investigation. Well, at least I'm trying to be more open-minded.

How does that sync up with your signature line?

""The more I dabble with extreme forms of electrical mgmt and extreme forms of vibration mgmt, the more I’m convinced it’s all just variations of managing mechanical energy. Or was it all just variations of managing electrical energy? No, it’s all just variations of managing mechanical energy. No, wait. It's all just variations of managing electrical energy" -me"

You can't be a dabbler if you have a closed mind.

**Stehno** · January 30, 2022, 01:29 PM

Originally Posted by mep

How does that sync up with your signature line?

""The more I dabble with extreme forms of electrical mgmt and extreme forms of vibration mgmt, the more I’m convinced it’s all just variations of managing mechanical energy. Or was it all just variations of managing electrical energy? No, it’s all just variations of managing mechanical energy. No, wait. It's all just variations of managing electrical energy" -me"

You can't be a dabbler if you have a closed mind.

It falls wholly in line with my signature, near as I can tell. For all I know, maybe 5 years ago such a change would have been minimal if anything.

I actually consider myself fairly open-minded. Just closed-minded about certain sources of info. Like when people run around measuring everything because they have a new toy. I don't trust that many even know what or how to measure, much less sufficiently interpret what they've measured.

**Spock** · January 30, 2022, 08:06 PM

Originally Posted by Stehno

But when I read his findings on the outlet in question, something perked up in me to at least do a little investigation.

Anyway, upon reading this guy's findings I did a little homework. In the end I purchased 4 fully-cryo'ed Hubbell outlets from Jena Labs. Installed them and after a few days of burn-in, the upgrade was surprisingly quite large. Not surprisingly. Shockingly.

I also care more about different experiences and different conclusions that leave to not aligned opinions.
When someone says something that looks just right, I think to myself: there must be a reason that makes this person do such assertive and categorical statement. I'll go looking for the reason and most of times i found were the opinion was born.

About the topic: why the "duplex" receptacles? One thing I've noticed is that the outlets should be farther apart. So, for me, a duplex outlet doesn't make sense. But that's what you find most. Singles are much harder to find.

**Troquio** · February 17, 2023, 10:09 AM

All of them are 220v 230v?

Best regards

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