Sony has long been a major player in the consumer audio market, offering a wide range of models like the popular WH-1000X series. However, until recently, their only studio-focused product was the iconic yet decades-old MDR-7506. With the MDR-MV1, Sony enters the highly competitive studio open-back segment, which is already saturated with numerous phenomenal choices. Can Sony deliver something that others can’t? Or at least provide a compelling alternative to the old market favorites?

Pros
  • Extremely lightweight
  • Amazing sub-bass extension
  • Unparalleled unit-to-unit consistency

Pros list with SoundID Reference calibration

  • Full neutrality across the frequency spectrum
Cons
  • Hyped sound for open backs
Use cases Best use case:
Mixing
Mastering
Production
Recreational listening
Tech specs Type
Open back, Over-ear
Impedance
24 Ohm
Connector
6.3 mm jack
Adapter
6.3 mm to 3.5 mm mini-cable
Weight
223 g (without cable)
Require headphone amp
No
Cable
2.5 m straight
Headphone amp

MDR-MV1 has very low impedance for pro headphones, which, paired with rather average sensitivity, means that these Sonys can be used with a wide variety of devices without worrying about not achieving workable volume. They will perform well in setups with a dedicated audio interface or headphone amp, as well as mobile setups. Even when used with a laptop’s integrated sound card and SoundID Reference calibration enabled, these headphones are capable of reaching dangerously high volume.

Sony MDR-MV1 headphones on wooden desk with studio mixing equipment background
Sony MDR-MV1 studio headphones in professional audio production environment, demonstrating the ultra-lightweight design and open-back architecture well-suited for mixing and mastering applications despite their unique “smiley face” frequency response.
Build quality

The first thing that stands out upon picking the unit up is how impressively lightweight they are despite the size. At 223 grams, these are the second lightest studio over-ear open-backs that we’ve encountered, with only Audio-Technica’s ATH-R70x beating them by a mere 13 grams. Notably, Sony has reached this weight without big compromises in durability, and using aluminum alloy for the earcups. The rest of the build is mostly plastic as expected. Overall, the construction seems more sturdy and durable than ATH-R70x despite weighing almost the same.

The memory-foam earpads are covered with an alcantara-like material and are very high quality. Less positive is that the faux leather-clad headband cushion is not available from Sony as a spare part so if it comes to that, you’ll need to resort to a non-original part from a third-party manufacturer that may alter the frequency response. However, the earpads usually wear out many times faster than the headband, and replacement pads are available from Sony dealers.

Overall, given the weight, price, and all-around great performance, the build is very well considered. The only minor criticism from a durability perspective is the material choice for the yokes connecting the headband to the earcups. It’d be more reassuring to see metal parts used there, especially given the fact that no original transport case is included nor offered aftermarket by Sony.

Sony MDR-MV1 headphones side view showing mesh grille and blue accents in studio setup
Sony MDR-MV1 headphones displaying the distinctive mesh grille design and blue accent details in a professional studio environment, showcasing the open-back architecture that delivers surprising sub-bass extension.
Sound
Sony MDR-MV1 frequency response chart showing smiley face curve with bass and treble boost
Sony MDR-MV1 acoustic frequency response measurement revealing the distinctive “smiley face” curve with increased bass and treble response typically associated with closed-back headphones, making these the most fun-sounding pro open-backs.

Open-back design in headphones is typically associated with relatively neutral low to mid frequency response, less pronounced resonances in the higher part of the spectrum, and perhaps most notably, a weak sub-bass extension. MDR-MV1’s break the mold and offer a frequency response curve typically associated with closed back headphones—a classic “smiley face” curve with increased bass and treble, but attenuated high-mids. This makes the MDR-MV1 perhaps the most fun-sounding pro open-backs. Be careful, though, as such a sound signature may color your monitoring in a complementary way, thus clouding your judgment and leading to thin-sounding mixes. With that said, it’s far from the “smiliest” units, and amplitude-wise, the shape does not stray away from neutral further than 6dB. 

Once calibrated, the Sony MDR-MV1 becomes a serious and analytical monitoring tool. Notably, this marks the first time our calibration has applied a significant bass cut to an open-back headphone profile!

Channel balance

Sony has knocked it out of the park, delivering the highest manufacturing consistency we’ve seen. There’s virtually no channel imbalance to worry about. MDR-MV1s aren’t cheap at around 400 Euros, but when it comes to channel consistency, these Sonys beat headphones that cost 10 times as much.

