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7Hz x Crinacle Zero:2 IEM Review

Rate this IEM:

  • 1. Poor (headless panther)

    Votes: 7 1.7%
  • 2. Not terrible (postman panther)

    Votes: 12 2.8%
  • 3. Fine (happy panther)

    Votes: 52 12.3%
  • 4. Great (golfing panther)

    Votes: 351 83.2%

  • Total voters
    422
I don't know if this is useful as it's 3 years old, but ...

From reddit: Apple usb-c (dongle) isn't that great on Android
The dongle is able to put out 1Vrms, but on Android it is limited to ~0.5Vrms or so because it defaults to a lower hardware volume and Android cannot control hardware volume without an app with its own USB driver such as UAPP.
It goes into more detail and I don't know if this is true or out of date, but thought it may be of relevance.

C.
 
Any cheap Harman-focused IEMs that fit small ear canals? In my research I come back around to things that aren't Harman focused - Sennheiser...Truthears seem to be out of the picture for me

(I searched a few relevant threads with 'canal')

I had same issues with Truthear Zero IEMs, I cannot use them because the angle and size of the nozzle. They are not for my ears and are very uncomfortable. The Truthear Hexa is much more comfortable for me, same as the the Salnotes Zeros. They are very comfortable and the eartips are of thin material, which is good for small ear canals. I have good seal with them and they are comfortable. Give them a try and if you don't like them, donate them to are friend.

Soundwise I still prefer an over-ear headphone. A Hifiman Sundara or a Sennheiser HD560/HD600 runs circles around all IEMs I have used so far.
 
I don't know if this is useful as it's 3 years old, but ...

From reddit: Apple usb-c (dongle) isn't that great on Android

It goes into more detail and I don't know if this is true or out of date, but thought it may be of relevance.

C.
Yes, it's true.
With UAPP you have all the power. If you use TIDAL, QOBOZ, or local files apps without UAPP, the volume will be anemic...
 
I can't agree with some users that this IEM sounds like a bad response.

1.png


No matter how good the headphones or IEMs are, HRTF work requires correction at the headphone/IEM stage. (That means resonance of the ear.)

2.png


And with ZERO:2, you'll find very little of this resonance, which creates a filter response that's almost like a speaker.

Which means that it's different for each person's ear, but at least it's the closest to HRTF of all the headphones I've ever used, which means less calibration is allowed, and it's a high match rate
Of course, proximity to the HRTF curve does not mean that it makes a speaker-like sound. IEM/headphones have limitations that come from the way they listen. To solve this problem, if you add a virtual crosstalk (nierfield/parfield) response and delay to the 4 channels with True Stereo, you will get a very good response.

And be careful about choosing your ear tips.
The basic 7Hz ear tip isn't bad, but I felt 100-200hz band bloated when using basic tips.. Look for something that works for you, even if it's not necessarily from the same company.
That's all about the low-pitched quality.
 
I guess I'm a wired IEM fan now too, didn't have much experience there before. Spot on sound for my taste. Just plug and play with the standard tips and the around the ear cable is much more comfortable than I thought.

Upgraded my old Sabaj DA2 to Fiio KA5 which resulted in not requiring autoeq tuning anymore. Sabaj sounded just muffled without the 6kHz boost. Must be my imagination. ;)
 
I can't agree with some users that this IEM sounds like a bad response.

View attachment 340906

No matter how good the headphones or IEMs are, HRTF work requires correction at the headphone/IEM stage. (That means resonance of the ear.)

View attachment 340907
Hi, I'm interested in your measurements, are these made with your own in-ear mics?
And with ZERO:2, you'll find very little of this resonance, which creates a filter response that's almost like a speaker.
Is this not usually independent of the IEM though? It's not a resonance of the IEM itself, it's the ear canal. It's created by the creation of a resonant tube closed at both ends (ear canal with ear drum and IEM either end). Etymotics are the only exception as they are inserted so deeply the resonance appears much higher up in the frequency range than with other earphones.

Which means that it's different for each person's ear, but at least it's the closest to HRTF of all the headphones I've ever used, which means less calibration is allowed, and it's a high match rate
Of course, proximity to the HRTF curve does not mean that it makes a speaker-like sound. IEM/headphones have limitations that come from the way they listen. To solve this problem, if you add a virtual crosstalk (nierfield/parfield) response and delay to the 4 channels with True Stereo, you will get a very good response.
Following on from my previous question, doesn't the variability mean it can't be "closer to HRTF" in any general sense?
And be careful about choosing your ear tips.
The basic 7Hz ear tip isn't bad, but I felt 100-200hz band bloated when using basic tips.. Look for something that works for you, even if it's not necessarily from the same company.
That's all about the low-pitched quality.
 
