HIDIZS MP145 PRO 14.5mm Ultra-Precision Nano-Grade Planar HiFi IEMs

● 1T Fully Symmetrical Magnetic Circuit
+40% Magnetic Flux for enhanced more clarity, stable magnetic field, and greater driver efficiency.

● 14.5mm Ultra-Precision Nano-Grade Planar Diaphragm
+30% more copper & wire density for better detail, faster response, and a wider dynamic sound.

● Sound Signature
Transparent, more controlled bass, a reference-grade midrange with reduced coloration, and exceptional treble extension for a more expansive soundstage.

● Tuning Styles
A Reference / Meta-boundary planar IEMs focused on live realism and sonic truth.

● Ergonomically Optimized Design
Improved fit for extended comfort, with a lightweight 9.5g per earphone housing and tuning nozzles, and consistent acoustic performance.

● Upgraded Durability
Higher hardness cable, interchangeable 3.5mm & 4.4mm plugs, and premium ‘Sea Anemone’ silicone eartips for enhanced comfort and sound isolation.

● Hi-Fi Certified
Ideal for audiophiles, professionals, music lovers, and gamers.

● Ideal For
Audiophiles, professionals, music lovers, gamers, and nature enthusiasts.

● Specifications
Impedance: 30Ω | Sensitivity: 104dB | Dynamic Range: 118dB | Ultra-Low Distortion: <0.05%

● Sub-bass 20Hz – 60Hz
The enhanced 1T Fully Symmetrical Magnetic Circuit and +40% Magnetic Flux will provide an improvement in sub-bass extension and control, ensuring a more powerful and controlled low-end response and faster transient response, without any muddiness or distortion.

● Mid-bass 60Hz – 250Hz
The 14.5mm Ultra-Precision Nano-Grade Planar Diaphragm will contribute to a more controlled and clean mid-bass, while the +20-30% More Copper & Enhanced Wire Density ensures enhancing the clarity and detail in bass-heavy tracks.

● Lower midrange 250Hz – 500Hz & Midrange 500Hz – 2kHz
The planar diaphragm design ensures that the lower midrange remains clean and free of distortion, while the upgraded diaphragm material provides better transient response and smoother sound. deliver more accurate and detailed midrange reproduction, which improves vocal clarity and instrument layering.

● Upper midrange 2kHz – 5kHz
Provides detailed imaging and clarity in vocal performance, making the voice more articulate and distinct.
Important for creating clarity and depth layering in genres like classical, jazz, and acoustic, where the midrange focus is key.

● Treble: 5kHz – 8kHz
14.5mm ultra-precision nano-grade planar diaphragm ensures smooth treble performance and natural extension, while the enhanced diaphragm reduces distortion in the high-frequency range.

● Air / Presence: 8kHz – 20kHz
With its +20-30% More Copper & Enhanced Wire Density, the MP145 PRO improves the high-frequency extension, leading to better airiness and depth layering, which can make music sound more immersive and lively.

While both planar IEMs and full-size planar headphones use the same underlying technology—planar magnetic drivers—there are key differences in size, portability, and sound presentation.

● Form Factor & Portability:
Planar IEMs, like the MP145 PRO, are compact and portable, making them ideal for on-the-go listening. Full-size planar headphones, on the other hand, are larger and more suited for stationary use, providing a larger, room-like soundstage but less portability.

● Comfort & Wearability:
Planar IEMs are lightweight and ergonomically designed for long sessions without fatigue, perfect for commuters and travelers. Full-size headphones, while heavier, offer a more immersive experience with cushioned ear cups for at-home comfort.

● Soundstage & Bass:
Full-size planar headphones typically provide a wider soundstage and more physical bass impact due to their larger driver size. Planar IEMs offer impressive bass control and clarity, but the soundstage is naturally more compact compared to full-size models.

