Audeze has spent the past few years proving that planar magnetic headphones are not just for audiophiles listening alone in dark rooms, questioning cable choices. The California brand made two very smart pivots with its driver technology: gaming headsets and studio headphones. The Maxwell became one of the most successful premium wireless gaming headsets on the market, and the newer Maxwell 2 has already pushed that platform further with SLAM technology, upgraded wireless performance, and stronger spatial/bass performance.
That gaming momentum was significant enough that Sony Interactive Entertainment acquired Audeze in 2023 to strengthen its PlayStation audio ecosystem.
The studio side has been just as important. Audeze’s Manny Marroquin Signature Series gave the company a credible way into the professional headphone market, taking aim at established studio staples from Beyerdynamic, Sony, and Sennheiser. The MM-500 set the tone, the more affordable MM-100 expanded the audience, and now the new $1,799 Audeze MM-520 arrives as the next step in that lineup. Audeze says the MM-520 builds on the MM-500 foundation while adding its SLAM technology, designed to improve bass accuracy, low-frequency impact, and spatial detail without giving up the midrange neutrality that made the MM-500 useful as a mixing tool.
Developed with 18-time Grammy-winning mix engineer Manny Marroquin, the MM-520 is being positioned as a professional studio headphone for creators who need mixes to translate beyond the control room. That is the entire fight here. Audeze is not just chasing headphone collectors with another planar trophy piece.
It is trying to make its studio models legitimate daily tools for engineers, producers, and creators who have spent decades trusting German and Japanese studio cans. The MM-520 will have to earn that space, but based on the MM-Series track record, Audeze is no longer knocking politely. It has a badge, a warrant, and a very expensive pair of earcups.
“The MM-520 represents the latest entry in our mission to provide creators and professionals with the ultimate monitoring tool” stated Sankar Thiagasamudram, Audeze CEO. “By adding SLAM™ technology to Manny’s signature series, we’ve created a headphone that delivers even more truth in the low-end while maintaining the signature clarity Audeze is known for“, he added.
Audeze MM-520: SLAM Technology, 90mm Planar Drivers, and Studio-Focused Design
The Audeze MM-520 builds on the MM-Series platform with the addition of Symmetric Linear Acoustic Modulator, or SLAM, technology. Audeze says SLAM is designed to improve bass performance and spatial imaging by managing airflow and pressure inside the earcup. The goal is stronger low-frequency definition and better spatial clarity without moving away from the more neutral midrange balance that defined the MM-500.
The MM-520 uses 90mm planar magnetic drivers with Ultra-Thin Uniforce diaphragms and Fazor phase management, technologies Audeze has used across its planar magnetic headphones to reduce distortion and improve phase behavior. For studio users, the focus is accuracy, low distortion, and consistency during mixing, mastering, and content creation. Audeze also claims the headphone’s high sensitivity and low impedance allow it to be driven from consoles, audio interfaces, and laptops, which should make it more practical for both studio and mobile work.
Comfort has also been addressed with upgraded memory foam earpads designed for longer sessions. The earpads attach magnetically, making replacement easier over time. For a studio headphone, that matters. Pads wear out, sessions run long, and nobody wants a maintenance project between takes.
Why the Audeze MM-500 Became a Serious Studio Headphone Contender
The original Audeze MM-500 was not just a smaller variation of the LCD Series with Manny Marroquin’s name attached. It was designed as a professional studio headphone, with a more durable aluminum and steel build, a hard travel case, and tuning aimed at mixing and mastering rather than audiophile system matching. In our review, we found that the MM-500 belonged in the same conversation as the LCD-X ($1,199), LCD-MX4 ($2,995), and even the flagship LCD-5, but with a very different purpose.
The MM-500 used Audeze’s 90mm planar magnetic driver with Fluxor magnets and a Uniforce diaphragm, and its 18-ohm impedance and 100dB/mW sensitivity made it easier to drive than some of the company’s more demanding models. Sonically, it delivered excellent midrange clarity, strong resolution, very good imaging, and a more neutral balance than the LCD-X, although its bass was more controlled than visceral. We also noted that it responded well to EQ, which matters for studio users making small mix decisions.
The tradeoffs were real. The MM-500 could sound somewhat thinner than Audeze’s higher-end models, the smaller pad opening could bother listeners with larger ears, and it performed best with a capable high-current amplifier rather than modest portable gear. Still, the conclusion was very positive: for users who needed a serious mastering headphone with excellent build quality, strong accuracy, and studio-focused tuning, the MM-500 was one of the best values in Audeze’s lineup.
Specifications Compared
| MM-500 | MM-520 | |
| MSRP | $1,699 | $1,799 |
| Style | Over-ear, circumaural, open-back | Over-ear, circumaural, open-back |
| Transducer Type | Planar magnetic | Planar magnetic |
| Magnetic Structure: | Fluxor magnet array | Fluxor magnet array |
| Magnet Type | Neodymium N50 | Neodymium N50 |
| Diaphragm Type | Ultra-Thin Uniforce | Ultra-Thin Uniforce |
| Transducer Size | 90 mm | 90 mm |
| Acoustic Management | – | SLAM |
| Maximum SPL | >130 dB | >130 dB |
| Frequency Response | 5Hz to 50kHz | 5Hz to 50kHz |
| THD | <0.1% @ 100 dB SPL, 1kHz | <0.1% @ 100 dB SPL, 1kHz |
| Sensitivity | 100dB/1mW at Drum Reference Point | 102dB/1mW at Drum Reference Point |
| Impedance | 18 ohms | 18 ohms |
| Maximum Power Handling | 5W RMS | 5W RMS |
| Minimum Recommended Power | >100mW | >100mW |
| Weight | 495 g | 555 g |
The Bottom Line
The Audeze MM-520 is a focused evolution of the MM-500, built for studio users rather than casual listening. Its most important upgrade is SLAM technology, which Audeze says improves bass performance and spatial imaging while preserving the MM-Series’ neutral midrange balance.
With 18-ohm impedance and 102dB sensitivity, the MM-520 should be easier to drive from interfaces, consoles, and laptops than many planar designs. However, the 100mW minimum power recommendation still suggests better gear will matter.
Potential buyers should note the 555 gram weight and open-back design. This is not ideal for tracking near microphones, travel, or noisy rooms. It is for mixing, mastering, production, and creators who want Audeze planar accuracy with more low-end insight and spatial detail than the MM-500.
Where to buy: $1,799 at Audeze
Related Reading:
