KIWI EARS Singolo

General Information

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Revolutionary KARS Technology: Experience unmatched bass quality with the Kiwi Acoustic Resonance System (KARS). Unlike traditional crossovers, KARS ensures a pure audio experience, free from distortion.

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Custom LCP Diaphragm Driver: Crafted with a custom 11mm dynamic driver and Japanese Liquid Crystal Polymer (LCP) diaphragm, the Singolo delivers precise sound fidelity.

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Tuned to Crinacle's Signature: Tuned to Crinacle's tonal signature, the Singolo boasts an 8dB sub-bass shelf for powerful yet pristine bass, complemented by a neutral midrange and clean treble. Enjoy a natural sound signature akin to a subwoofer without the subwoofer.

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Detachable Cable System: Equipped with a detachable cable system featuring 2-pin 0.78mm connectors, the Singolo offers a customizable user experience and increased lifespan, allowing users to swap cables effortlessly.

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SPECIFICATION:

MODEL
: KIWI EARS SINGOLO
IMPEDANCE: 32Ω
SENSITIVITY: 108dB
FREQUENCY RESPONSE: 20Hz - 20KHz
CABLE LENGTH: 1.2M
PIN TYPE: 0.78mm 2-PIN CONNECTOR
PLUG TYPE: 3.5mm
DRIVER UNIT(S): 1 DYNAMIC DRIVER

Latest reviews

trippleed

New Head-Fier
Kiwi Ears Singolo - An IEM with Unique Character?
Pros: * Unique Bass: The Kars technology delivers a deep, immersive, and textured bass experience that distinguishes it from other single dynamic driver IEMs.
* Comfortable Fit: The resin housing provides a comfortable and secure fit for most users.
* Balanced Tuning: The overall tuning is well-balanced, making it suitable for a wide range of music genres.
* Good Value: Considering its sound quality and unique bass performance, the Singolo offers good value for its price.
* Relaxed Listening Experience: The smooth treble and balanced mids create a comfortable and enjoyable listening experience for extended periods.
Cons: * Poor Accessories: The included eartips and cable are of low quality, and the lack of a carrying case is a significant omission.
* Mid-Bass Control: The mid-bass can lack focus and tightness, especially on faster-paced tracks.
* Limited Bass Speed: The bass response may not be ideal for genres that require fast and tight bass.
Kiwi Ears Singolo - An IEM with Unique Character?
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Introduction:
Firstly, I would like to thank the Kiwi Ears team for sending me this IEM for review.

Let's discuss the packaging first - it's a bit disappointing. The 6 pairs of included eartips are of poor quality and unusable, a characteristic of Kiwi Ears from the Cadenza era. I recommend replacing them immediately. I used Fiio HS20 eartips for this review.

Regarding other accessories, there is no case, and the cable is of standard quality with a thin gauge. Fortunately, the cable's sound quality is decent, not significantly impacting the IEM's performance.

The housing is made entirely of resin, offering good quality for the price. The resin feels more solid compared to the resin used in the Sonus and Tin T3. The fit is comfortable and secure in my ears.

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This IEM requires moderate power, and a budget DAC like the Fiio JA11 is sufficient. Now, let's move on to the sound impressions.

Bass:
The Singolo has a warm tonal balance with a slight sub-bass boost. The eartips significantly influence the bass response, as the Singolo is quite sensitive to them. If the fit is incorrect, the mid-bass texture and impact can become thin and lacking in fullness.

Fortunately, the Fiio HS20 eartips provide a good fit, resulting in a full and rounded bass. The Kars technology, previously considered a gimmick by some, actually plays a crucial role. In my opinion, the perceived "gimmick" arises from improper eartip selection. The bass sensation of the Singolo is distinct from other single dynamic driver (DD) IEMs like the Blon BL03 II or Tin T3.
The deep and spacious sub-bass creates an engaging bass experience.

Listening to other IEMs without Kars technology can make you yearn for the bass sensation of the Singolo.
While the implementation of Kars in the Singolo differs from the Magic One (where the sub-bass feels excessive and less controlled), the bass decay, although extended, doesn't negatively impact other frequency ranges.

Despite the generally positive impression of the bass, I find the mid-bass control to be slightly lacking. With the stock cable, the mid-bass on tracks with fast tempos can sound less focused and appear less defined than in other IEMs, where it would typically be more rounded.

This makes the bass speed of the Singolo appear average in my opinion. Fortunately, this can be mitigated by using a different cable, such as the Xinhs SCC, which improves bass roundness and speed.

Mids:
The mids are positioned slightly behind the bass. The presentation of male and female vocals is balanced. While not exceptionally special, the vocal reproduction is well-balanced and safe. For example, the vocal weight is sufficient, the upper mids are relatively open, and the vocals sound smooth and slightly sweet.

