If you want reliable noise isolation and a collapsible build for long shifts, choose Shure SRH145; if you need an expansive soundstage and premium comfort for critical listening at home, choose Moondrop Old Fashioned 40mm.
• Shure SRH145: Delivers strong external noise isolation with a closed-back design and ultra-lightweight portability, but sacrifices the wide open soundstage of open-back models. Best for professionals on the move who need to block out distractions.
• Moondrop Old Fashioned 40mm: Offers a massive frequency range and detailed audio clarity with its open-back architecture, but lets sound leak in and out, making it unsuitable for noisy environments. Best for audiophiles seeking studio-grade fidelity in quiet spaces.
• The Verdict: If your priority is blocking the world while working, go Shure. If your priority is hearing every nuance of a recording, go Moondrop.
The Shure SRH145 is engineered for people who live their lives in transit or in bustling environments where focus is non-negotiable. Its closed-back design is not just a stylistic choice; it is a functional necessity that provides significant sound isolation. When you are wearing these headphones, the physics of the enclosure keeps the music inside and the office chatter outside. This makes them an exceptional tool for anyone needing to concentrate without the aid of active electronic noise cancellation. The impedance sits at 34 ohms, which pairs easily with standard portable players and devices without requiring a dedicated amplifier, ensuring you get consistent performance whether you are at a desk or commuting.
Comfort is another pillar of this design, specifically tailored for extended wear. The unit weighs only 5.76 ounces, a figure that translates to almost nothing on your head after hours of use. The ear cups are adjustable, and the padded headband ensures a secure fit that does not pinch. For nurses who spend twelve-hour shifts on their feet, the ability to rest these headphones around the neck or tuck them into a bag thanks to the collapsible frame is a genuine logistical advantage. You are not carrying dead weight; you are carrying a piece of equipment designed to disappear when not in use.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-31 · 7 min read · Independent comparison
However, this product is not for everyone. If you are looking for a headphone that creates a virtual surround sound effect where instruments float around your head, the closed-back nature of the SRH145 will feel too intimate and enclosed. The frequency response tops out at 17.5kHz, which covers the vast majority of human hearing but lacks the ultra-high-frequency extension found in more specialized gear. You should buy this if you value practicality, durability, and isolation over absolute sonic perfection. You should skip it if you plan to listen in a shared living space where sound leakage is a concern, or if you require a headphone that can reproduce the very highest frequencies for mastering purposes.
The Moondrop Old Fashioned 40mm takes a completely different approach, prioritizing acoustic purity and listener immersion above all else. By utilizing an open-back design, this headphone abandons the attempt to seal sound inside your ears. Instead, it allows air to flow freely through the earcups, creating a natural, airy soundstage that many listeners describe as "live." This is achieved through a 40mm large dynamic driver with a high damping coefficient diaphragm, optimized specifically for this open architecture. The result is a frequency response that stretches from 20Hz all the way to 32kHz, capturing details that other headphones simply cannot reproduce. If you are an audiophile who wants to hear the breath of a vocalist or the subtle decay of a cymbal, this is the machine built for that task.
Build quality here leans towards the classic and the modular. The earcups feature a leather or high-quality plastic finish, and the entire unit is constructed with a telescopic headband and multi-axis swivel hinges. Unlike the Shure, which collapses for storage, the Moondrop features a detachable cable system using a 0.78mm 2-pin interface. This modularity means you can upgrade cables later or replace parts if they wear out, extending the life of the device significantly. The sensitivity of 109dB/Vrms suggests it is highly efficient and easy to drive, yet the low total harmonic distortion (THD) of 0.2% indicates a clean signal path. This is a device for someone who treats their audio setup as a serious hobby.
The trade-off for this sonic freedom is environmental isolation. Because the back of the earcups is open, sound leaks out loudly, meaning you will disturb others if you play music at any moderate volume in a shared room. Conversely, ambient noise enters your ears unfiltered, so you will hear the hum of a computer fan or a neighbor talking. These headphones are strictly for quiet rooms. They are ideal for a dedicated listening corner or a home studio, but they fail completely in a hospital corridor or a busy coffee shop. If you are a nurse looking for a gaming headset for nurses that works during a shift, this is not the tool for the job. It is a precision instrument for private enjoyment.
• Best for noise isolation → Shure SRH145. The closed-back enclosure physically blocks external noise, making it the clear winner for any environment where silence is required.
• Best for frequency range → Moondrop Old Fashioned 40mm. With a top end reaching 32kHz compared to the Shure's 17.5kHz, the Moondrop captures a wider spectrum of audio data.
• Best for portability → Shure SRH145. At 5.76 ounces with a collapsible design, it fits easily into pockets and bags, whereas the Moondrop is less compact and lacks folding mechanisms.
• Best for soundstage width → Moondrop Old Fashioned 40mm. The open-back design creates a spacious, natural listening experience that the sealed Shure cannot replicate.
• Best for durability and repairability → Moondrop Old Fashioned 40mm. The modular 2-pin detachable cable allows for future upgrades and easier maintenance than fixed-cable alternatives.
• Best for battery-free simplicity → Both. Both units are wired with a 3.5mm jack, eliminating the need for charging and ensuring you never run out of power mid-listen.
• Best for professional medical use → Shure SRH145. The combination of isolation, lightweight design, and rugged build makes it far more suitable for the demands of healthcare work.
• Best for home studio monitoring → Moondrop Old Fashioned 40mm. The accurate frequency response and low distortion make it a superior choice for critical listening in a controlled acoustic environment.
After weighing the specifications and the intended use cases, I would buy the Shure SRH145 for my own daily needs, particularly if I were working in a demanding field like nursing. The ability to isolate sound while remaining comfortable for hours is a feature that outweighs the slight limitation in high-frequency extension. In my opinion, the collapsible design and lightweight build make it the most practical choice for someone who moves between different environments throughout the day. While the Moondrop offers incredible audio fidelity, its open-back nature limits it to a single, quiet location, which restricts its utility for general daily use. If you are a nurse looking for the best headphones for nurses to help you focus during a chaotic shift, the Shure is the smarter investment.
Yes, the Shure SRH145 is excellent for this because its closed-back design provides physical sound isolation, whereas the Moondrop will let background noise in due to its open-back construction.
No, both the Shure SRH145 and the Moondrop Old Fashioned 40mm have impedances of 34 and 32 ohms respectively, making them easy to drive directly from standard phones or computers without extra amplification.
Yes, the Moondrop Old Fashioned 40mm features a modular 0.78mm 2-pin detachable cable system, allowing you to swap out the wire or upgrade it later, unlike many fixed-cable competitors.
The Shure SRH145 is lighter at 5.76 ounces and features a collapsible design, making it significantly more portable than the Moondrop, which is not designed to fold down for travel.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.