Power Receptacles - Review and Comparison


Once I started comparing power cords on the various equipment in my system, it was undeniable that the power receptacle has a tremendous influence on the resulting sound from each power cord. Switching between the Porterhouse Audio Power Port, Oyaide SWO-XXX, Oyaide R1 with the GPC-Z cover, and Synergistic Research Teslaplex consistently produced significantly different results with each power cord I auditioned. I am amazed at how much each receptacle influences the performance of a given cord and, more importantly, the sound of my system as a whole.

Over a period of months, I compared each of these receptacles, using several different power cords on each of my components, beginning with my Ayre CX-7e CDP and K-1xe preamp. I eventually concluded that I preferred the Synergistic Research Tesla T2 power cords with the Teslaplex receptacle on my front end equipment.

So now for the amp. First, I compared the Oyaide SWO-XXX to the Porterhouse Audio Power Port on my Krell FPB-600c with the SR Tesla T3 UHC power cord. The SWO-XXX provided a little more apparent detail, but I found the Power Port to be much more musical and it provided what I feel to be more realistic soundstage ambience and more natural upper-frequency purity.

Next up was the Oyaide R1. While I can see why so many folks are impressed with the R1, it seems to impart the same sonic signature on every piece I try it with. It has a very refined sound, with impressive detail, good tonal balance, and lovely harmonic bloom; but, in my system, it has much less air than the Teslaplex or the Porter Port and the soundstage is not as expansive. Instruments seem to move forward in the soundstage and vocals have a much more ‘hi-fi’ quality about them. I never get the ‘live sound’ magic from the R1 like I do with the Teslaplex or the Porter Port.

Many audiophiles keep a special component, interconnect, or power cord over the years whose sound they know to be truthful and use it to evaluate new equipment in their systems. The Porter Port is such a product. It is my opinion that it is the most neutral of this entire group and should be the standard by which to baseline power cords and receptacles. This is indeed impressive considering the $36 selling price of the Porterhouse Audio Porter Port.

The Synergistic Research Teslaplex receptacle is somewhat of a paradox to me. When comparing its appearance to the Oyaides, it seems very unlikely that this hot-rodded Leviton will be able to make a mark against those exotically-plated Japanese beauties. Looks are deceiving! This receptacle is revelatory in its ability to generate a seemingly unbounded soundscape that is so transparent it actually seems to breathe. Anyone who has tried the SR Tesla power cords knows what I mean by this. The ‘thereness’ of vocals and percussion is just uncanny. I suspect much of this is a result of Ted Denney’s Quantum Tunneling treatment. If you are unfamiliar with this process, visit the Synergistic Research website for a recorded demonstration. One thing I know for sure is that it enhances his products in a most remarkable way.

The Teslaplex may not be everyone’s cup of tea. Its sound is so transparent and delivers such spectacular clarity that I suspect that many audiophiles will find it to be overwhelmingly different from what they have become accustomed to. Perhaps it is, but if the reproduction of air and limitless soundstaging are your audio drug of choice and your system is up to it, I think you will find this receptacle to be quite amazing. Highly recommended!
128x128dlcockrum
thanks Tbg.
Too bad Ted isn't offering his own thoughts and/or experience on this matter. Guess nothing beats trying things out first-hand.
I currently have several Teslaplexes to play with. Will be comparing to a bunch of others, some cryo'ed, some not.

Dlcockrum, you mentioned settling on the Porter outlet for the amp. I'm curious what the verdict was when your amp (as well as your source+pre) all ran with the Teslaplex?
Balancing act came into play? ...too much of one thing and not enough of another?
Reading all the above. It goes back to a matter of taste and chosen colorations that you enjoy. Like cables it is all a crap shoot.

There is no doubt that outlet can change the presentations, you could blind fold me and switch between a porter port and the Oyaide R-1 and it take seconds to till the difference.

Myself I wound up with a combo of the R-1 on my amp and the porter port on the front end gear with the Oyaide GX Gold on my video gear.

The GX and the Porter Port was close, the Porter adding a much need weight and foundation to the presentation. The GX being lighter sounding and more laid back.

So for my tastes and ear it’s a R-1 with a Porter Port. Now about that new PS Audio outlet…smile!!
Phillyb,
No doubt about the choice of colorations. One other notable difference I've found between the Oyaide GX, R1 and Porter Ports is soundstaging. The Oyaides are more forward in their presentation, the Porter Ports emerge much further behind the speakers. I use the R1's and Porter Ports in combination, perfect soundstaging in my system.

I'll have to check out the Synergistic Teslaplex, having found Synergistic cables satisfying in previous setups, I suspect these could work in my system.
Hello,

I have installed the Teslaplex to replace Oyaide SWO-XXX feeding my balance power conditioner which supplies power to the rest of the gears.

After about 10 day, I have encountered pros and cons. The good: better dynamics, extension and soundstage depth. The bad: harsh, lack cohesiveness and confused imaging.

I wonder if the drawbacks above are due to issue of burn-in which admittedly probably requires more time.

Those in the know, please advise and thanks.

