Furutech GTX NCF receptical break in, how long


Bought NCF with 6 day burn from seller. I have it burning in last 5 days on 2 cheap power bars with old desk top towers, fans, TiVo box, home theater amps. My amp and Preamp, phono stage and CD player are all tube so I don't use them. Ran system on outlet tonight and no bass, bright, sounds bad. First day with outlet it sounded very nice. Any owners of rhodium outlets can tell me what I'm in for time wise, or what to expect sound wise in next couple weeks, thanks
paulcreed

Reminds me of an old joke...new car buyer asks how long will her car take to break in?...dealer says...by the time the engine blows--she’s well broken in!

 

@ryder   Incremental improvement, only...since my previous post.

Certainly no 'jumps' in performance.

May I ask if you have experienced further changes to the sound after 400 hours or so?

Approximately 340 hours of additional active play time since my post on 9/30. Therefore, just under 500 hours as of today. Total draw time is approaching 800 hours.

+1 regarding: "this GTX-D NCF outlet is the best I’ve experienced"

My previous experience with the same NCF outlet was very different (read...not as impressed). However, that was the receptacle only implemented in a power supply. 

I currently have two of the bundled outlet sets. I will be adding two more bundle sets.
I have not experienced the variance others have reported.

I have been playing music through the system for 14 to 16 hours a day followed by a 10 to 8 hour break, though there is some draw through the outlets during the down time.

My system is highly transparent (read: resolving... mentioning this to address a point from earlier in the thread regarding low-resolving systems).

The outlets have about 220 total hours on them (as of now). Assuming 60% playtime, accounts for 132 of the total hours (an approximate figure).

May I ask if you have experienced further changes to the sound after 400 hours or so? 220 hours is quite far off the 300 hour mark where I perceived a sudden significant jump in performance with the outlet.

As echoed by others, this GTX-D NCF outlet is the best I’ve experienced in my system. I do not have the privilege of trying other premium outlets but this one combined with good power cords truly transformed my system.
Sharing my experience with a recent install of a pair of Furutech GTX-D NCF(R) Duplexes; GTX Wall Frames; and 106-D NCF Outlet Covers.

Having read this thread as well as others regarding break-in for the NCF(R) duplexes, I was expecting a long and wild ride.

This has not been the case. After about 2.5 hours sound quality settled and has incrementally improved since, with the exception of some weirdness with vocals on day 1 and day 2.

I have not experienced the variance others have reported.

I have been playing music through the system for 14 to 16 hours a day followed by a 10 to 8 hour break, though there is some draw through the outlets during the down time.

My system is highly transparent (read: resolving... mentioning this to address a point from earlier in the thread regarding low-resolving systems).

The outlets have about 220 total hours on them (as of now). Assuming 60% playtime, accounts for 132 of the total hours (an approximate figure).

The outlets were in their original packaging. In other words, no prior burn-in.
The outlet is done settling in and took 600-700 hrs to do so! The result is well worth the wait and is flat out what could be considered  essential as it's the best outlet money can buy and does indeed represent the current SOTA. Hard pressed to give it a sound character as it just gets out of the way of the source , It's not fatiguing in anyway, its never dull or overly warm  one would think when judging it's plating (Rhodium) that it will have this sound or that sound and you would be wrong. I could really go on and on about this outlet but for the first time giving thoughts on an addition I'm at a loss for words! In short if you want to upgrade your outlet, skip the rest save your money if need be and get the Furutech GTX-D NCF ! 
Indeed it's revealing of the source . one main trait this outlet has that I like is it's relentless dynamic burst that can be startling at times but still. Retains musical flow, bit of an enigma at times. I still need another 300+ hrs  I'm at about 500hrs and changes are still occurring . I have a fully burned in AQ Edison outlet which is by no means a slouch by any means and will compare the two as they're in the same duplex.

