audio-sound @ hatena

An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.

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(Chi-fi IEM Review) HZSound Heart Mirror ZERO: For those looking for bright studio monitors

HZSound Heart Mirror ZERO

 

 

Disclaimer

  • This review is based on "private purchases" or "items rented for a consideration".
  • No remuneration or compensation, such as a manuscript fee, has been received for publishing this, and it is an honest evaluation based on measurement data from personal testing and personal opinion.
  • Please read the privacy policy of this website.

 

  • People who don't like sounds with a lot of low frequencies
  • People who like bright monitor sound like Etymotic
  • People who value resolution
  • People who value fidelity to the original sound
  • People who value detail
  • People who value cost performance

 

Overview of HZSound Heart Mirror ZERO

This review will give an overview of HZSound Heart Mirror ZERO. A complete review of this product can be found here.

 

audio-sound Score

  • Total Score: 9.2 / 10.0
  • Package: 8.0 / 10.0
  • Build quality: 8.5 / 10.0
  • Fitment: 8.5 / 10.0
  • High range: 9.0 / 10.0
  • Mid range: 10.0 / 10.0
  • Low range: 9.0 / 10.0
  • Less distortion: 8.5 / 10.0
  • Cost performance bonus: 12.0 / 10.0

 

  • Want to see the score ranking? Click here!

 

Basic Specifications
  • Frequency response: 15Hz to 40kHz
  • Impedance: 32Ω
  • Sensitivity: 112dB
  • Connector: 0.78mm 2pin

 

Features of HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

 

 

  • Re-Optimized Version Of OG Heart Mirror.
  • 10mm CNT Diaphragm Dynamic Driver Unit.
  • High-Flux Powerful Magnetic Architecture.
  • Imported CCAW Voice Coil.
  • Enhanced Tuning with Improved Bass and Livelier Treble.
  • Upgraded Stock Cable.
  • High-Precision CNC Machined Zinc Alloy Ear Cavities.
  • 0.78mm 2-Pin Interchangeable Cable Design.
  • High-Purity OFC Silver-Plated Cable.
  • Comfortable L-Shaped Termination Plug.
  • Comfortable & Ergonomic Design.

 

blog.ear-phone-review.com

 

Heart Mirror Zero is a completely redesigned and reoptimized version of the OG Heart Mirror. It has got a new tuning profile and a new upgrade cable. The Heart Mirror Zero houses the same acoustic structure as the OG Heart Mirror model, but with new tuning, it delivers an impactful lower end and clean, lively treble response. With a premium 10mm CNT Diaphragm dynamic driver unit, the Heart Mirror Zero delivers quality sound with great resolution and clarity!!

 

HZSound Heart Mirror ZERO

 

Tuned For Enhanced Sound Experience

HZ Heart Mirror Zero is an enhanced version of the highly-acclaimed Heart Mirror. The pair is tuned to deliver a powerful lower-end response with a sweet midrange and natural high-frequencies. The pair has aimed to surpass the musicality and sound quality of the OG model at a lower price point.

 

HZSound Heart Mirror ZERO

 

Premium Hand-Polished Zinc-Alloy Ear Shells

HZSound has treated the all-new Heart Mirror Zero with high-precision CNC machined and hand-polished ear cavities. The shells are hand-polished by skilled professionals, the pair adopts a shiny grainy texture on the surface!!

 

HZSound Heart Mirror ZERO

 

High-Quality CNT Diaphragm Dynamic Driver

HZSound Heart Mirror Zero houses a 10mm dynamic driver unit. This driver adopts a high-rigidity Carbon Nano Diaphragm, high-performance NdFeB magnets, and imported CCAW Voice Coil.

 

HZSound Heart Mirror ZERO

 

High-Fidelity Stock Cable

HZSound Heart Mirror Zero includes a high-purity OFC silver-plated high-fidelity stock cable. High-Purity wire cores ensure smooth signal transmission promising clean and distortion-free sound. This cable also helps in achieving the desired sound response with the pair. It has 0.78mm 2-pin connectors and a 3.5mm termination plug. Users can also buy the Heart Mirror zero with an in-line mic cable.

 

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO
HZSound Heart Mirror ZERO
HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

 

package

The quality of the packaging meets the price standard.

 

Package contents
  • HZSound Heart Mirror ZERO
  • Eartips
  • Carrying pouch
  • Manuals

 

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO
HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZEROHZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

 

Build quality

Build quality meets the price standard.

 

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO
HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO

 

Fit

The fit is good.