● Detail & Transparency:
Both offer exceptional detail, but full-size planar headphones usually excel in ultra-fine micro-details and subtle nuances, thanks to their larger diaphragm surface. However, planar IEMs still deliver remarkable clarity and detail, particularly for their small size.

● Use Cases:
Planar IEMs are perfect for portable audiophile listening, while full-size planar headphones are better suited for critical listening, studio work, and immersive home audio experiences.

Summary: Planar IEMs like the MP145 PRO are ideal for audiophiles who need portability without sacrificing sound quality, while full-size planar headphones offer more space and dynamics for those seeking the ultimate immersive listening experience at home.

The “Ultra size” refers to the diaphragm diameter of the driver unit, not the entire earphone.

With the MP145 PRO’s ergonomic improvements, the weight of a single earphone (excluding cables) remains below 9.5g, ensuring a lightweight, comfortable experience without compromising on sound quality.

The shell follows the contour of the ear and distributes weight evenly, allowing for extended listening sessions without excessive pressure.

Building upon the aluminum alloy version of the MP145, the MP145 PRO introduces a limited-edition titanium alloy material, elevating both the sound quality and durability of the earphones. Below are the key differences between titanium and aluminum alloy and their effects on audio performance:

1. Density and Rigidity:
Titanium Alloy: Compared to aluminum, titanium alloy is denser and significantly more rigid. This rigidity helps suppress unnecessary vibrations and resonances within the earphone housing, minimizing external noise and interference. As a result, each note is delivered with extreme precision and clarity.

Aluminum Alloy: While aluminum alloy is lightweight, its rigidity is slightly lower compared to titanium, making it more prone to unwanted resonance, which can mildly affect the stability and detail of the sound quality.

2. Acoustic Properties:
Titanium Alloy: Titanium boasts excellent acoustic damping properties that reduce distortion, resulting in cleaner and purer sound. Particularly in low-frequency control, titanium provides deeper, more stable bass while refining high frequencies, avoiding the potential "noise" commonly found in aluminum-based designs.

Aluminum Alloy: Aluminum alloy, with its higher resonance frequency, can introduce slight distortion or "ringing," especially when playing complex music. The bass may appear looser, and the high frequencies may sound softer in comparison.
3. Sound Performance:
Titanium’s high strength and low resonance characteristics have significantly enhanced the MP145 PRO’s sound quality. While the MP145 aluminum alloy version was already a perfect upgrade, the MP145 PRO Titanium Edition takes it to the next level, bringing flagship-level sound. The bass is tighter and more powerful, the mids are clearer and more detailed, and the highs are more vibrant and refined. The overall soundstage is wider and more precise, with enhanced depth and clarity. The titanium housing not only improves durability but also ensures that the sound quality remains stable, resistant to external interference.

Upgraded Tuning, Evolved Sound

The MP145 PRO not only features a material breakthrough but also a complete overhaul of the sound tuning. With careful audio calibration, the MP145 PRO delivers more refined high frequencies and a more layered low-frequency response, making every musical detail shine. Whether it’s the clarity in the highs or the impact of the lows, the MP145 PRO brings a more dynamic and immersive listening experience.

● High-Frequency Performance: The use of titanium alloy makes the high frequencies more transparent and bright, with a smoother, more extended treble. Whether it’s crisp percussion or delicate vocals, the MP145 PRO delivers a more realistic and natural sound. The high frequencies are more refined and expansive, bringing the music to life with richer detail and a greater sense of space.
● Mid: Titanium's high rigidity and low resonance properties make the midrange more refined, compact, and powerful. Vocals are clearer and more detailed, with significantly improved separation and layering of instruments. The midrange brings out the precise positioning of each sound, making vocals, guitars, and strings feel more natural and realistic.
● Low-Frequency Performance: The rigidity and stability brought by titanium alloy make the low frequencies more tight and powerful, with a deeper and more solid sound. In intense genres like rock or electronic music, the bass becomes more impactful yet remains controlled, fully showcasing titanium’s advantage in low-frequency management. The bass is cleaner and more precise, especially in complex tracks, where it reacts faster without any muddiness or distortion.
● Separation and Soundstage: The MP145 PRO Titanium Edition features a wider soundstage and exceptionally high separation. Thanks to titanium’s precise engineering and optimized tuning, the soundstage offers more accurate imaging, and the depth and spatiality of the sound are significantly enhanced, providing a more immersive listening experience. Every note is placed with more precision, allowing for clearer distinction between even the smallest or most complex musical elements. The layering of sound is greatly improved, offering a more immersive listening experience with a soundstage that feels more natural and true-to-life.