One thing to be aware of is the Furutech products increase _transparency_, not euphonics. What this means is that, often times, I have used a test song or album that progressively sounded worse as the cables broke in. The dynamic range became smaller and flatter, etc. 

Once I began branching out to other albums in my collection, I was blown away at the reverse happening. 

The cables/metals are going to reveal sound - albums with low LU (loudness units) will properly appear flatter and more "in your face", and albums with high ones (like classical) will grow in dimension. 

Bad cables/metals will often "add" dynamics and weird things that aren't in the music but mask good stuff there is. That's why I totally abandoned WBT. :)
Come sunday i will have 388 hrs on the    Furutech GTX NCF outlet, I took a good listen last night for changes (  I've used the same two disc for the last 4 months to evaluate my various upgrades for the end of 2020) and in contrast to out the box and mid way through, the highs are opening up nicely and shimmer has arrived in delicate bells that were missing up till now. The taunt bass heard out the box is extended and show casing layers, midrage has a beautiful timber with realism . depth and demision in the sound stage is also more broad without losing dead center imaging. Pretty impressive!
All Furutech products are basically the same burn in story because its their Alpha OCC materials, the exception being their teflon DSS cable which is a whopping 500-700hrs or their 55N PC which is like 800 hrs. (My DSS literally sounded worse at 300hrs than $5 Audioquest cables I plugged in and compared)

NCF material requires no burn-in, it is a passive effect from crystals embedded in the plastic housing. You can buy booster braces and instantly get an effect when you put them around cables, like if you have a gold outlet.

I’ve been burning in Furu gear for about a year, story is always the same - decent but bloomy out of the box. Then a dive until 100-150hrs. Then an irritating sharpness till around 200-250 and you start to cry thinking you bought the wrong thing. Then it smooths out and we open up to spaciousness around low 300s. Then you think you are done, and sweetness comes in the very end around 350-400+.

I also noticed the differences between R and G become small when you are in the thousands of hours compared to how things start out. They are there, but not nearly as extreme as the start if you compare apples to apples connectors. which I have. I stopped judging anything I hear from Furutech until 300hrs. Amazing how many reviewers (even 6moons) take their products out of a box and immediately make comments. Its also amazing Furutech isn’t mitigating this information, but they are a weird company run by an eccentric trust funder. A totally legit and awesome company, but weird. 
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I'm in for the long haul as I've been burning in gear for the last three months and this is the icing on the cake!
Don't be surprised if the Furutech GTX NCF outlet alters good to bad and takes hundreds of hours to break-in and sound good 100% of the time as has been stated earlier.
Just over a 120hrs on the GTX ncf and last night sounded good with bass extension returning, the two nights before had me worried. I do use a 1hr break with no signal as two allow a relax period then back at it. I'm burning in Morrow Audio MA 5 xlr's  as well which arrived two days prior and last night indicates when all said and done this will be great.
Burn in has begun with the Furutech GTX ncf and of course I liked what I heard out the box but not going to fall for that old trick! Good thing I have cables and my Jc5 still needing to finish burning in so here we go all  been running 24/7, I'll post back in a few weeks with an update.
Right, I can’t believe I’m updating this thread. A little update. Just today I’m hearing a change with the system. The bass is hitting lower and sounds fuller with better definition and detail. More defined. Midrange and treble also sound fuller and fleshed out. The highs sound silkier and more illuminating. I can’t believe this. I thought I’m not getting anymore changes with the system but it looks like the Furutech NCF receptacle really needs time to break-in.