Ordered for $27.33 out the door from Amazon 12/21, received 1/6. The OEM ear tips didn't get me a good seal, so I switched to SpinFit CP145. They have a bit wider aperture, and I found I needed to EQ up the bass on my Qudelix 5K about +4 dB (PEAK, 15 Hz, Q = .2), in addition to the prescribed 200 Hz adjustment.
The ergonomics work for me; the stock ear hooks are positioned well, and the shell does not contact my ear.
Compared to my current portable daily driver AirPods Pro 2, this combo appears to resolve better across the board. Commodity-priced IEMs have come a long way in the last 3 years.
 
Hi, I'm interested in your measurements, are these made with your own in-ear mics?
Yes and No. Combining in-ear micro-measured responses with 7hz ZERO:2 measured with GRAS, I compensated with an additional EQ while listening to the rest with my ears. Because I know how to make the reference sound that I made/


Is this not usually independent of the IEM though? It's not a resonance of the IEM itself, it's the ear canal. It's created by the creation of a resonant tube closed at both ends (ear canal with ear drum and IEM either end). Etymotics are the only exception as they are inserted so deeply the resonance appears much higher up in the frequency range than with other earphones.
I think you misunderstood my content. (Or maybe I wrote it wrong using a translator.)
That response is not an independent response of the IEM alone.
A "filter" response to copy the sound in my ears listening to the speaker. That response itself is a filter.
What I was saying is that the response of that filter usually has a little bit of a boost in the resonant part. It should. And the less that EQ goes in, the more I'm judging it as a good IEM or good headphones.

I've also tried inserting it deep into the er2xr of Etimotic. It wasn't bad, but the performance of the Atimotic itself wasn't that good. (All IEMs and headphones have almost the same tone balance, so you can make an objective comparison.)

Following on from my previous question, doesn't the variability mean it can't be "closer to HRTF" in any general sense?
also this. Yes and No.
The HRTF curve is not one curve that fits an individual.
It's just a form in which we accept sound in certain conditions, in certain situations.
For example, the response is different from when the sound comes in front of a 30-degree angle at a distance of 1 meter, when the sound comes in 10cm above a 50-degree angle, and when the sound comes in behind a 110-degree angle. It has to be different. That's how we perceive it.
So what I was saying is that it might be closer to the "normal" and "average" HRTF curve, but even if it matches the HRTF curve as I wrote down, the limitations of the way IEM and headphones are heard (we only hear one sound each with one ear) make it impossible for us to hear that response intact.

Imagine, for example. Some people wear IEMs and say that the high notes sound too painful. That's possible. There's also a problem with wearing them.

But on the other hand, you rarely experience that in speakers. Why is that?
The level of IEM has already risen tremendously. I think it's not a matter of the performance of the device itself, but a matter of the way you listen.
Applying the four-channel true stereo method, which listens to sound almost simultaneously with both ears, to IEM also eliminates the details of the sound that hurt our ears and allows for a comfortable appreciation.
So I recorded my own heavenly sound using HRTF, made it and listened to it, but even if I didn't use it, I got a hypothetical Crosstalk response car based on HRTF and applied it with delay (approximately 0.25ms), and I experienced that the distracting sound of any earphone or any headphone immediately disappears. I think it's obvious, because that's how I listen.
 
Hey, I'm a having a problem with this IEM, they were really good when they arrived but then I put my VE Abigail (CX31993) on maximum hardware volume on 32 bit and after that they seem to sound a bit distorted. Did I damage the drivers or it's just placebo?
 
Yes, this one in particular is phone magnifying hard to see.
Thinking about putting a red dot on the right one to make it easier
I've got no chance reading tiny writing so I pick mine up with the cable coming out forwards. Then the side the nozzle is on tells me which way to go.
 
Yes, this one in particular is phone magnifying hard to see.
Thinking about putting a red dot on the right one to make it easier
Excellent idea!
 
Might be a funny question but, can the driver handle 125dB? That is, doesn't get deformed after playing 125dB for a few minutes.
 
Have you noticed that a lot of the IEMs from China don't mark left and right very well?
Im less bothered about marking the earpiece on this style of earphone given it can only go correctly on one side. But not marking the l/r cable is a hanging offence. Can't remember how well the stock cable on these is marked though
 
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