Another aspect I appreciate about the mids is the minimal peak and sibilance. This makes the Singolo comfortable for extended listening sessions. The midrange instruments also sound natural and energetic, despite the IEM's relaxed tuning.

Treble:
Due to the relaxed tuning, the treble is positioned slightly laid-back. The treble energy is balanced, neither excessive nor deficient. The treble weight is relatively dense, especially in the lower treble region, although the extension and sparkle are adequate. There's a slight roll-off in the treble extension.

Similar to the mids, the treble in the Singolo exhibits minimal peak, graininess, and sibilance, particularly in the 8kHz region. The treble tuning feels natural, mature, and not overly emphasized, perfectly aligning with the target of a relaxed and musical IEM.

Technical Performance:
Initially, I underestimated the technical performance of this IEM. However, upon closer listening, it can compete with other IEMs in its class, such as the 7Hz Sonus, Sivga Que, or Soratune YI01.

The soundstage is relatively wide, with good depth and height. Imaging is reasonably precise, although not as precise as the Soratune YI01. The separation, for a single DD IEM, is quite good, but still not on the level of the YI01.

Detail, resolution, and micro-detail retrieval are good and sufficiently clear, despite the less prominent treble. The key lies in the well-balanced tuning without excessive dips in the 3.5-6kHz range. The Xuan Ji should aim for this level of tuning.

Transient speed is reasonably fast with good dynamics, but it's not suitable for hardcore metal music, as it doesn't match the less tight bass character.

Clarity is adequate, and the overall tuning is well-balanced and safe.

Outro:
As the title suggests, this IEM truly has a unique character. The single DD technology with Kars acoustic chamber creates a unique bass tuning, although it may not be ideal for hardcore metal music.

The overall sound direction leans towards musicality with a relaxed tuning. It's comfortable for extended listening and suitable for various music genres except for hardcore metal.

The main shortcomings lie in the packaging and accessories. The included eartips are useless, the cable is thin, and there is no case in the box.
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Pawsu1

New Head-Fier
Kiwi Ears x Crinacle Singolo Review
Pros: +Warm neutral sound signature
+Thumpy bass
+Impressive subbass performance
+Clean and smooth mids
+Energetic uppermids
+Non fatiguing treble
+Wide soundstage
+Beautiful resin design
+Excellent build quality
Cons: -Flimsy cable
-Bass lacks texture
-Lacks sparkle in upper frequencies
-Imaging can be better(weak sources)
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Intro

Kiwiears Singolo is equipped with Custom 11mm Dynamic driver with KARS. This is an interesting collaboration with Crinacle with a twist on its contruction. The added KARS (Kiwi Acoustics Resonance System) seems effective, in my experience it takes the bass of singolo to the next level while retaining that smooth and lush midrange.


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Disclaimer

I would like to thank Kiwi Ears for arranging the Singolo for evaluation. My opinions are unbiased, and I haven't been influenced or instructed to praise these IEMs. Every detail in this review is actual experience made by listening for hours everyday.


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Specifications

Model

Kiwi Ears x Crinacle Singolo

Drivers : Custom 11mm Dynamic Driver + KIWI Acoustic Resonance System (KARS)

Frequency Response : 20Hz- 20kHz

Sensitivity : 108dBSPL/mW

Impedance : 32 ohms

Earphone Material : Resin

Cable Length : 1.2 meters

Cable Interface : 2pin 0.78mm

Plug Type : 3.5mm Mini-Jack

Inner Nozzle Diameter : 4mm

Suitable Ear Tip Size : 4-4.5mm


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Packaging

Pair of Kiwiears Singolo
Set of white eartips
Set of black eartips
2 Pin 0.78mm Cable
Manual guide


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Build and Comfort

When I was examine the singolo I cant get off my eyes on this, it has eye-catching design and the body is made out of transparent resin but be careful not to drop this. Comfort factor? It is very comfortable, stable fit and lightweight it fit like a glove feels like your putting a candy ball on your ear.


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Sound Aspects


Source used :


IQOO Neo9s Pro

Onix Alpha XI1

Fosi Audio SK02

Fosi Audio ZD3

Boaleco PX2 Tube Amp


This iems spend 50-60 hours of burn in using pink noise before taking details of this review


KiwiEars x Crinacle Singolo is a warm neutral tuned iem focusing on giving satisfying lows to the listener while retaining the exceptional quality in the midrange section.


Bass

The bass is thumpy, fast and controlled it never crossed the mids. This warm satisfying subbass delivers long and rumbly character I think this is where it excels. When I'm listening to some rock and EDM songs like SABAI and Hoang the well layered bass to the presentation sounds pleasing to the ears without mixing with other frequencies.


