Hidizs MK12 Turris – what a lightweight diaphragm can do

May 27, 2025 ZMarketChangers

Hidizs has recently introduced a new and the most advanced single dynamic driver IEM model that builds upon the strengths of its predecessors and brand experience, while aiming for a higher price segment. This latest release, named MK12 Turris, brings a totally new, extra lightweight, yet powerful, magnesium diaphragm, delivering balanced and precise sound. By the end of this review, we should be able to confirm or challenge this assumption. This release reminds me of a vibe when Hidizs introduced their Mermaid series for the first time, with lots of sound tuning options and ambitious declarations. That series was proven a success, thus, expecting similar from MK12.

Hidizs MK12 Turris Technical Specifications:

Type: singe dd IEMs
Dynamic driver: 12mm
Diaphragm: 91% Pure Magnesium™ M-Shaped Dome Diaphragm
Frequency range: 10Hz – 45kHz
Impedance: 32Ω
Sensitivity: 111dB
Distortion: <0.3%
Cable connectors: 2-pin, 0.78mm
Audio cables: 3,5mm or 4.4mm, high-purity silver-plated oxygen-free copper

Other Declared Features

The 91% Pure Magnesium™ diaphragm enhances transient response, accuracy, and frequency range, surpassing traditional aluminum-magnesium and lithium-magnesium membranes.

The outer shells are one-piece CNC-machined aluminum alloy
Inspired by the Turritopsis dohrnii jellyfish, the design merges evolutionary resilience with modern acoustic engineering
Three pneumatic tuning filters allow users to customize sound across nine different styles, catering to highs, balanced tones, and bass preferences
The MK12 Turris’ lightweight design and precise weight distribution, with each earphone weighing below 10g (excluding cable), ensures a stable and comfortable fit. No extra headphone burden, allowing for long-lasting, burden-free listening pleasure.

Hidizs MK12 Turris is aiming to become a revolutionary addition to the market, offering high-end audio precision at much more affordable cost compared to counterparts that utilize magnesium diaphragms. The combination of customizable tuning filters, ultra-lightweight design and the latest diaphragm technology, promises a lot for severe audio enthusiasts as well as for the casual listeners.

Box and contents:

MK12 Turris arrives in a sleek, minimalist packaging—an understated yet elegant grey rectangular box featuring the brand name, logo, diaphragm description and its picture on the facing side.

Inside, the packaging is divided into three layers:

A top compartment that holds IEMs
A middle layer securing eartips
A bottom section containing the rest of accessories

Box Contents:

Hidizs has ensured a rich selection of accessories, making the MK12 Turris a versatile option straight out of the box:

MK12 Turris IEMs
audio cable (3.5mm or 4.4mm based on the purchase option)
9 pairs (3 types x 3 sizes) of ear tips
3 pairs of audio tuning filters (high, balanced, low frequency)
pouch bag
Warranty card
Short user guide

One of the standout features is the inclusion of the additional sound tuning filters from the factory—something rarely seen in IEM packaging but already quite common for the latest releases from Hidizs. This enhances usability across different scenarios, encouraging anyone to test sound variations and to find the best one for own liking. Rich set of exchangeable ear tips also help a lot to fine tune further and to find the best possible fit.

The included pouch bag is also a welcome accessory, offering some additional practicality. It features stiff magnetic mechanism that secures the possessions.

MK12 Turris Design & Build

The MK12 Turris shells are crafted from CNC-machined aluminum alloy, ensuring precision, durability, and seamless construction. Looks gorgeous, feels very premium. Yes, at the first glance they make some bulky appearance but in fact – each weights less that 10g which ends up in good and comfortable fit.

The top cover features the design that is inspired by Turritopsis dohrnii jellyfish while the sides and the bottom left flat. Fine ground surface details catch reflections beautifully—creating a luxurious aesthetic but not too shiny (thanks to the matt finish). Compensation openings for the dynamic driver are at place, those are not diver-friendly :), but ensure the optimized airflow and acoustic performance. Channel indicator are present. Output nozzles are pretty short, feature inner thread to attach audio filters. 2-pin, 0.78mm cable connectors provide a tight and secure fit, eliminating any free play or rattling of the cable.

Final Thoughts

The MK12 Turris embodies a minimalist yet refined design, with exceptional craftsmanship and premium materials that corresponds to its higher-end positioning. Aluminum alloy and its precise machining contributes to striking appearance, making it very appealing in terms of design. I like it. IEMs has turned to masterpieces in its design and specs long ago, and MK12 is not an exception.

Fit & Comfort:

At first glance, one might assume that the MK12 Turris would feel heavy due to its CNC-machined aluminum alloy shells and slightly bulky appearance. However, this concern quickly diminishes thanks to its custom-type shape, short nozzles and overall ergonomics. MK12 Turris shares a similar profile with other well-fitting models, making it effortless to wear for extended periods. Once in place, the IEMs become almost imperceptible, allowing for long listening sessions without discomfort. Additionally, the noise isolation surpasses the average, effectively blocking out external distractions.