I’ve made some calculations and so far I think I have about 300 hours on the outlet. If this thing will only give its 100% after reaching 500 hours as claimed by few here, I can’t imagine how my system would sound like then. At the rate I’m going I think I need 2 more months to get to the 500 hour mark.
Right. I'm not sure if some of you guys are exaggerating on the numbers. Currently I'm between 100 and 150 hours. I would say the sound quality is great after the 100 hours mark is passed. No more fluctuations.
It sounds terrible between 20 to 50 hours. I hope it will sound better approaching 100 hours.
I currently have about 20 hours on the GTX-D NCF. It's true that it sounds great during first few hours. It's sounding not very good at the moment with a flat sound and rolled off treble. I can't wait to get this thing past the 500 hours mark. Still a long way to go 😭
Interesting thread! Thanks for posting your updates in the process.
I have a Furetech GTX-D-rhodium sitting in my drawer. It was in my wall for a while; Very similar experience. I just figured not a good fit, bad synergy, etc, so I swapped back to my glorified Hubbell /PS Audio and the immediate issues went away.
Maybe I should rig up a test fixture for the GTX and install it in about three months.

I have noticed system variability though, and chalk it up to grid; I’m an EE but my forte is PCB design for complex embedded systems; I recall the power factor topic in a power systems class. Someone please refresh me: does power factor at the load vary with changes on the line due to OTHER loads present on the line ( that can come and go analogous to wi-Fi devices coming on/off network) or is it totally dependent only on the loads complex relationship ( reactive behavior) with the immediate incoming power?
When my system goes through a period of “bass light” and lacking in its normal “punch” it feels like the amp is simply starved for current. This happens on the order of a few weeks give or take. I’ve noticed this phenomenon in every system I’ve ever put together in every location ( different houses); one time it was so bad ( at that time I had an Audio Research 100.2 amp) I thought the amp was seriously on the way out... but came back the next day and the music was back again. Bass authority, dynamic drive, and loss of presence, are the triad of characteristics that usually suffer most during these phases of audio life;
This leads me to believe that power factor fluctuations from other loads impinge onto the power amp and wreak havoc when non-ideal. The amplifier’s power supply component impedance has not changed( or does it vary???), nothing else moved, etc...
I have what appears to be, based on reviews and theory, an incoming power conditioner; a P.I. Audio Group UberBUSS; This device has power factor network...looking forward to hearing this in the system.
Cool thread!
leolucchesi
A system can indeed sound better at night than during the day or better one day compared to another day quite significantly.This has to do with the power itself in your region and how people are using it at the listening moment. The more power is used by the population, the less you have for your hifi, that's really a fact.
It may be a fact in third-world or developing countries, but certainly not in any industrialized nation, unless there is something badly wrong with your local utility. There is plenty of power to supply everyone. Quantity isn't the problem.
Hey guys, just wanted to react to things that were said earlier.
A system can indeed sound better at night than during the day or better one day compared to another day quite significantly. 
This has to do with the power itself in your region and how people are using it at the listening moment. The more power is used by the population, the less you have for your hifi, that's really a fact.
Don't take my word, even in the 60's and 70's some recording engineers would prefer to record and mix-down at some moments during the week/day because they definitely heard a difference in the performance of all the analog gear involved.
So basically you take a winter Saturday evening with a football match on TV and also the Foo Fighters playing in a stadium in the next city, well be ready to hear a slight change in your Hifi system. Now you take a (I don't know I'm making it up) let's say a calm Tuesday in July at 22h, It should sound better because the power available to you is just better.
You will hear this effect especially with a high-quality and transparent system. I heard it here. Actually the most obvious is when my neighbours do washing machines, I slightly hear the noise itself cause its vibrating but I swear I'm missing punch and authority in the sound when they use it/them.
Schizophrenic is the only way I can describe the NCF. There is no immediate gratification with this purchase. It's really a long bad ride but once it's over it was well worth the aggravation. I almost pulled it out of the wall and stuck it in a drawer so I could listen to music again. David is right if I had to do it again I would put it on the fridge/deep freezer and forget about it for a while.  I do think if it gets hit with quick draw of high current on and off it helps but 24/7 is a must. If you make it through the break in of NCF any other component breakin will be a breeze. I had to give it 7 to 8 weeks before it was okay to listen to music and improvement begins after that. The part that got me was the first few hours it sounded fantastic came back later and sounded like trash. I just moved recently and set my system up and it sounded okay, thought maybe everything just needed to settle in but then I remembered I forgot to install NCF. Stuck it in the wall and everything was right. I realized the NCF really does make a large improvement in my system. I also own the furutech gold and there is no comparison. Hang in there it gets better I promise.