Comfort

Most of the testers found MDR-MV1 very comfortable and did not report any severe issues. The sizeable earpads will accommodate even quite large ears without touching them, thus enabling long sessions. The comfort is great and receives a high mark, however, it could be further improved by redesigning the headband. Sony MDR-MV1 doesn’t do as great a job distributing the pressure across the whole head as HD 490 Pro, but instead relies more on the top of the headband to carry the weight. This may lead to a slight pressure point forming right on top of the skull, making them feel heavier than HD 490 Pro when worn, despite the actual weight being less. Perhaps a two-part headband cushion, like on the Sennheiser, or an altered cushion volume distribution could elevate the comfort to the very top of the class.

Value

Sony MDR-MV1 is priced similarly to perhaps its most direct competitor, the Sennheiser HD 490 Pro. At the time of writing, Sony at €400 is around €40 more expensive than Sennheiser. While it’s considerably pricier than the established classics such as Beyerdynamic DT 880 Pro or Sennheiser HD 600, it offers better build, lower weight, and sub-bass extension unlike any other open-back set.

Sony MDR-MV1 headphones folded flat showing lightweight design with blue accents on studio desk
Sony MDR-MV1 headphones in folded configuration, demonstrating the ultra-lightweight 223-gram design and rotating ear cups that contribute to the great wearing comfort.
Total Harmonic Distortion
Sony MDR-MV1 THD harmonic distortion chart showing clean performance at 80 dB SPL
Sony MDR-MV1 Total Harmonic Distortion (THD) measurement at 80 dB SPL demonstrating clean performance throughout the spectrum, with the notable spike toward 20Hz being inaudible and causing no perceivable distortion concerns.

While the spike towards 20Hz looks noteworthy on the graph, it’s not audible by ear and shouldn’t cause concern. There’s no perceivable distortion throughout the spectrum.

How accurate and consistent is the correction effect among different listeners?

In this regard, Sony MDR-MV1 is not among the top performers, with Neumann NDH 30, Sennheiser HD 490 Pro, Sennheiser HD 650, and Audio-Technica ATH-R70x delivering more consistent frequency response on average between different listeners. With that said, it still beats almost every closed-back model and performs rather well without unpleasant surprises in our tests. A few dB deviation is expected in the high-mid range, as with almost any other model besides the top performers outlined above.

How much do they differ pair to pair in terms of frequency response?

What MDR-MV1 lacks in listener-to-listener frequency response consistency, it makes up for with exceptional manufacturing quality. Sony has done nothing short of an amazing job enforcing consistency in driver frequency response! Both pair-to-pair and left-to-right channel consistency is tighter than any other model we’ve ever measured. In terms of human perception, the three measured units can be considered identical. That also means that the SoundID Reference model average calibration profile will deliver exceptional accuracy.

Rating

7.6 / 9.1 / 9.1

Sound rating is a weighted average of Frequency Response, Adaptiveness, Harmonic Distortion and Channel Balance scores, with Frequency Response and Adaptiveness having the greatest influence.

6 / 10 / 10

The flatter the frequency response – the higher the score. When evaluating the frequency response score with the Average calibration profile, the pair to pair consistency of the given model is taken into account – if we have measured a considerable frequency response inconsistency among multiple pairs of the given model, the score drops, as the profile loses accuracy. Individual calibration will grant perfectly flat frequency response.

8

Adaptiveness shows how capable these headphones are at delivering the same perceived frequency response to any listener. Headphones with high score will sound nearly identical to everyone.

8

Harmonic distortion – the lower the Total Harmonic Distortion (THD) figure, the higher the score. Headphones with prominent 3rd harmonic distortion above 100 Hz will score lower.

9.9 / 10

Channel balance – the closer to identical the frequency response of both channels, the higher the score. Individual calibration delivers perfect channel balance.

8.3

Comfort – shows if headphones can be used for long listening sessions comfortably. Every model is tested by at least a few individuals.

9

Build – evaluates how well the headphones are put together, the materials used and indicates the expected longevity. Easily replaceable (and easily available) parts will boost the score. We don’t do any stress tests and very few models are used for longer than a couple of days, so this is a fairly subjective score.

7

Value – indicates the price-performance ratio of the given headphones and how they stack up against the competition. High score means that you won’t find more neutral sounding alternatives for the price.

Out of the box
With SoundID Reference calibration

Conclusion

Sony MDR-MV1 is an open-back set like no other—light on scales, heavy on bass. The frequency response follows the smiley face curve typically associated with consumer headphones, making them sound more hyped than their open-back counterparts, especially in the bass department. While they sound exciting, for mixing and mastering, a more neutral and analytical response is beneficial, and that can be achieved with SoundID Reference. When calibrated, they’re a revealing, high-precision monitoring tool. When not, they offer a fun sound signature that will be enjoyed by many for casual listening.

Final Rating

9
With SoundID Reference
Calibration Enabled
7.7
Without SoundID Reference
Calibration

Remove coloration from your headphones
with SoundID Reference from Sonarworks

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