The discovery thread!
Oct 25, 2018 at 11:43 PM Post #38,656 of 101,013
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Oct 26, 2018 at 12:15 AM Post #38,657 of 101,013
Here is a quick rundown of manufacturer burn in r&d process. This can take years to finish, and explains why after burn in the sound almost always gets better.

https://www.edn.com/design/test-and...eening-improves-electronic-design-reliability

https://www.edn.com/design/integrated-circuit-design/4435976/Burn-in-101

Quote amanand88keys
  1. Any manufacturer worth their salt will test a prototype intensively before applying changes or putting it on the market. You don't just design a product and then go "sounds alright, let's sell it!". That simply never happens, unless you don't care about consistency, long-term reliability and your reputation. First you put the design through a (large) number of tests, which may later on also include extensive listening sessions for fine-tuning, and building several prototypes of the same generation to give them to individual testers that will use their own systems and report back with their findings. This is all very time consuming, which partially explains why you sometimes hear about new products that are in the making several years (!) before they hit the market. For the manufacturer it is therefore possible to gather actual, reliable knowledge about an eventual burn-in effect.
  2. Edit:::: Burn in is not an unforeseen prey to the gods and hope it works effect. It is a planned, foreseeable and designed for normal process and is to be expected with all mechanical and electrical equipment.

I'd recommend that you move this kind of discussion to the sound science part of this forum. The reason for this? It's a highly debatable subject with very little facts and objective proof (pretty much like religion) and these kind of discussion tend to get threads off topic (like you're doing here imo) and many times closed.


In my experience there's about as many believers as there's none believers and the chance to convince either that they're wrong is microscopic, it pretty much always turns into a never ending loop that's quite tiresome to read.....
 
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Oct 26, 2018 at 12:24 AM Post #38,658 of 101,013
Decided to remove my post. :)
 
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Oct 26, 2018 at 12:33 AM Post #38,659 of 101,013
People believe what they want to believe about burn in. For me at least I basically burn in everything I get. Some has an effect some don't.

If the ritual of burning in an earphone gives you 1% satisfaction that there has been a 1% change in sound then it is worth it. If burn in doesn't do a darn thing than hey maybe you got a fully burned in earphone from the factory.

Either way. It is not such a big deal. However to keep the thread in peace. Lets refrain from the burn in talk. Thanks.
 
Oct 26, 2018 at 12:42 AM Post #38,660 of 101,013
I realize I am at fault here too since I always talk about burn in. So I will try n be good about that kinda stuff.

Anyways onward and upward. We have 11/11 and black Friday to look forward too in the US at least. Big overblown sales days. I for one will be scouring the Alibaba for them deals. Will most certainly post about them here and the new cable thread.

I can just see the high end cable buys rolling their eyes about now. Lolz!!
 
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Oct 26, 2018 at 12:45 AM Post #38,661 of 101,013
Just looked, and saw that the Penon website has more than two dozen earphones in the $150 - $200 range. It doesn't look like they sell the LZ A4 any longer - so I'm wondering which of the models that they do have, comes closest to the sound of the A4 (Grey or Black Nozzle, Red Back)?

I'll also take recommendations for earphones that are available from other shops - like NiceHCK, AK Audio, and ToneKing.
 
Oct 26, 2018 at 12:48 AM Post #38,663 of 101,013
I just posted my experiences with the DM6 and it turned into a poo slinging fest.
Will refrain from making any more references to it, as it clearly is a very touchy subject.
My beliefs don't require other people to believe in what I believe in. Much love :)
 
Oct 26, 2018 at 1:02 AM Post #38,664 of 101,013
for those of you who already have the DMG, what tips are you using??
I have read a bunch of comments that the included tips are not that good.
My DMG is coming from Massdrop next week.

I use my own custom hybrid tips -- similar to Symbio W.
 