serbinfan:
You are experiencing a problem with making three changes to your system at the same time. I would suggest removing the Furutech NCF from your audio circuit and putting in another circuit. At this location plug something into it that uses electricity nearly 24/7. That product needs 3 months to diminish the Rhodium harshness sound. Then put it back in your audio circuit. A week latter make a final decision.

You may like the gold outlet - NCF gold plug combination as much or better.
David Pritchard

Hallo, Paulcreed, I must admit I have opened an account on Audiogon only to thank you for your posts about breaking in Furutech NCF. It is because I am experiencing much the same thing and I found so much comfort in your posts. I appreciate the experience you shared like hardly anything ever.. But my journey is not over. In fact, I’m becoming a little impatient… and paranoid ;) My system consists of a high-resolution tube amp based on KT88 power tubes (with nice Mullard NOS tubes in the preamp section), Metronome CD8 S player and Franco Serblin’s Accordo speakers (my listening room is 22 sqm and the Accordo can really give me the required slam in terms of bass, I appreciate the speakers also for the exceptional soundstage they can create even in a regular living room). Before installing Furutech’s rhodium NCF receptible, I had used Furutech’s top performance gold receptible, but just barely long enough to break it in. For the most part of the breakin period, the gold sounded closed in, not open, not resolute enough. Eventually, the sound opened up, being detailed but smooth. 

However, acting on my audiophilia nervosa, I replaced the gold receptible with Furutech’s NCF rhodium outlet. At the same time, I installed a Furutech FI-50M NCF  plug on the power cable for the power strip (both the power cable and the power strip are Polish made, but from a recognised manufacturer). And, at the same time, I added a Furutech NCF booster to hold my new precious FI-50 firmly in the wall outlet. You might think, a hell of an upgrade! When I first played a CD (a Kari Bremnes I like to use for testing), I wasn’t sure if I was going to love my new sound, but what I heard was promising: so much more clarity, resolution! But I missed some musicality, but I thought, wait, people say things will improve.. It’s just that things got worse… Two weeks after the change, with moderate listening of 2-3 hours a day, the sound is actually worse than it has ever been, even before the installation of the new NCF outlet, FI-50 NCF plug and the NCF Booster… There’s a lot of resolution, but the sound is harsh, totally unlistenable!!! And I’m thinking to myself: what?? I’ve spent so much on the upgrade, and I’m to suffer THIS? But then I found your posts.. So I’m waiting… I’m afraid I’m actually your stalker ;) I have read carefully every sentence you wrote, and I do hope the sound of my system will improve eventually… J

It's just that I have begun to doubt. Is it possible the sound can improve so much? Because what I want to hear, after about 200h of breakin, is soooo far not only from my expectations but even from before the costly Furutech upgrades.. L I’m not talking subtleties here, oh no..

Anyways, thank you for sharing your experience, I found it so helpful!

And do you have any new thoughts on the subject? Are you now totally happy, in terms of Furutech, at least? ;)

Peter


Like evolution being a fact, some equipment,cables, fuses, etc need time to break in. Based on 15 years of listening, Its obvious to my ear that this is true. And, are you sitting down, my stereo sounds better after the circuitry has warmed up for a 1/2 hour or so. And still more madness. Ready for this one, get the padded room available, it sounds better later at night then the rest of the day.
To all you snake oilers, there's is more in heaven and earth than is dreampt of in your philosophy. Electro-magnetism, she is a strange and wonderful mistress
Most people don't listen to music actively. a quote I remember from an old Stereophile mag, "Most people like the idea of music."
Have others experienced this: in the general admission seating at outdoor concerts, most people are talking throughout the show so that there's a constant buzz in the air? When did this begin to happen and why?
Sorry for misunderstanding, that many feedbacks and all positive you definitely deserve a pat on the back! 

paulcreed
Geoff you brag about selling so much gear are you never happy with your system.