Sound Characteristics of Hidizs MK12 Turris

Tested with Hidizs AP80, Motorola RAZR 50 Ultra. All impressions are described using balanced (rose gold) filters and balanced ear tips.

Lows and Midbass:

One of the standout qualities of the MK12 Turris is its ability to precisely resolve and delicately present the lower frequencies. Unlike bass-heavy IEMs that emphasize low-end dominance, the MK12 Turris takes a balanced approach, ensuring deep bass extension while maintaining exceptional clarity and texture. The bass reaches the lowest registers with defined contours and fast decay, avoiding any interference with mids or treble. This range is not artificially boosted, yet remains consistently present, enriching the overall sound and expanding the perceived stage width. Midbass is tight, punchy, and well-articulated, delivering natural drum reproduction with ample air and impact. Unlike hybrid IEMs, where treble influence can sometimes thin out the lower frequencies, the MK12 Turris adds weight to lower reverbs.

Mids and Vocals:

The midrange takes center stage, offering rich, full-bodied vocals with excellent resolution. Both male and female vocals sound natural, expressive, and slightly warm, with no noticeable imbalance between them. Female vocals benefit from lower treble presence, but thanks to the dynamic driver, there’s no excessive brightness or harshness. Instruments within this range maintain high detail retrieval, reminiscent of well-tuned balanced armature IEMs. Electric guitars and other instruments sound full-bodied, with natural harmonics that enhance realism. Additionally, instrument separation is impressive, contributing to significant stage depth and a layered presentation.

Treble:

The treble is clear and well-balanced with the mids, offering slightly more presence than the lows. While extension, resolution, and micro-dynamics are imressive for a single dynamic driver, they are not as sparkling or vivid as those found in balanced armature models. Most of the treble detail is concentrated in the lower treble, adding transparency and airiness to the sound. This range is precisely controlled, ensuring accuracy without fatigue, making long listening sessions enjoyable. There are no piercing frequencies, excessive sharpness, or sibilance issues, making the MK12 Turris a smooth yet detailed performer.

Soundstage:

The MK12 Turris excels in soundstage presentation, offering one of the most expansive imaging experiences among dynamic driver IEMs. With excellent instrument separation, wide spatial distribution, and deep layering, the MK12 Turris creates a convincing sense of space. The lows and treble contribute to the openness, while vocals remain forward, ensuring a well-balanced and immersive experience.

Overall Sound Signature:

The MK12 Turris can be described as well-balanced, with a slight emphasis on mids and vocals. It exhibits highly textured lows, high clarity treble and natural tonality.

Its versatility makes it suitable for a wide range of genres, including heavy metal and rap, thanks to its accurate bass delivery rather than exaggerated low-end emphasis. However, bass enthusiasts seeking extreme sub-bass dominance may find it more refined than overpowering.

It is getting very close in its sound to the latest planar offerings from Hidizs. Never thought that single DD can be so gathered up in the perception of transient response, speed and overall accuracy. Bleeding here is not a problem and it is getting hard to guess which tech is in your ears at a certain moment.

Conclusion

Three key attributes define the Hidizs MK12 Turris throughout this review: precision, responsiveness and clarity. These qualities extend beyond just the sound, resembling in design and craftsmanship as well. While the MK12 Turris may not rely on flashy aesthetics, its close-to-minimalist approach, flawless construction, and ergonomic shape ensure the mature approach of the developers. This approach carries over into its sound, where each range is delivered with accuracy and in a good balance, resulting in a neutral tonality and expansive soundstage.

In overall, MK12 Turris stands out as a well-rounded and sophisticated dynamic driver IEM, impressing with its sound characteristics, build quality, and balanced tuning. Furthermore, box contents allow for further personal experiments with the sound. For those seeking a great product in single DD category, it would be difficult to find a better match…

Additional information about the launch date and prices:

Kickstarter Launch Date: June 10th, 2024, at 10:30 AM (EST)

Pricing Details:

** MK12 Turris – VIP Exclusive – Limited 200 units only!
Pay a $10 deposit now to secure MK12 Turris for just $109 (MSRP: $199)!
Deposit link: LINK

The $10 deposit promotion for the MK12 Turris will go live from May 26th to June 9th. Feel free to share on your social media.
(Note: The deposit link is not yet active—stay tuned for updates!)

How it works:
VIP members pay a $10 deposit to lock in this exclusive price.
On Kickstarter launch day, you’ll receive a secret link via email to complete your purchase.

** Limited Super Early Bird (300 units only!)
MK12 Turris: $129.00 (MSRP: $199.00)
MK12 Turris + S8 Pro Robin: $179.99 (MSRP: $298.00)

** Early Bird
MK12 Turris: $139.00 (MSRP: $199.00)
Limited Gradient-Tint Titanium Alloy Edition – 499pcs worldwide: $229.00 (MSRP: $299.00)

Kickstarter Link: LINK