IEM discussion thread (Part 2)

Tip, if you have a dap (or something with a screen) and you want to buy a screen protector for it but there is no specific protector made for it. You can look for generic ones on Aliexpress/Amazon or buy another model if you know it fits the screen size and aspect ratio.

If you are unsure about the aspect ratio but you have the screen size and resolution, you can use this site.

And use the custom option to then enter the resolution (width and height) then the screen size. Then you get the aspect ratio (and ppi).

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I use the CAD renderings which are in a product manual. The Surfans F20 manual had renderings which were not very good, but the Agptek manual had much higher resolution renderings. After some work in Paint Shop Pro, I ended up with the PDF which you can download from this dropbox link:

You can practice cutting the paper up to the edges of the solid grey areas, especially for the curves on the top edge for the rear glass protector. After you have some good grey cutouts from the paper, you simply use double stick tape to stick the grey cutouts to the screen protector material so that the grey cutouts stay in place while you are cutting the screen protector material. Once the screen protectors have been cut, remove the double stick tape and paper. Now you can install your custom screen protectors.

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https://www.vxreddit.com/r/iems/comments/1w65kwp/trn_mt5_quick_review_i_felt_emtpty_on_this_one/

Just wanted to share this and this was sent to me by TRN. And boy, this has got to be one of the most confusing sets that I have ever tried, tested and review. It lacks cohesion, the bass, mids and treble are all over the place scattering around and for a budget set IEMs, this one requires a lot of power or volume for this one to sound decent, for they just sound dull when I usually use the volume that I am already comfortable with.

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It appears that the MT5 has a bit of boost at around 6 kHz rather than a dip in this range. It looks like there also is a fairly strong 12 kHz peak. This is what I am seeing in the squig graphs. What is in the nozzles? Do you see paper filters or mesh filters?

Maybe I’ll do that. Maybe I will try to mod that IEM to make some changes to the sound, for that one is just a mess overall for me.

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Ok, so I have decided to mod the MT5. Turns out the filters are just the metal mesh filters on the nozzle, not a single paper filters inside the nozzles. The mod that I did is basically placing an another filter which are the black ones I forgot the name of it, then place the stock filters back as well. What do you know? The sounds on the mid highs and highs are less harsher now, and they sound a bit natural now for it was really artificial sounding and all over the place. Still not a technical piece but it sounds at least decent now.

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Nice. You could try adding another filter and see how that sounds. It doesn’t matter if you place it on top or behind the stock filters since you are simply testing for now.

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Also I just disovered this, turns out the IEM which is the MT5 is not even metal. It’s similar to the IEM that Zeos reviewed and it’s more of a plasic shell with a metal finish or something. Should not be surprising since it’s cheap but yeah this one might have been the one affecting the tuning.

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Metallic paint is a thing and imo is damn nice as you get the lightweightness and non-cracking plastic but with the looks of metal.

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A quick update on the MT5, I think I fucked up and made it sound even worse. I poke the vent with a needle and punctured a hole on it, and yeah the overall body of the sound of the IEM is just gone, I must have punctured the driver. And no, not even the tape trick made it sound good again. It’s a lost cause lol.

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Do you have a picture?

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Aful?

Sound like an upgrade to the magic one

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6mm micro dynamic driver IEM from Aful, the Aful Miracle One.

The Aful Miracle One utilize a 6mm ultra-wideband DD unit combine with Aful proprietary SEM ( Scientific, Electricity and Math ) acoustic structure of resonant pipe, acoustic pipe and staircase pattern sound path to translate a basic DD iem into a complex audio system.

Aful Miracle One, coming soon

The pictures are in case someone knows Chinese. :wink:

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I don’t but Google does:

For the small text:
Advantages: Superior sound quality, balanced and comprehensive sound.
Disadvantages: Unsmooth sound transitions, abnormal fluctuations in the acoustic curve.
Advantages: High consistency in phase and timbre, unique “relaxed atmosphere” for comfortable listening.
Disadvantages: Insufficient high-frequency resolution, insufficient sound density, and unbalanced frequency response.

Pink text is supposedly “resonant voice”

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It is interesting regardless,

Sony messed up with 5mm dd, if this iem wasn’t finalized, a 10mm or at least an 8mm DD would’ve been my preference. Obviously this 6mm dd meets some of their requirements ig.

btw

Moving Coil/Circle = Dynamic Driver
Moving Iron = Balanced Armature

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I don’t know, call me biased, but I don’t think I am gonna take a chance on a 6mm DD. I don’t care what gimmickry they throw at it. It will be interesting to see what the reviewers think of it.

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It is Resonant acoustic capacitance

Here are some clearer translated images for you all.

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