I wasn’t really bragging, I was responding to a pseudo skeptic who was being fresh. I am actually rather humble about it, it’s the first time I ever mentioned it in all these years. Am I ever happy with my system? Do you mean happy like a contented cow happy? 🐄 Happy like a clown happy? 🤡

Geoff, I mean no disrespect, but paint peeling off walls, Geritol, I don't get it. A lot of words but not much content. Maybe I missed something, if so sorry. I'm a 55 year old drummer and guitar player since age of 12. I own Gretch round badge, stop sign badge, Ludwig classic, Fibes Austin Jasper shells,DW, zildjian A's, K's and over 20 snare drums. Martin D28, Hummingbird, Strat ,les Paul, SG, Telecaster and spend time in studios. All these instruments have there own sound. In my system I can hear the brand of instrument that was chosen for the recording if I am familiar with it. Most of the time breaking in this outlet I can't tell the difference between an A or K cymbal. I'm at 4 weeks running through a Running Springs Audio Dmitri with a RSA HZ power cord from wall to RSA. Maybe when breaking in power related products the type of power conditioner used is a big factor why mileage varies.My system has been the same for years. I Just listen to music not the system. Geoff you brag about selling so much gear are you never happy with your system.

jitter, I had a feeling you’d like that. Call it ESP. It’s not all fun and games, though. It’s lonely at the top. 😬
On behalf of myself, and probably an exceedingly high percentage of both the Agon vocal and silent majority, I would like to mention that the most amazing thing I have read in all my 15 to 20 years on Audiogon, is that you have close to 4,000 positives.  You don't have to confess, but if you do you will feel a lot better, your conscience cleansed.  Come on tell us, you found a way to hack the feedback system? 
prof
geoffkait “Ah, the curious, probing mind of the audio skeptic. Why do receptacles need burn in? Why do cables need burn in? Why do fuses need burn in? Why do capacitors need burn in? Why does contact enhancer need burn in? Why, why, why?! Sweet mystery of life. Why do the stars go on shining? Why do the birds go on singing?”

Yes, what a terribly strange thing to wonder why and ask for explanations and evidence, instead of just taking things on faith and singing hallelujah with the choir.

>>>>What’s strange is the incessant longwinded barrage of self satisfied pseudo skepticism and anti tweak rhetoric spewed out. What makes it even creepier, if possible, is your confession that tweaks don’t really do anything in your system.

How’s your cult going geoff? Are your members numbering above "1" yet? ;-)

>>>In case you weren’t paying attention, Professor, I am one of the biggest sellers and have the most positive feedback, on the way to 4,000, thank you very much, extant on Audiogon. Your wit not withstanding. Well half of one, anyway. I’ll have to start calling you The Absent Minded Professor.
jetter
"I can’t imagine audiophiles sitting around for days or even weeks on end checking the sound out and watching the paint on the walls peel."

You are incorrect, once more, they are not watching the paint on the walls peel.

>>>>>Or perhaps, like yourself, they’re sniffing the paint fumes. Who knows for sure?
amg56
If you listened to your HiFi "break in" over a period of weeks and you listened to it daily, which most of you profess to do, the change in sound daily would be so small you wouldn’t notice. By that stage the system componentry will have begun to degrade so it all amounts to BS anyway.

>>>I simply spray Geritol on all the componentry from time to time. I find that keeps them young and feeling fresh.

If you listened to your HiFi "break in" over a period of weeks and you listened to it daily, which most of you profess to do, the change in sound daily would be so small you wouldn't notice. By that stage the system componentry will have begun to degrade so it all amounts to BS anyway.