The MP145 PRO Titanium Limited Edition earphones represent a bold innovation in both sound quality and craftsmanship by HIDIZS. With a titanium alloy housing upgrade and precise audio tuning, the MP145 PRO delivers a deeper, purer, and more refined sound experience. Whether it’s the bass impact, the brilliance of the highs, or the overall soundstage performance, the MP145 PRO brings you a higher level of musical enjoyment. As a limited-edition product, it also embodies HIDIZS’s commitment to ocean conservation.

The MP145 PRO is the ideal choice for audiophiles, collectors, and those who are passionate about ocean conservation. It’s ready to become the shining star of your audio collection.

The MP145 PRO is designed to sound great straight out of the box — even without a fancy DAC.

With 32Ω low impedance and 104dB high sensitivity, you can plug them into your smartphone, tablet, or laptop — no extra gear required. You will still enjoy rich, clear, and immersive sound.

But if you ever want to take things to the next level, pairing it with a dongle DAC or HiFi player will unlock even more detail, depth, and richer dynamics. Totally optional — but a fun upgrade if you’re curious! We highly recommend pairing it with a dongle DAC or dedicated HiFi music player.

Good news? HIDIZS has you covered!

You can bundle the MP145 PRO with the S8 Pro Robin, S9 Pro Plus, or AP80 PRO MAX at an exclusive launch deal on Kickstarter.

You'll be surprised how much more you can "hear" — deeper bass, clearer highs, and a wider soundstage.

The MP145 PRO is designed for everyone, even first-time audiophiles!

* Plug-and-play friendly
* Comfortable to wear
* Tunable to personal taste
* Future-proof with 2-pin cable design

With 32Ω low impedance and 104dB sensitivity, it works great straight from your smartphone, tablet, or laptop — no extra gear required.

But if you want to unlock even more detail, richer dynamics, and that true HiFi experience, we highly recommend pairing it with a dongle DAC or dedicated HiFi music player.

Good news? HIDIZS has you covered!
You can bundle the MP145 PRO with the S8 Pro Robin, S9 Pro Plus, or AP80 PRO MAX at an exclusive launch deal on Kickstarter.

You'll be surprised how much more you can "hear" — deeper bass, clearer highs, and a wider soundstage.

Easy to use, hard to put down. Perfect for any level of listener.

Yes. The MP145 PRO’s transparent sound, balanced tuning, and low distortion (<0.05%) provide clear, accurate reproduction across the entire frequency spectrum.

The 14.5mm Ultra-Precision Nano-Grade planar diaphragm and upgraded magnetic circuit ensure fast transient response and precise detail, making it easy to pick up subtle instrument layers, vocal nuances, and fine production details—ideal for monitoring and mixing tasks.

Yes. The MP145 PRO’s fast planar response, precise imaging, and wide soundstage create immersive gaming soundscapes, helping you catch positional cues, subtle audio details, and fully experience in-game environments.

The included cable is audio-focused and does not have inline controls or a microphone. If mic functionality matters to you, we recommend using a cable with an inline mic or choosing another HIDIZS model designed for communication.

The MP145 PRO comes with an upgraded 6N high-purity silver-plated copper 4-core braided cable, offering higher durability, tangle-free handling, and low-resistance transmission for clearer, more detailed sound.

It also features interchangeable 3.5mm (single-ended) and 4.4mm (balanced) plugs, so you can switch between devices effortlessly.

