The Hidizs MS2 Pro was kindly provided free of charge in exchange for an honest review. I didn’t receive monetary or any other kind of compensation and I don’t use affiliate links.
The price of the MS2 Pro is $79.99 and you can buy it from Hidizs’s official store.
Hidizs
Founded in 2009, Hidizs is a Chinese audio brand known for making high-quality yet affordable Hi-Fi gear. Specializing in digital audio players, USB DACs, and in-ear monitors, the company has built a strong reputation among audiophiles around the world.
You can click here to read further Hidizs reviews and get to know their products.
Hidizs MS2 Pro
After the release of the much acclaimed MK12 “Turris”, a single dynamic driver IEM with a pure magnesium dome, Hidizs strikes again with a newer and more affordable model, the MS2 Pro which is the successor of the MS2.
The Hidizs MS2 Pro is a dual driver, hybrid IEM that combines one dynamic and one balanced armature drivers. More specifically, a 10.2mm dual cavity dynamic driver that handles the low and lower-mid frequencies together with a custom-tuned Silvercore BA driver for the mids and the treble.
The dynamic driver features a PU+PEEK diaphragm with a diamond-like carbon (DLC) nano-coating. The MS2 Pro is also equipped with high-grade N52 magnets in a dual magnetic circuit design that greatly enhances magnetic flux density.
Pneumatic tuning filters
The MS2 Pro is designed with interchangeable pneumatic filters that allow the user to easily switch between three different sound signatures. The nozzles with the red ring around them offer the most balanced tuning, the white ones are used to enhance the treble and the blacks are for bass boosting.
The filters, when combined with the two types of silicone ear-tips that are included in the package (white/high frequency and black/balanced), can offer a total of six different sound styles.
Design and wearing experience
The well crafted ear-shells are made of ZA12 zinc alloy material that is 5 times harder than aluminum and offers 98% resonance absorption. They have a mirror-like polished finish that adds a premium feeling to the earphones but it stains a little.
The faceplates have a leatherette texture panel with a scratch-resistant treatment that is supposed to be as hardy as rhino’s skin according to the marking material. They are available in three different attractive colors to choose from, sunset orange, royal blue and midnight black.
The ear-shells have an irregular trapezoid shape with a small transverse vent at the faceplates that helps with pressure relief without compromising noise isolation. The acoustic cavity is ergonomically shaped with a mold that is crafted from data based on over 100,000 ear shapes.
The earpieces weigh 13g each and are a little bulky but the overall wearing experience is actually comfortable and stays such even after a couple hours of use. I would prefer longer nozzles but most people are going to find the fit stable and firm.
Stock cable and accessories
The MS2 Pro is equipped with a 1.2m long cable made of silver-plated OFC twisted pair wires that is soft and easy to handle but has the tendency to tangle. It is a cable with 2-pin plastic connectors and a high quality aluminum plug that you can choose between 3.5mm and 4.4mm variants upon placing your order.
The package also includes two types of silicone ear-tips in three sizes each and a small carrying pouch instead of a regular carrying case.
Power requirements
With an impedance rating of 17Ω/111dB, the Hidizs MS2 Pro is easy to drive straight out of a phone’s or laptops’s headphone jack if they happen to have one. But even if they do, it is much better to use at least an entry level USB DAC dongle for better audio quality. Hidizs has plenty of options, starting from the very affordable SD2 and rising higher to the S8 Pro or the S9 Pro Plus models.
Listening impressions
After a refreshing interval with the mostly neutrally tuned MK12 “Turris”, Hidizs is back to the beaten track as it has chosen to tune the MS2 Pro after the H-2019 target curve. They have gone even further by generously emphasizing the bass, granding it the leading role.
Let’s make it clear straight from the beginning, the Hidizs MS2 Pro has a crowd pleasing, bass-emphasized tuning, completely omitting low-end tonal accuracy. The bass is too boosted to be considered as tonally correct by neutral reference standards, so most low-pitched acoustic instruments sound heavily coloured and quite out of tune.
On the other hand, this kind of tuning is extremely enjoyable and fun as it works wonders with music styles like EDM, modern pop and electronic music. The MS2 Pro is tuned this way not by a coincidence or bad engineering but on purpose as Hidizs decided to make it appealing to a wider target group than just a few audiophiles.
The thundering bass is muscular and weighty with visceral textures yet surprisingly clean and well defined. It is punchy and impactful while staying fast, tight and controlled enough. The low-end might be getting the lion’s share but it doesn’t bleed too much into the mid-range or compromise the clarity of the higher frequencies.
More listening impressions
The MS2 Pro combines a bass prominent sound signature with a present and clean sounding mid-range. The listener can easily follow vocals and every other instrument playing in the background and not just the bass-line alone. The mids have good transparency and clear articulation with satisfying tonal balance and plenty of musical expression.
The higher frequencies are generally speaking smooth and polite, however without lacking in energy and extension. The Hidizs MS2 Pro packs plenty of clarity and resolution thanks to a gentle boost in the presence area that is controlled enough to avoid causing listening fatigue. There is plenty of brilliance and sparkle to counter balance the prominent low-end but the MS2 Pro doesn’t end sounding too bright or sharp.
Earphones with bass heavy tunings usually don’t excel in spaciousness and imaging but the MS2 Pro is an exception as it sounds open and wide enough with a decent sense of depth and satisfying positioning accuracy.
The tuning filters
The base listening impressions apply to the red tuning filters that offer the most balanced sound signature. You can use the other two options to add more bass or extra brilliance.
The black filters work by slightly attenuating a portion of the upper mid-range, thus giving the false but audible impression that the bass stands out as more prominent. The differences are quite subtle though in comparison with the red filters, so don’t expect any miracles to transform the MS2 Pro into the ultimate bass-head earphone.
The white filters are much more effective in achieving their goals by adding a generous boost to the whole upper mid-range and a small tilt to the presence area. Thus the MS2 Pro sounds considerably more sparkling and brilliant in comparison to the red filters but also a tad strident and sharp. The treble is more exciting and resolving but thankfully it doesn’t become artificially metallic or too dry. The white filters in combination with the white ear-tips reward the listener with a more lively sound presentation and an airer soundstage without attenuating the bass.
In the end
The Hidizs MS2 Pro are exceptionally well made and premium looking earphones that are also comfortable to use and easy to drive. They have a bass emphasized yet balanced tuning that sounds fun and exciting with most music styles while it can be further personalized thanks to the interchange tuning filters. The Hidizs MS2 Pro is a worthy successor of the MS2 that easily earns its own place in a very crowded market.
Copyright – Petros Laskis 2025.
+ Generously emphasized yet not too overpowering bass
+ Weighty and impactful low-end with good technicalities
+ Present mid-range and brilliant treble
+ Relatively spacious soundstage with sufficient imagining
+ Easy to drive from portable sources
+ Excellent build quality and premium appearance
+ Comfortable wearing experience
+ Interchangeable tuning filters
+ Decent cable that can be ordered with 3.5mm or 4.4mm plugs
+ Two sets of ear-tips and a carrying pouch
- The low-end is out of tune by reference standards
- Too much bass for critical listening
- The black filters are not that effective in boosting the bass
- The white filters can introduce some sharpness
- Relatively weighty and bulky ear-shells
- No hard carrying case
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