Field Test · Studio Gear Review
Audeze MM-100
Technical assessment of Audeze’s MM-100 planar magnetic open-back headphones
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Spec Sheet
- Circumaural
- Open
- Magnetostatic
- Frequency range: 20 Hz – 25,000 Hz
- Impedance: 18 ohm
- Max. sound pressure level: 120 dB
- Audeze 90 mm planar magnetic driver
- Leather ear pads with gel core
- Single-cable routing (left or right connection option)
- Cable interchangeable
- Housing made of magnesium, aluminium and steel
- Contents of delivery: MM-100 headphones, braided cable, 6.3 mm to 3.5 mm adapter, soft bag, certificate of authenticity and warranty cards
Studio Log
| Available since | December 2023 |
|---|---|
| Item number | 565054 |
| Sales Unit | 1 piece(s) |
| Design | Over-Ear |
| System | Open |
| Impedance | 18 Ohms |
| Frequency range | 20 Hz – 25000 Hz |
| Adaptor | No |
| Replaceable Cable | Yes |
| Colour | Black/Gray |
| Max. SPL | 120 dB |
| Type Of Connector | Jack(stereo) |
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Customer Review Summary
[META]Detailed review of the Audeze MM-100, exploring sound quality, build, comfort, and usability of this £368 planar magnetic headphone.Introduction
The Audeze MM-100 is a planar magnetic open-back headphone released in December 2023, retailing at £368. Designed for over-ear, circumaural listening, it targets audiophiles and professionals seeking clarity and natural sound in an open design. Featuring an 18-ohm impedance and a wide frequency range of 20 Hz to 25,000 Hz, the MM-100 aims to offer detailed audio reproduction with a maximum sound pressure level of 120 dB.
Build Quality and Design
The MM-100 impresses with a robust construction using magnesium, aluminium, and steel that ensures durability while maintaining a premium aesthetic. The ear pads, crafted from leather with a gel core, contribute to user comfort, cushioning the ears suitably during extended listening sessions. However, the cups and pads are fixed with adhesive, complicating replacement and professional maintenance.
The headphones use a circumaural, open-back configuration which promotes natural soundstage expansion but offers less isolation from external noise compared to closed designs. The single cable is interchangeable and can be connected on either the left or right side, connected by a stereo jack. A braided cable and a 6.3 mm to 3.5 mm adapter come included, although some users note the absence of certain adapters as a minor inconvenience.
Sound Signature and Performance
The planar magnetic driver measures 90 mm and produces an analytical yet musical sound profile. The MM-100 is reported to have a natural and clear audio representation commonly associated with magnetostatic headphones. Bass reproduction is firm and controlled without overshadowing the tonal balance, while midrange frequencies present a finely detailed, slightly emphasised clarity, which benefits vocals and instruments alike.
- Bass: Clear and impactful but not overly pronounced, providing a clean foundation without boominess.
- Midrange: Particularly strong; vocal and instrumental details come through with precision and warmth.
- Treble: Detailed and crisp, offering brightness without harshness or sibilance.
Compared to other headphones around the £500 mark, the MM-100’s soundstage is modest, not quite reaching the expansive width of certain HiFiMan models but aligning more with studio monitor-like imaging. This contributes to a listening experience suitable for mixing and digital piano practice as much as for immersive music enjoyment.
Comfort and Ergonomics
Comfort is generally good, with leather ear pads providing mild breathability, though some users report warmth after longer listening periods, especially during warmer conditions. The headband, also leather-covered, offers firm support but the adjustment mechanism uses screws rather than a more flexible slider system. Once set, this yields a secure fit but lacks ease for frequent size changes.
The headphones are noticeably weighty, which may induce fatigue in sensitive users. Despite this, most report the MM-100 remains comfortable for hours of continuous use without significant pressure points.
Accessories and Extras
The package includes the MM-100 headphones, a high-quality braided cable, a 6.3 mm to 3.5 mm adapter, a soft carrying bag, and official warranty and authenticity cards. Notably, there is no included adaptor for 3.5 mm to 6.3 mm conversion, though compatible Audeze adapters are available separately at added cost. The lack of removable ear pads and limited cable options slightly restrict user customisation and maintenance possibilities.
Comparisons and User Impressions
Users familiar with headphones such as the Beyerdynamics DT880, Sennheiser HD600, HiFiMan Sundara, and more premium Audeze models note that the MM-100 holds its own, particularly in build quality and midrange performance. Some find the bass less deep than dynamic driver counterparts, observing a deliberate emphasis on upper midrange frequencies possibly to emulate studio monitors like the Yamaha NS10.
For critical mixing and mastering, some recommend models offering more linear frequency response or wider soundstage, but for those seeking detailed, analytical listening, especially for digital instrument practice and casual music appreciation, the Audeze MM-100 provides excellent value.
Limitations
- The fixed adhesive ear pads complicate replacement and reduce long-term usability
- Weight and screw-based headband adjustment may reduce comfort and convenience for some
- Bass extension, while clean, is less pronounced compared with some competing headphones
- Missing adapters may require additional purchases
Conclusion
The Audeze MM-100 offers a finely crafted planar magnetic experience prioritising clarity and neutrality within an open-back design. Its robust construction, excellent midrange reproduction and natural treble create a dependable headphone for audio professionals and enthusiasts alike. Minor ergonomic and accessory limitations do not detract significantly from its overall performance at this price point. It is a commendable choice for anyone interested in a reference-quality open headphone with clear analytical sound and strong build quality.
