Breaking in gear. Does one really notice/remember a change?
- Thread starter bryans
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The only items I feel really need time to break in (other than valves) are cartridges and speakers. I recall buying a Koetsu years ago and was particularly disappointed when listening to it initially, so much so I took it out again. After spending a good few years in its box I decided to re-install it and this time persevere. I can’t say now how long it took, but it did at some point come on song, a glorious stage and vocals to die for. Remains the best (most satisfying) cartridge I have ever owned (and the only one I have ever removed after initial installation).
I haven’t heard much change with any of the cables I have bought.
As for electronics, not really sure. I think it’s important to differentiate between break in and warm up. I seem to hear changes with all amplifiers (solid state and valve) every time I listen to them. For me, these changes are part of the warm up process and not really break in – I think I would find it impossible to recall how it sounded the very first time out of the box in comparison.
I haven’t heard much change with any of the cables I have bought.
As for electronics, not really sure. I think it’s important to differentiate between break in and warm up. I seem to hear changes with all amplifiers (solid state and valve) every time I listen to them. For me, these changes are part of the warm up process and not really break in – I think I would find it impossible to recall how it sounded the very first time out of the box in comparison.
I'm a believer in things needing to break in/settle/warm up, etc. I've just wondered does one really remember what their setup sounded like at say 100, 200, 300, 400 hours of the breakin process. For me I really don't remember, but I like to tell myself my current setup sounds better after the breakin process. 
So what would be your recommendation for others? You leave everything on? Do you switch it off for vacation? Do you maybe know how long something can be switched off before reverting to the state from before breaking in?
How dare you come on here and make common sense !!
You're last sentence speaks volumes for I always laugh when some fool feels the need to tweak the tonality of the system with cables rather than proper room/speaker interaction/set up.
Can you explain why you expect tube amplifiers to behave differently from solid state electronics considering break-in?
If you have a reference piece, understanding break in is easier. I have a Dartzeel amp. I insert a new amp and note how they differ. I let the new amp play a couple hundred hours, then take the new amp out and put the Dartzeel back in and listen a while. Get my head back. Then put the new amp.back in and note how it differes to the Dartzeel. If my notes have changed, then maybe there was a shift in the new piece over time. It the notes are the same, maybe nothing much changed.
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I had a demo model Exposure amplifier for 2 months while waiting for a new amplifier being produced in the factory, exactly the same model. When I got the new amplifier I was baffled by the difference in sound, and how much better the older amplifier that had thousands of hours on it sounded. Does this convince someone who is sceptical of break in? No. Do I care? No.
Couldn't agree more! There is so much subjectivity in this great hobby, yes certain aspects can be measured, but ultimately it comes down to everyones ears, equipment and their own listening environment - there are no two people with exactly the same
Except for tubed gear, the rest of my system stays on 24x7.
It’s pretty major.
When I got the APEX upgrade to my dCS Rossini, when plugged in for the first time the sound was rather bright and thin. Harsh and lacking in bass, sounding like neither the non-APEX I had been living with or the demo APEX at my dealer.
I knew it would take time to break in so I left it on being fed by a digital signal from my DISH satellite receiver.
Over the course of the next few days the warmth gradually returned, I would say it took about 50 hours to start coming back noticeably on the low end though the harshness in the highs mellowed more quickly.
By the end of the week, about 100 hours in, the bass was back, the treble wonderful and pleasant and the improvements in soundstage and focus huge.
I would also say it continued to improve slightly over the next 100 hours or so.
A lot depends upon the component; my amplifiers only took about 50 hours to really begin to sing, but my preamp probably took about a full week before it began to sound like the broken-in demo model I had auditioned in my system.
Speakers often take longer and seem to break in in a similar way - harsh and lacking in bass when new, but about after about a month of playing them 24x7 I played a track I did when they were new and was floored by bass they certainly didn’t make when new. I actually thought “where did that come from?”
I know that the light characteristics of projector lamps change significantly when they're new. That's why you shouldn't calibrate a projector until its lamp has about 100 hours of use. While a power / output tube in an amp is a different animal, they're similar in that they're both "hot filament in a vacuum tube" devices. I don't know if amplifier output tubes with their high heat change their characteristics somewhat during a break-in period, but I wouldn't be skeptical of measurement data or tube amp ABX testing that showed that.
There is nothing in common in the more relevant physics of lamp projectors and tube filaments - lamp projectors are built to emit photons, whose energy peak depends on lamp temperature and tube cathodes emit electrons, that are accelerated towards the anode with an energy depending on tube voltages. The relevant physics are the Stefan–Boltzmann law and the thermionic effect, respectively.
It the break-in effect was mostly due to the tubes we could expect that just putting in place well burned-in tubes would carry the break-in . I can assure you that it is not true - tubes are usually completely burned-in in around 100 hours, equipment needs typically 300-600 hours. As I am not a patient audiophile I usually break-in electronics in continuous mode using cheap , even noisy or old old tubes with some life left before putting prime tubes in service.
Tube burn-in can be due mostly to a cathode surface polishing/cleaning effect - when electrons are emitted they carry some atoms of the cathode, eliminating whiskers and impurities that generate noise from its surface.
Measured electron emission does not change during the burn-in phase, something that excludes filament temperature as being its cause.
Semiconductor burn-in is much more complex and hard to discuss - for example semiconductors have defects and they can migrate under electric fields. As usual in these speculative subjects , IMO and YMMV.
Many manufacturers, we included, burn in their tubes before testing and installing them in the devices. This way, we are sure that the tube holds proper parameters and won't randomly die in the few days after the product is unpacked.
Ignore break in and warm up if you please. If you play music eventually you will reap the benefits anyway. perhaps you can pursue a cure for your linear distortions during this period. Break in and warm up are passive events.
Enjoy the music.
Another comment I couldn't agree more with
Do we sometimes get side-tracked and / or miss the real point of what we are aiming for, or should be doing, I wonder?All I want to do is sit down in front of my system and lose myself in the experience. True, there is a period (initially) when I can't do that, but I know this, accept it, and wait for the system to come to life..... and it does.
It's no so much as to recall how it sounded first, there are certain things that chance during break in. Mostly regarding lack of bass, holography, harsh treble, unbalanced presentation. When things stabilize I do not notice further changes and then it's done. Regarding cables, the most pronounced changes (and stubborn to break in) I have experienced is with cryogenically treated cables from Argento, Furutech and Lessloss. I mean between 500-1000 hours. Most equipment sounds good after 200 hours. It's a controversial topic, and for myself I usually shy away from these discussion, because I have been ridiculed by such statement before, but whatsbestforum has been positive in this regard.
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