NF AUDIO NE4 Evolution - Replaceable Tuning Faceplate IEMs
Jul 7, 2021 at 1:40 AM Thread Starter Post #1 of 10

Penon

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NF Audio NE4 Evolution

4BA Replaceable Frequency Dividing Faceplate 2Pin 0.78mm HiFi Audiophile In-Ear Monitor

ISNEST50.jpg


NE4 Evolution, with the exquisite engineering design, the frequency divider is external, and only by simply replacing the frequency dividing faceplate, it can provide unlimited upgrade space for the earphones, without repeated consumption, one = innumerable.

The frequency divider is the core tuning component of the multi-driver earphones. Different circuit architectures and parameters enable different drivers to work at different frequencies with different powers. The same driver, coupled with different circuit architectures, parameters, and frequency dividers of resistance-capacitance components, can obtain a completely different sense of hearing, which is also the top priority of multi-driver earphone tuning.

Link:
https://penonaudio.com/nf-audio-ne4.html
 
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Jul 7, 2021 at 1:52 AM Post #2 of 10

Penon

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EST50 3COLORS.jpg

ISN Audio EST50

Flagship 2 EST + 2 BA+ 1 Dynamic Driver Hybrid 2Pin 0.78mm HiFi Audiophile IEMS

ISN-EST50 IEM.jpg

Specification

Brand:ISN Audio

Model: EST50

2 Sonion Electrostatic driver for ultra-high frequency

1BA Knowles for high frequency

1BA Sonion for middle frequency

10mm dynamic for bass

Rated input power: 2mW

Max input power: 3mW

Impedance: 18ohm±10%(@1kHz)

Sensitivity: 100±3dB(@1kHz)

Frequency response: 15Hz-70kHz

Connector: 2Pin 0.78mm

Plug: 3.5mm audio , 2.5mm balanced , 4.4mm balanced

Cable length: 1.2M

ISN EST50-IEM.jpg

Purchase link :​

https://penonaudio.com/isn-audio-est50.html
 
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PENON Stay updated on PENON at their sponsor profile on Head-Fi.
 
https://www.facebook.com/groups/1221974387914138/ https://twitter.com/PenonAudio?s=09 https://www.instagram.com/penonaudio/ https://penonaudio.com/ penonaudio@hotmail.com
Jul 7, 2021 at 11:59 AM Post #3 of 10

CT007

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What does it sound like? Similar to H40? Orb? Oracle? Fan?

No frequency graph..?
 
Jul 7, 2021 at 5:57 PM Post #4 of 10

tomaster

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They look very nice but when I see vent it always worry me about isolation, reviews rarely have much to say about that. From what I heard they are like H40 but better sound wise.
 
Jul 7, 2021 at 6:31 PM Post #5 of 10

KutuzovGambit

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They look very nice but when I see vent it always worry me about isolation, reviews rarely have much to say about that. From what I heard they are like H40 but better sound wise.
Penon IEMs have pretty good isolation in my experience. I think the EST50 is supposed to be closer to the Penon Globe in signature than the H40, but with the H40’s greater bass emphasis. I would really like to try these at some point.
 
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Jul 7, 2021 at 8:19 PM Post #6 of 10

Dsnuts

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What does it sound like? Similar to H40? Orb? Oracle? Fan?

No frequency graph..?

1623513966556.png

They look very nice but when I see vent it always worry me about isolation, reviews rarely have much to say about that. From what I heard they are like H40 but better sound wise.
These are an upgrade to the Globes and the Globes are an upgrade to the H40s.
I did a full review with comparisons for both the Globe and the H40 toward the bottom. Overall they sound somewhere between the tone of the Globes and the technicalities of the Volts but leaning more toward the tuning of the volts with more bass.
https://www.head-fi.org/showcase/isn-est50.25254/
 
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Jul 7, 2021 at 11:39 PM Post #7 of 10

rattlingblanketwoman

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They sound like they're fantastically priced, but that still puts them beyond my reach. Then again things I've been able to pick up to try from the second hand market right now that are only a year and a bit old have already dropped within reach. Maybe I'll be able to see what these sound like in a year or two!

I'll look forward to hearing/reading all about them in the meantime. The sort of pleasurable time-wasting that makes up the non-listening part of the hobby!
 