Kenobi
Kenk, I have only used the SR Teslaplex with the PowerCell, but I get none of the harshness or confused imaging you mention. I know it is not a matter of breakin so I suspect your balanced power conditioner and the Teslaplex just don't like each other. I personally cannot stand balanced power conditioners, so I would strongly suggest removing it and plugging your components into a simple power strip. Synergistic has one called the QLS-6 which is tunneled. I know it is better than the IsoClean nice copper power strip that I also own.
Dlcockrum,
I’m sorry I missed reading your review when it originally was written.
Excellent job!
Thank you…
I just received my teslaplex. I'm going to install it in the office first and let the two computer systems break it in for a bit.
The Teslaplex only took a day to burn in for me, but the effects were almost immediate... 3 days it was all settled. No need to waste time and install it on the computer... Lets us know what your think. Thanks!
Oh really?

hmmmm.... Well I'm leaving tomorrow morning to go visit family for the weekend so everything will be unplugged until I get back so I'll install it when I get home!

That helps.... the outlet for the office is behind a very large corner desk system lol.
Thanks for the review.
I purchased an R1 receptacle recently, and, having recently purchased a used Convergent preamp which has some serious issues, I had to put it aside and use an Arcam FMJ22 integrated.
My experience mirror yours somewhat with the Oyaide: the stage moving forward (causing larger images), and it being refined. A caveat: ALL the images are larger, not simply the ones in the center of the stage.Images at the sides are equally larger.

Not having tried the Tesla receptacles, I can't comment on them. I DID find the R1s to have considerable low level detail with a fuller harmonic completeness. For example, in the JVC XRCD release of Scheherazade, the musicians' moving in their seats was not a stilted, disembodied sort of sound, but the way sound moves through space, with air being displaced when their chairs moved.

More than that, I found the dynamic inflections considerably better than with the FIM 880 outlets, which seemed to have been the reason the system sounded "softer" and with less transient snap. Musically, it was highly emotionally communicative as well, which is my top priority. Swells in the music were more obvious.

I had auditioned the Tesla interconnects (Precision Reference and, eventually, Apex) and the $2400 power cord last year, and found the Apex to be clearly elevated in its bass-lower midrange response. I had started out wtih the Precision Reference, but Tesla, upon finding that this was the loaner model I had obtained from the Cable Company strongly suggested I needed to use the Apex on the front end. I dutifully got the Apex, but immediately realized it imparted a "rich" sonic signature to music, which to me is a definite coloration. The Precision was less "obvious" in its effects. Oh, the amp was the ASL Hurricanes and the speakers the Usher 718s (which in themselvees may have a rise in the upper bass, so perhaps THAT'S what I heard. I did use other speakers, though, and the effect was still there. And the Arcam integrated is clearly a bit lacking in midbass-lower midrange response, so it wasn't that. The CD player, mainly, was the Cambridge 840C, again, not a player with a rise in those areas).
It's not unusual for manufacturers to build complementary colorations into their products. The early WATTS, for example were tested using the Rowland Coherence 1 (VERY powerful from low bass to lower midrange, exactly where the WATTS were deficient (this was the Series 1 WATTS, circa 1985, long before Dave had the Puppy, which he let me hear in mid 1988 before they were released) and a Spectral DMA 50, which had a rising high end, which compensated for the WATTS' LACK of high end. Given that nothing's perfect, even seemingly "neutral" components such as the Nordosts (which ARE lean, despite protestations to the contrary,which is precisely why Nordost came out with the Odin line. Others may disagree, but HP finally 'fessed up that he wouldn't have thought the Valhallas threadbare 'til he heard the Odins), can cause the system to demonstrate in a complementary way to the preceding components.

Having said that, until I put the R1 in, I hadn't realized the FIMs were doing what they were doing. I certainly didn't feel that way when using the PS Audio receptacles: I didn't hear much difference, but at that time there were some family tragedies, and I wasn't myself. I doubt I could have noticed if I'd locked myself in the room and listened to music for a week straight. It was only this week I noticed it.

Yes, the R1 does bring the presentation closer, but it also layers the 'stage quite well, eliminates a haze at the back of the stage, allowing wall boundaries to be heard, and, overall, allowing a sense of continuousness to ensue. Continuousness isn't something most people listen to in audio components, but just being in a room, if there are sounds going on, you don't hear them in discrete layers: they all ebb and flow continuously with no "vacuum effect" between sounds. The Jadis Defy 7 was the best example of this, as are Avalon speakers. Antique Sound Lab's products are also noticeably continuous, although not to the degree that the Jadis had it. My observation is that the R1s allow - not create -- sound to propogate in the same way as it does in real life.

This is just by way of a different observation. I'm quite sure the Teslas may simply have "more" of this, as this seems to be their forte. I can honestly say I didn't find the power cord to outclass significantly Shunyatas' new CX Viper cords and certainly not the Pythons, all of which I bought last year. I'd say they were very similar, although I hear the "dimensionality" the Teslas provide, which may be a function of a very well-developed midbass, which provides, unquestionably, the "dimensionality" in an audio product that most of us seek. In that case, most products with a bump in the midbass or just simply a near-perfect midbass will have a much greater degree of dimensionality than a product with a weaker midbass.