Aluminum Alloy Version MP145 PRO IEM Includes:
1 x MP145 PRO IEMs
1 x MP145 PRO Earphone Cable
2 x Interchangeable 3.5mm SE & 4.4mm BL Plug
3 Pairs x HIDIZS Tuning Filters (High-Frequency/Balanced/Low-Frequency)
9 Pairs x Silicone Eartips (Bass/Vocal/Balanced)
3 Pairs x Exclusive 'Sea Anemone' High-end Liquid Silicone Eartips (S/M/L)
1 x HIDIZS x WDC Badge Pin
1 x Premium Leather Case
1 x User Manual
1 x Warranty Card

Limited Titanium Alloy Special Edition Includes:
1 x MP145 PRO IEMs
1 x MP145 PRO Earphone Cable
2 x Interchangeable 3.5mm SE & 4.4mm BL Plug
3 Pairs x HIDIZS Tuning Filters (High-Frequency/Balanced/Low-Frequency)
9 Pairs x Silicone Eartips (Bass/Vocal/Balanced)
3 Pairs x Exclusive 'Sea Anemone' High-end Liquid Silicone Eartips (S/M/L)
1 x HIDIZS x WDC Badge Pin
1 x Premium Leather Case
1 x User Manual
1 x Warranty Card
1 x Global Unique Number
1 x 'HIDIZS' Postcard Collection

The MP145 PRO is not waterproof. While its sound transmission channels are protected by a sponge to block dust, it does not offer water resistance. Therefore, please avoid dropping the earphones in water, as this could damage the internal electronic components.

Although MP145 PRO has undergone standard "burn-in" treatment before leaving the factory, burn-in is still necessary. The recommended burn-in time is at least 100 hours. Based on the uninterrupted burn-in time, record and experience the changes in different burn-in periods. You will find that the feeling and experience of each burn-in are very different. The more you burn in, the more you can appreciate the charm of MP145 PRO.

No, the MP145 PRO does not feature Active Noise Cancellation. Instead, it uses noise-isolating ear tips for passive noise reduction and sound isolation. Its 0.78mm 2-pin interchangeable cable and over-ear wearing design provide a secure fit, reducing the stethoscope effect caused by cable movement.

Note: The stethoscope effect refers to noise transmitted through earphone cables from friction or contact with external objects.

The MP145 PRO’s internal design also features hidden ventilation ports inspired by whale tail fins. These ports optimize airflow, enhancing sound transparency and balance while improving bass and high-frequency performance.

The MP145 PRO features a semi-open design with professionally designed ventilation ports, so there won't be any issues with sound leakage.

WDC is a global public welfare environmental protection organization, the full name is Whales and Dolphins Conservation, with branches in many countries around the world. WDC's mission is to protect the safety and freedom of whales and dolphins, and is committed to protecting the marine environment and promoting and popularizing the important position of whales and dolphins in the marine ecology to the public.

Hidizs has partnered with WDC since MP143 Salt, continuing through MP145 and now MP145 PRO, supporting ocean conservation as a long-term commitment, not a one-off effort.

In 2026, Hidizs contributed through WhaleJam Benefit Concerts, a music-driven initiative connecting musicians, music lovers, and nature enthusiasts to raise awareness and support the critically endangered North Atlantic right whale. It’s our way of combining music, passion, and conservation in a meaningful, lasting way.

Learn More:
WDC North America
Whale and Dolphin Conservation (WDC)

Facebook: Whale and Dolphin Conservation
Instagram: whales_org
Twitter / X: whales_org
Tiktok: whales_org
YouTube: Whale and Dolphin Conservation North America
@whales_org

MP145 PRO has a 1-year warranty for manufacturing defects. That is, we will cover any factory defects that might affect the proper functionality of your purchase. However, we don't cover any damage that may occur from normal wear and tear. We can send a replacement if your product is defective upon delivery, but this may require you to send the defective unit back to us.