Aug 19, 2021 at 4:19 AM Post #8 of 10

Penon

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NF AUDIO NE4

NF Audio NE4 iems.jpg




The changes beyond your expectations, the possibilities of countless voices


The frequency divider is the core tuning component of the multi-driver earphones. Different circuit architectures and parameters enable different drivers to work at different frequencies with different powers. The same driver, coupled with different circuit architectures, parameters, and frequency dividers of resistance-capacitance components, can obtain a completely different sense of hearing, which is also the top priority of multi-driver earphone tuning.

NE4 Evolution, with the exquisite engineering design, the frequency divider is external, and only by simply replacing the frequency dividing faceplate, it can provide unlimited upgrade space for the earphones, without repeated consumption, one = innumerable.

NE4 EVOLUTION
The circuit structure, electrical parameters, and types of resistance-capacitance components can be changed, and the range of sound changes is huge. At the same time, under different circuit architectures, NE4 Evolution can be not only 4 drivers, but also 3 drivers, 2 drivers or even single driver. It only needs to replace the faceplate to get a completely different sound

Classic and conflicting timbre standard is at your fingertips

Sound is the art of balance. Generally, it is impossible to achieve popular, balanced, positive, and transparent and beautiful in the same earphone.Switch

tuning,based on a specific circuit, some parameters are adjusted, and the range of change is limited.However, the NE4 Evolution can obtain the above

three sound at the same time by replacing the three standard frequency dividing faceplates, and this is just the beginning.

Pop faceplate (red)

Pop music needs full low frequency and abundant dynamics. The pop faceplate adopts the classic low + mid + 2 high frequency three-way architecture design to improve the low frequency volume and texture, retaining the original dynamics of the driver, the sound field is magnificent, majestic, and full Surging sense of hearing.

Reference faceplate (black)

A balanced sound requires restraint and control. The reference faceplate adopts a three-way architecture design of ultra-low + full frequency + 2 high frequency, which controls the energy distribution of the full frequency band to the right degree, and accurately controls the dynamics of the overall sound, the sound is calm, clean, and reference sound.

Transparent faceplate (blue)

In order to keep the sound transparent and clean, the transparent faceplate uses the full frequency + 2 high frequency two-way architecture design, the full frequency driver maintains the integrity of the music, and the two high frequency drivers provide excellent high frequency response and ductility, sound gorgeous, and moving.

NF Audio NE4acc.jpg


One buckle and one twist, change has never been easier

For commodities, ease of operation is very important. The NE4 Evolution faceplate and frequency divider are combined into one. Only screws can be used to replace the faceplate and sound at the same time. Whether it is the standard faceplate or the follow-up special tuning faceplate, is the same simple operation, very different sound.

Classic American Knowles 4 balanced armature, good raw materials, good taste

The driver is the base of the sound, and the driver is good enough to get a better sense of hearing. NE4 Evolution adopts the classic four-driver combination of Knowles 22955 + 29689 + 31736 (composite driver), with full cover of low frequency, intermediate frequency and high frequency. With high-quality sound bottom and different frequency dividing faceplates, every sound can stand the test.

Exquisite products, the soul of evolution. 5-axis CNC precision-carved shell aluminum, stainless steel precision art

Metal not only has a super texture, but also a long service life. CNC precision carving is a pearl of precision metal processing technology. NE4 Evolution adopts 5-axis CNC precision carving to process a whole piece of aviation aluminum ingot and stainless steel, achieving a good balance in weight and strength. Only exquisite products and evolving souls can exchange for long-term company.

What you care about, we care more. Stable and reliable connection, gold-plated layer up to 10μ, life test 100,000 times

The frequency divider is replaceable, and the connection between the driver and the frequency divider is the top priority. The driver end adopts military-grade spring probes, which has lower distributed capacitance and inductance. The gold-plated layer is as high as 10μ and has passed the life test of 100,000 times. The frequency divider adopts PCB pad + copper pillar design, which is stable. The stability and reliability of the connection are as important as innovation, and all the details are for a more excellent user experience.

Small investment, big change, the sound exploration

For NE4 Evolution, the core value lies in continuous sound evolution. We will launch official frequency dividing faceplates one after another to suit different music styles and usage scenarios.

In the near future, the official will also launch a DIY kit and provide official tutorials. Friends with hands-on ability can create their own exclusive sounds.