Oct 26, 2018 at 3:04 AM Post #38,665 of 101,013
Some discoveries for me:

Rose Mini6 (improved version):
#1 Plugging in and out with the MMCX works now fine for me. No BA's dies! Improvement - check!
#2a Nozzle with additional metal tube - no idea, why they made this. My former tips don't fit anymore. It is now an in between diameter size. The tube from my left unit detached with the first trial putting a tip on it. Only glued. Improvement - no!
#2b Nozzle now without a mounted filter at the top end but open and inserted with a very flimsy loose type of meshwork. Likely only to prevent to get something in the IEM rather than a tuning filter - Improvement - no! Because, I do not get the sound quality I remember with the first version and that is really a pity. Don't get me wrong. It is not a bad listening at all but I don't get the WOW factor with the Mini6 anymore.

...But it is all relative (by such a big margin sometimes)…

...because I did a short comparison session with my 4 recent favorites, Rose Mini6, Mini4, MT100 (Planar), Audbos P4 - starting at 7 p.m..
All of the mentioned sounded different in its balanced characteristics but all like angels to my ears with all a good amount of bass and all notes so unbelievable smooth. A pure joy.
I stopped listening and watched TV for two hours, than I started the second session of the day at 10 p.m. by using the same equipment.
And this is the next discovery...all sounded like almost completely different as compared to the earlier session of the same day. No forward bass anymore, not a smooth like angels heaven sound from all of than (but of course still good - very good).
This was quite a frightening finding to me. That you can hear such big differences with one earphone but at different times. I already recognized this effect earlier but not by this value.

Conclusion for me: Hardware (setting) remained very very likely :darthsmile: the same but the main factor of the difference was just me and my physiology and/or brain (mood, mind, memorization) or whatever...
 
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Oct 26, 2018 at 3:14 AM Post #38,666 of 101,013
So I have been tip rolling a bit more on the DMG tonight and it seems to me standard wider bored tips don't mesh well with the DMG. For my ears at least I have settled on the Sony MH1C tips.. From these earphones. Sony MH1c

Headfi vets know this earphone. I still own my pair. A discovery from years past. It is the tips of these that I only wish I could just buy somewhere but these are very rare to find. The only way to get these tips is if you can buy one of these earphones. In any case. What makes the tips from these earphones stand out is that they are not your garden variety Sony Hybrids. These sit longer on the nozzle than the Sony hybrids and this makes a world of difference. The material or silicone they use on these are rubbery and seal better in the ear than anything else I own.

My other go to earphone tips are the Spiral Dots, UE, and Symbio tips. You can buy these tips easily enough but not so much the MH1C tips. That is until now.

I posted about these a while ago but I thought I would post this here again. These are the Spinfit CP145

61%2BD1PaSTBL._SL1500_.jpg


So what separates these tips from your included tips. These sit longer on the nozzle. In fact I don't think I own a tip that actually sits longer on the nozzle. These come extremely close to the MH1c tips. Next time you guys are looking for a great tip to use on your phones especially the DMGs. Try these tips. Worth your $12 on Amazon to try a set. Good proper tips do make a difference. By the way make sure you try this particular CP145s. You can try the other model spin fits but.. These, these are special. The results of these tips. Deeper, cleaner better precision from Treble to bass. Again this is just my opinion but wider bored tips seems to exaggerate the treble bloating out the bass thinning the mids. Not real focused. Of course your results may vary since we all have different shaped ears. Again this is only on the DMGs.


I’ve been using these tips too. They create a great seal. EDIT the Spinfits.
 
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Oct 26, 2018 at 9:45 AM Post #38,667 of 101,013
All this talk about burn in, i TRIED to do burn in yesterday but i failed just like i always failed. Will try to do today but i keep listening to the iem's.

The tips that i am using with p4. Small, shaped like a U instead of an traditional
( ), in my imagination the it working like an CIEM. I tried double flange with a super open hole(don't know the name) that seemed find but less comfortable. This one has a smaller hole but it's not small to the point of giving a bump in the bass.

15405614072686966603945286864425.jpg 15405615051176553254420220913980.jpg
 
Oct 26, 2018 at 10:46 AM Post #38,669 of 101,013
I am off to northern California working, and my DM6 is hooked up to my desktop playing pink noise. When I get home, itll be close to a 150 hours, and I'll be able to make critical listening impressions.
Cannot wait :)
 

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