Mids

The mids is organic, clean and lush. It is well textured and smooth. The vocals is frontal and engaging it doesnt lacking in terms of sweetness. I found the female vocals is better than male vocals. Maybe I'm wrong but still it boils down to others preferences. The midrange instruments have very impressive separations for the price.


Treble

The non fatiguing treble of Singolo is a huge plus you can listen to these for hours. It remain its detailed, airy and well extended highs without the cost of being harsh. When I used a decent source to used with these, the treble have great note weight and now it is airier. This is tuned for relax and chill listening sessions because of its non offensive highs.


Technicalities

This section also aligns to the value it gives. These offers wide soundstage and well layered presentation. The imaging is quite off when you used a weak sources like phone but when I used my Fosi Audio ZD3 with Tube Amp the singolo shows its true performance. The immersive and detailed character is very satisfying to the ears and the imaging improved a bit. I recommend to use a decent source to awake its driver.


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Conclusion

Singolo is an interesting in ear monitor from Kiwiears. I really liked the smooth and soothing vocals incorporated with engaging warm lows, it gives you a relaxed tone that you can listen for hours. For 59$ I can recommend these for those people that is sensitive to treble and seeking for an iem that have inoffensive highs. Singolo is worth considering.


Non affiliated link below :
https://kiwiears.com/products/kiwi-ears-x-crinacle-singolo

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Nasfar

100+ Head-Fier
Worth considering under $100
Pros: Impressive Build Quality

Extremely Lightweight

Warm to Neutral Sound Signature

Clean Sub-Bass with Ample Mid-Bass

Exemplary Vocals

Admirable and Lovely Treble

Excellent Technical Price to Performance

Fabulous Soundstage
Cons: Flimsy Cable

Horrible Stock Tips

No Carrying Pouch (quibbling)

Introduction

Right from the start, you can see that this IEM is made in collaboration with the Audio Enthusiast Crinacle. The Kiwi Ears x Crinacle Singolo features a custom 11mm dynamic driver and the Kiwi Acoustic Resonance System, or short for KARS, which promises a riveting audio experience. I believe the shell of the Singolo sort of represents serenity from the watery and sandy design. The Singolo is priced at as little as $79.00 and currently on sale for a mere $59.25 on Linsoul; it definitely is an item worth considering.

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Testing Gear:
Roze Technics RZ-300M

Technical Specification:

● Driver: 11 mm custom dynamic driver + KIWI Acoustic Resonance System (KARS).

● Frequency response: 20Hz-20kHz.

● Sensitivity: 108dB

● Impedance: 32 Ω

● Earphone Material: Resin

● Cable Length: 1.2 meters

● Cable Interface: 0.78 mm

● Plug Type: 3.5 mm Mini-Jack

● Inner Nozzle Diameter: 4 mm

● Suitable Ear Tip Size: 4-4.5 mm

Packaging

● Singolo Drivers

● Six pairs of Ear Tips (three pairs of white and three pairs of black)

● SPC Cable

● User Manual

Pairing

● Dunu Candy Tips

● Dunu White Balanced Tips

● Divinus Velvet

● ePro Propeller Pro01

● ePro EP01

● ePro EP00

Before we head off to the sound and technical bits, I want to add that I found the Candy tips and the ePro Propeller Pro01 tips to be the most suitable for the Singolo. My review on Singolo is made with the Candy tips attached. Therefore, the sound compartment of the review is totally based on it.

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Sound Quality

Before we dive deeper into the sound quality of Singolo let us talk about the inside that is capable of providing such an admirable sound.

The Singolo has a single 11 mm LPC driver that seems to work well with their KARS. Instead of an open airflow with RC, the Singolos “Helmholtz resonance” channels by leveraging air flow to tweak the tuning and use it for their own advantage.

From my viewpoint, the Sub-Bass of Singolo is outstanding and different alongside the mids in the $100 mark. The Sub-Bass is most definitely the best in this price point. The Singolo is just different in a good way, even in this mark.

In general, it's a Sub-Bass focused IEM with a clean, warm mid-range with exemplary vocals and quite airy and sparkly treble, which is good for most audience, seems to be a versatile choice. However, tip rolling is recommended due to its poor stock tips.

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Sub-Bass

The Sub-Bass is impeccable. It's really deep and fuller sounding. It does not bleed too much in the mid-range, which creates an appreciable separation. Furthermore, it has a really soothing texture with good details. The sub-bass is extravagant and gives an immersive experience. Overall, I've really liked how deep, rumbly and well controlled it is.

Mid-Bass

Mid-Bass is respectable, but not as pleasing and profligate as the Sub-Bass. It is impactful, well controlled while still providing punchy and hard hits. Moreover, they do not bleed into the mids which is a huge plus in this price point. The mid-bass is pleasing and sounded satisfying.

