Skeptic or just plain hard headed


So I purchased a pair of Morrow Audio phono cables. These are the PH3 with the Eichmann connectors. Wanted to start there to see if MA cables will be a viable option for my system.I think my story is not so unique to others who have purchased MA cables. So no need to go into the hu hum of burn-in in regards to MA cables, and how things sound bad at first, then gets better,  then excellent...yada yada yada. I know the story about this product.  I simply am one who is not a believer in electronics break in periods, or battery packs on cables, etc... Regardless of what side of the fence you are on in regards to that Im NOT trying to start that debate again please.. Anyway. After reading several reviews of the MA cables and understanding that most agreed that the cables needed a substantial burn-in time, and that the cables would not sound its best until this happens I decided to give them a try. Thinking ok lets get a jump on the burn-in period (if the concept is true). I paid for the 2 day burn-in service from MA. What I didn't expect is that when I got the cable it would sound as bad as it did in comparison to my existing name brand cable (not getting into that either, not relevant). I thought well the cable might not quite be up to snuff with all this talk about burn-in (if its true) but not that much of a difference.  I mean as soon as I dropped the needle on the record I immediately heard a profound difference in sound stage and clarity degridation. Needless to say this cable was destined to be returned to MA for a full refund and my thinking was "they are crazy if I am going to trade my cable for this cable" So I decided to give MA a call to setup the return. Talked with Mike Morrow (very nice guy by the way) and we had our differences in what I should expect out of his product. Now my Mother always told me that I have a hard head.. I heard that growing up all my life, and when you couple that with skepticism it makes a pretty, well lets just say not a very fun person to have a debate with lol. However Mike insisted that if I return the cable that I would be missing out on the fruit they would bare after 400 hours of break in. 400 hours??? really!. Oh at that point I was really ready to return them. I told all my friends "Mike must be nuts" (no offense Mike) no way am I going to wait a year to hear what this cable is capable of, AND I do not have any way to expedite the process...at least I thought I didn't until I found an old sound bar I don't use anymore with analog inputs. Ok I know you pro MA and  pro cable burn-in folks are chomping at the bit. Im almost done. Take your hands off the keyboard for just a few more lines. 

So here is the deal to be fair I am going to be open minded about this because Mike really made me feel like I would be missing out if I return the cable without a proper burn-in (great salesman), and since he had such conviction I now think I have to test this thing out right??. Now I know that there are testimonials out there about how the MA cable improved over 100s of hours in their system, and that they are now "blown away". However can you really hear a profound difference in a cable you play in your system over 170 hours or so?  I would think a gradual difference would be harder to detect. I mean my system seems to sound better to me everyday without making any changes. Is it because of  continued cable and electronics burn in?? maybe. Or maybe its just my brain becoming more intimate with the sound of my system. Well this test I'm doing should reveal a night and day difference from what the system sounds like today with the cable pre burn-in if there is any merit to the notion. In regards to does it sound better than my existing cable that is yet to be determined. I think my goal now is to prove or dis-prove if cable burn-in is a real thing. This whole idea has evolved from if it's an improvement or not over what I use today. We can discuss that later.

I now have the cable connected between a cd player , and a sound bar with a CD playing on repeat. The disc of choice for this burn-in is rather dynamic so it should be a good test. At the end of 16 days (384 hours) I will move the cables to my reference system and do about another 20 hours of additional burn-in to compensate for moving the cable. This will put a total of 452 hours of burn-in on the PH3. When I put this cable back in my system I sure hope it sings because this is a lot to go through to add a cable to your system. Mike if you are right I will eat crow and will preach from the highest mountain top that you are right, and that cable burn-in is REAL.  For me anyway the myth will be considered busted or reinforce my belief that cable burn-in is a bunch of BS. 

For those who will argue the point of cable burn-in I fully understand the concept, and I don't plan to get sucked down that rat hole and I won't argue that....yet because at the end of this test I may be in your camp and I don't want to have a steady diet of crow so for now I will remain neutral on the subject until the test is complete.  However I will be totally transparent and honest about the results. So not trying to make anyone angry as I know beliefs about audio are sensitive subjects, and rightfully so this hobby is expensive and I like you have a substancial investment in this. Just trying to get to the truth. I also understand that cable burn-in may actually happen when you consider it from a scientific perspective, but the real question is can you actually hear the difference.  

I will report back to this thread in 17 days from today (need at least one day to evaluate) with the results. 

happy listening!!

-Keith
barnettk

@ieales

"If cable cooking manifests itself by changing the cable and all cables sound different in different system, what is it about cooking that is always positive? If there are changes, then in some systems the changes must be negative."

That is an excellent point and I totally agree. Which brings us back full circle and I don't think we will ever totally agree on this topic for that very reason. The only way we all would agree on something like this is if we all had the same exact electronics in the same exact listening environment.  I feel that there are way to many variables to say what works for me works for anyone else, but there could be common traits.  However its still fun to experiment.

After last night I am now more interested than ever to see if I can find any other measurable things that I can detect from burning in this cable. Today I am going to take measurements of noise to see if that changes between 200 hours and 400 hours. Should be a simple thing to measure. Not sure how I can measure dynamic range. I considered measuring through put..that should be simple enough. I have spl measurements of when playing the music to compare to after the 400 hours. Is there anyone else that has good ideas around other things I can actually measure with test equipment?
Yeah, the changes can be negative, for a while.  Cables can be overcooked (left on the cooker too long) and sound bad.  I've done it.  You can easily tell by listening, but all you need to do is wait it out.  Doesn't take more than a day..  Long term, I've never had a negative result.


This is one of those sticky subjects where it’s not really that there is no AGREEMENT about cable burn in but really more of a whack a mole game type of subject where you have those WITH experience with cable burn in and those who do not, but who engage in the time honored game of Whack a Mole. And there are also those who might be curious.

The subject of burn in not new and this is not the first rodeo for the more advanced audiophiles on this thread. Not to diminish measurements, which can certainly have their place. Good luck with that. In any case, it’s hard to generalize test results of just about any audio related thing. It’s a tough nut to swallow.
I wrote PS Audio to find out exactly what they do to each piece of equipment before shipping to the new owners. I have had other manufacturers do the same thing. When I buy cables from the manufacturer, they ask me if I want them burned in which I normally do. Here is how PS Audio replied to my question on wether they burn in or test their equipment before shipping:

Thanks for reaching out with a great question.

Most of them only receive a “torture test” so to speak.

There isn’t really any way to “torture test” a DAC, so we test all of the inputs and outputs for about 15 minutes, and then send it on its way.

The amps get tested a little harder, and drive a dummy load for a few hours.

The powerplants get tested the hardest as they will sometimes have a heavy load put on them for around 48 hours.

All of this testing isn’t really enough to qualify as good burn in though.