 

HZSound Heart Mirror ZERO

HZSound Heart Mirror ZERO
HZSound Heart Mirror ZERO
HZSound Heart Mirror ZERO

 

Sound quality

REW Frequency Response

HZSound Heart Mirror ZERO Frequency Response (RAW)

 

audio status

HZSound Heart Mirror ZEROのオーディオステータス

 

Sound quality description

In this review, I use the standard eartips size L and drive it with the FiiO M15.

 

HZSound Heart Mirror ZERO has a neutral and flat sound balance.

 

Please see here for detailed reviews on sound quality.

 

HZSound Heart Mirror ZERO

 

Lows / Bass

The low frequency range of the HZ Heart Mirror ZERO is fairly linear and deep.

 

The low frequency range is adjusted close to that of so-called flat monitor speakers, and while it is considered to be lacking in volume for many people when considered from an auditory neutral perspective, it will feel rather familiar to those who use monitor speaker sounds or standard monitor headphones designed with a somewhat older approach.

 

Drum kicks have plenty of impact and a reasonable amount of weight, but tend to lack a bit of depth. It tends to sound tap-like light. The beauty is that the rhythms are easy to understand because they sound clean instead of raw.

 

The electric bass is also a bit brighter and has a good perspective, but it sounds shallow.

 

The advantage of suppressing low frequencies is that they do not interfere with the mid-range, making it easier to gain resolution, but the Heart Mirror ZERO's low frequencies lack a bit of weight and depth, making the music sound a bit light overall. Also, since studies have shown that the depth of low frequencies affects the realism of music and the groove (that makes your body move involuntarily), low frequencies like those of Heart Mirror ZERO are not expected to be very integrated with the music.

 

Conversely, if you want to listen calmly with clear eyes and a sense of distance from the music, I can say that this kind of low frequency would be good.

 

HZSound Heart Mirror ZERO

 

Mids

The midrange of the HZSound Heart Mirror is tuned almost neutral, and the texture is quite accurate.

 

The midrange sounds very bright and forward, with excellent perspective.

 

There is a tendency toward a slightly stronger sibilance, with a high sense of piercing, and a slightly noticeable overall raspiness. Vocals therefore sound crisp and consonant-dominant, but slightly lacking in fullness. The shoutiness is not so pronounced, but it sounds a bit aggressive. Also, depending on the source, it leans a bit toward the Tinny sound, which can easily take on a leaden, dull metallic sheen to the sound, which may be a problem for some.

 

Overall, it is a well-tuned studio monitor type tuning, and can be said to be quite excellent.

 

HZSound Heart Mirror ZERO

 

Highs / Treble

The high frequencies of the Heart Mirror ZERO are tuned to attenuate quite smoothly and are close to the localization of the speakers. Extension, however, is quite lacking.

 

The highs are aggressively balanced for many due to a perceived lack of airiness, a higher adjustment for sibilance and piercing, and a low amount of low frequency content. The adjustment may be a bit jarring to those who are sensitive to high frequencies, although I don't think the harshness is too strong due to the lack of peakiness. I find that the "ch" and "ts" tend to come out quite harshly, depending on the sound source, but not to the point where they are uncomfortable and hard to listen to. However, since I usually listen at less than the proper volume, it would be tougher for someone who listens at a higher volume.

 

However, the lack of airiness affects the listening comfort, and it is expected that a feeling of tiredness may occur easily.

 

HZSound Heart Mirror ZERO

 

Sound quality general comment
  • Original Sound Fidelity: S-
  • Recommendation: S-
  • Personal preference: A

 

The HZSound Heart Mirror ZERO is generally an excellent, bright monitor sound, and is highly recommended for those who prefer a sound with high resolution and detail in the midrange and analytical tendencies.

 

Instead, it will sound cheesy and almost unappealing to low-frequency lovers.

 

HZSound Heart Mirror ZERO

 

Sound quality features

Pros
  • Excellent texture
  • Bright midrange
  • Excellent original fidelity
  • Monitor-like low frequencies
  • Good detail
  • Excellent resolution
  • Smooth, well-damped highs
  • Good focus on midrange
  • Good sound balance
  • Speaker-like forward localization
  • Subtle

 

Cons
  • Lacks a sense of weight
  • Lacks groove
  • A little aggressive sound for those sensitive to high frequencies

 

General comment

The HZSound Heart Mirror ZERO is a bright studio monitor-like sounding in-ear monitor available at a low price. Not only does it offer high-resolution sound at a low price, but the package is also above the price level, so it is a product that can be recommended because it offers considerable promise in terms of overall satisfaction.

 

HZSOUND Heart Mirror Zero

HZSOUND Heart Mirror Zero
HZSOUND Heart Mirror Zero

$32