"I can’t imagine audiophiles sitting around for days or even weeks on end checking the sound out and watching the paint on the walls peel."

You are incorrect, once more, they are not watching the paint on the walls peel. 
Ah, the curious, probing mind of the audio skeptic. Why do receptacles need burn in? Why do cables need burn in? Why do fuses need burn in? Why do capacitors need burn in? Why does contact enhancer need burn in? Why, why, why?! Sweet mystery of life. Why do the stars go on shining? Why do the birds go on singing?


Yes, what a terribly strange thing to wonder why and ask for explanations and evidence, instead of just taking things on faith and singing hallelujah with the choir.

How’s your cult going geoff? Are your members numbering above "1" yet? ;-)
Assuming for the sake of argument there is such a thing as break-in for wall receptacles, capacitors, fuses and such audiophile niceties how on Earth can someone, especially the sort of obsessive compulsive perfectionist that would indulge in these sorts of things possibly be able to keep track of his sound from day to day, day to night, week to week, in good weather and bad, even if he made no changes to his system, added no new tweaks, etc., which would be very difficult to swallow given their obsessiveness. Somehow I can’t imagine audiophiles sitting around for days or even weeks on end checking the sound out and watching the paint on the walls peel. There’s not enough time! There’s work to be done. Hel-loo! If you aren’t bothered sitting around doing nothing for days or weeks at a time you don’t understand the problem. Do I believe it when someone says it takes 8 weeks for a thing to break in or even 200 hours through experience? Well, probably not.
In some cases, length of burn-in time = our ears/brain need longer than usual to get used to the new sound.  Nothing more.
Ah, the curious, probing mind of the audio skeptic. Why do receptacles need burn in? Why do cables need burn in? Why do fuses need burn in? Why do capacitors need burn in? Why does contact enhancer need burn in? Why, why, why?! Sweet mystery of life. Why do the stars go on shining? Why do the birds go on singing? 🤡
What do you think is actually happening during this "burn in" process that would explain the purported sound changes?

Outside audiophile lore, I've never heard any electrician or electrical engineer (who isn't selling high end audio products) say any receptacles need "burn in" for any reason.

So I'm wondering what the actual technical reason would be for this "burn in" phenomenon and why it would alter sound.

(In my own experience, I've never heard a difference whether I've changed the outlets where my equipment was plugged in, including moving to a new dedicated outlet, or whether it's plugged in to my Furman power conditioner/bar). 


Paul, I have experienced that harsh broken glass sound as well at times where I thought it was burned in.  It is also like some evenings it sounds okay but the next day it will be really bad and un-listenable.
Will do audiolab, had some time to kill on road this morning and called furutech dealer I bought from. He said at least 6 week burnin and it is normal for it to swing like this even with 450 to 500 hours. Loss of bass etched highs. Last night the highs were almost the worst I've heard during this process, like broken glass. He also mentioned these outlets are very system dependent on how they react. He builds his statement power conditioners with these NCF's outlets so he has to have some experience and feed back from customers. Will try 12 and 12, what a crazy hobby!
@ paulcreed, Been awhile, need to mention that you need to run system 12 hrs and then turn off at night, do process all over again each day, this needs to be done after 450 hrs, be patient my friend, I would like for you to keep me informed here with progress, remember, the extended high’s come in at 700 hrs like a brick up side the head, believe me, you will know when the treble detail kicks in.
All was well Sunday, Monday. Last night bass was thin highs unlistenable. Didn't spend much time listening just enough to see what's going on last few nights My system is slight on warm side of neutral. I have not stopped burn in. I'm not sure what's going on but I'm to the point of boxing everything and dropping it off at Goodwill. I'm wondering if a furutech gold added to the mix may help in the long run.

 As it turns out from experience,  the break- in is for each plug in on every duplex,  sorry paulcreed,  I should have told you this.