- Recommended for people like this
- Overview of HZSound Heart Mirror ZERO
- Features of HZSound Heart Mirror ZERO
- Build quality
- Sound quality
- Sound quality features
- General comment
- Purchase link
- 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.
Recommended for people like this
- 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
- 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!
- Frequency response: 15Hz to 40kHz
- Impedance: 32Ω
- Sensitivity: 112dB
- Connector: 0.78mm 2pin
Features of 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.
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!!
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.
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!!
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.
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.
The quality of the packaging meets the price standard.
- HZSound Heart Mirror ZERO
- Carrying pouch
Build quality meets the price standard.
The fit is good.
REW Frequency Response
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.
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.
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.
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.
Sound quality general comment
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.
Sound quality features
- 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
- Lacks a sense of weight
- Lacks groove
- A little aggressive sound for those sensitive to high frequencies
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.