Mid-Range

The Mid-range is commendable. Those who love mids would definitely appreciate the performance it puts out. It sounds sweet, natural, and organic. Pianos and violins sounds great. Most string instrument sound great on them, except few tracks with acoustic guitars. I personally loved the mid-range.

Male Vocals

The male vocals are natural, detailed, warm and sounds quite substantial with opulent and depth. It's not powerful or energetic. Rather soothing with a little forwardness. The presentation is clean and rich. Those who love themselves a warm, lush, rich, and clean male vocals will instantaneously fall in love with this IEM.

Female Vocals

The female vocals have a bit more energy compared to the male vocals. They are engaging, lively, natural and fills one with the emotions the singers are feeling. Again, the vocals are rich and has good note-weight. It is super engaging.

Treble

The treble section is interesting. It is well-rounded. The Lower treble has good details with a remarkable amount of micro nuances. The Singolo's upper treble has a beautiful sparkle that I liked the most. For a warmish sound, the treble does not lack anything. Moreover, it is capable of producing every intricate musical details.

Instruments

There are a few characteristics of natural harmonics in the Singolo that allow the user to distinguish the various instruments in a mix. The timbre is pretty accurate while the imaging and separation are well-done, thus clear perception of different instruments.
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Soundstage & Imaging

The soundstage is predominantly frontal, a clear sense of volume at the bottom giving it a good level of depth. However, it is not too wide. There is a correct lateral sensation and not too much headroom. The feeling is of a more compact and unified sound, where the separation is not very obvious. It is clear that the Singolo is more musical and fun in their bass section, than technical.

The imaging is so good that it enables the listener to be able to single out every instrument properly and the vocals are easier to distinguish among the instruments, which provides an in-depth listening experience.

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Conclusion

I found the Kiwi Ears' work in creating the KARS thing really commendable. It is clear that their will is to create IEMS that combine a power for bass heads, along with a tuning that tries to be smooth and natural. Thanks to the KARS, the Singolo's bass comes close to the behaviour of a subwoofer. But that very power makes them a specialized IEMS, which distinguishes them from an all-terrain IEMS.

Overall, the Kiwi Ears X Crinacle Singolo is a highly recommended IEM for its impressive sound quality, comfortable fit, and excellent value for money. It's particularly well-suited for those who enjoy a warm, bass-heavy sound signature with clear and detailed vocals. Nonetheless, it is an awesome IEM for every genre of music. I absolutely loved it. However, you will need a good source to drive them. As far as I know they are scalable, so a good source will bring out different versions of them.
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RK Turan
RK Turan
Nice photos, and great presentation overall!
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Nasfar
Nasfar

Comments

Somafunk

500+ Head-Fier
This is my initial impression - not a review

Received them today, nice to see an iem without the cringe waifu crap, packaging is very minimal which I appreciate but no carry case which I'm not too fussed about. Ear tip selection should go straight in the bin as they are utterly completely useless due to the depth of the main body/shell and short nozzles which means you will need a long ear tip to get and maintain a good seal.

I'm currently using medium Moondrop Spring Tips which I believe originally came with the Moondrop Chu I bought last year, the sticky silicone holds them in place but insertion depth is not enough as evidenced by pushing slightly on the shell when the iems are inserted in my ear as the bass increases quite dramatically so I'll need to investigate and purchase a deeper style tip, very solid kick to the bass and deep deep rumble as evidenced on my test track below, obviously I used tidal but provided the YouTube link, no bleed that I could ascertain into the mids, this track also has very high percussion that runs along side the sub bass so good for testing the highs which are nice and crisp yet not piercing.

I'm quite impressed with the cable, nothing fancy but does the job - does hold memory but it's fresh out the box so I'll hang it near the fire for 5 mins to straighten out, very nice small angled 3.5mm jack which I do appreciate, why do iem companies fit massive jacks to iems?.........the manufacturers should take note and drop the oversized 3-way interchangeable jacks, they're not needed.

The body of the iem is quite a small stocky little thing and has a nozzle width of 6.4mm and protrudes from the shell by 4mm at the front of the iem and 5mm at the rear, rather short - you WILL need long iem tips to ensure a good seal and to avoid the iem falling out - Kiwi Ears take note - provide decent ear tips please, The shell is nicely made with the internals clearly visible including the "Helmholtz resonator" which appears to be connected to the 11mm dynamic driver housing at the bottom and the top but my spms is playing silly buggers with my eyesight today so don't take that as gospel, the iem faceplate is a nice azure blue with the kiwi ears logo.

I will have to hold off on a full impression till I source a longer, more secure ear tip but I'll be keeping them.



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