We hope to use NE4 Evolution as the medium to create a complete frequency dividing faceplate ecosystem. Let every mood be placed somewhere and have a sound to follow. Let every love be unswerving and go all out.

2pin 0.78mm transparent silver-plated cable

The impedance, capacitive reactance and inductive reactance of the earphone cable will have a significant impact on the sound. NE4 Evolution comes standard with Litz structure 5N oxygen-free copper silver-plated cable, with up to 280 cores, lower impedance, lower skin effect and proximity effect, making the sound details more, the sound field is open, and the tone is relax.

NF Audio NE4iems.jpg


Every tiny detail is for a more hearty listening experience

The ergonomics of in-ear earphones is equally important. The proportions and contour lines of the NE4 Evolution condense the profound skills NF Audio has accumulated in the field of custom earphones over the years. The sunken of the helix angle, the bulge of the cymba, the notch between the tragus and the angle of ear canal, the large and small shapes inside and outside the concha cavity, every tiny detail is for a more hearty listening experience.

Romantic gifts from hardcore brands

In life, the sense of ritual is very important. The beautiful packaging box and the right accessories make the hard core also have a unique romantic beauty.

NF Audio NE4F.jpg


Link :

https://penonaudio.com/nf-audio-ne4.html
 
PENON Stay updated on PENON at their sponsor profile on Head-Fi.
 
https://www.facebook.com/groups/1221974387914138/ https://twitter.com/PenonAudio?s=09 https://www.instagram.com/penonaudio/ https://penonaudio.com/ penonaudio@hotmail.com
Aug 19, 2021 at 9:43 AM Post #9 of 10

Dsnuts

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So I have been listening to these and testing out each of the plates they include for the NE4. The sound quaility, especially for their refrence plate is remarkable. It is by far their best sounding earphone I have heard from NF audio. I own an Andromeda S and I would equate the sound quality level to those. It has the widest stage of any NF audio earphone I have reviewed.

Their Pop plate is my 2nd fave of the 3 plates. I have no idea how they were able to boost 15dbs of bass using a BA and make it sound correct but this changes the sound tuning entirely. A fun take on the NF audio sound.

Their transparent plate is the most flat monitor type of tuning I have ever heard which is an excellent testing plate to evaluate just how much coloration your other earphones have. I have realized this plate while not my favorite for music listening is a valuable tool for me anyways as it does let me critially compare just how much boost another earphone will be in comparison. It has become a valuable reference tool for me.

With the promise of new plates. These are remarkable in what they have achieved. Will have much more to say on my review of them soon.
 
Oct 19, 2021 at 11:15 AM Post #10 of 10

KickAssChewGum

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Ahead of my full review (which will be completed in the next couple of weeks) I just wanted to post a few first impressions of the NF Audio NE4. I’ve been aware of NF Audio for a while, but this is the first time I’ve actually listened to any of their products, and I must say I’m super impressed.

The NF Audio is a 4 BA model with one key feature, namely changeable faceplates that contain different crossover circuitry. Unlike most IEMs that have different switch settings (with the exception of the exceptional @Penon Legend – more on that next week), the NE4 faceplates make a considerable change to the sound signatures by utilising the drivers in completely different ways. And each of these sound profiles are carefully and thoughtfully tuned for very specific use cases. The black ‘reference plate’ has a pleasantly balanced signature with a slight low-end bump. The red ‘pop’ plate significantly increases the thump in the lower registers (by several dB) whilst recessing the mid-range slightly and smoothing out the treble marginally. Whereas the blue ‘transparent’ faceplate presents a signature that might accurately be described as ‘most neutral’, with an almost completely linear presentation from the lower to mid registers and a slight bump in the treble. All discernibly different signatures for very different listening experiences, all three of which are extremely satisfying in their own right.

My only gripe so far is with the stock cable which, whilst not particularly egregious in any way, just doesn’t bring out the best of what this IEM can offer. As soon as I switched the cable to something a little more suitable, the NE4’s showed their true colours and have provided me with several hours of listening pleasure with all of the faceplates.

Will all three signatures be right for everybody. Of course not (the ‘transparent’ plates likely to be the most divisive) but surely that’s the point of having changeable signatures in the first place.

With the NE4 you genuinely do get 3 IEMs in one for a very reasonable price given what they offer! And, apparently, NF Audio may be releasing additional faceplates/crossovers for the NE4 too.

NE4a.jpg
 

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