audio-sound @ hatena

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(Chi-fi IEM Review) Open Audio Mercury: Excellent analog-type listening earphones that nostalgically portray music with rich harmonics

Open Audio Mercury

 

 

Disclaimer

  • This review is written based on samples lent by Open Audio to give readers an honest quality review.
  • No remuneration or compensation, such as a manuscript fee, has been received for publishing this, and it is an honest evaluation based on measurement data from personal testing and personal opinion.
  • Please read the privacy policy of this website.

 

  • People who value gravitas
  • People who value glitz and glamour
  • People who want to hear erotic vocals and guitars
  • People who like analog sound
  • People who like the sound of tube amplifiers
  • People who are looking for well-balanced earphones

 

Overview of Open Audio Mercury

This review will give an overview of Open Audio Mercury. A complete review of this product can be found here.

 

audio-sound Score

  • Total Score: 9.3 / 10.0
  • Package: 7.5 / 10.0
  • Build quality: 8.5 / 10.0
  • Fitment: 9.0 / 10.0
  • High range: 9.5 / 10.0
  • Mid range: 10.0 / 10.0
  • Low range: 10.0 / 10.0
  • Less distortion: 7.5 / 10.0
  • Cost Performance Bonus: 12.5/10.0

 

  • Want to see the score ranking? Click here!

 

Basic Specifications
  • Frequency response: 5Hz to 40kHz
  • Impedance: 8Ω
  • Sensitivity: 110dB
  • Cable connector: 0.78mm 2pin

 

Features of Open Audio Mercury

  • 5-driver hybrid configuration
  • 9.2mm PU soft-suspended dynamic driver
  • 4 balanced armature-type drivers
  • Comfortable fit
  • 3-channel, 3-frequency split

 

www.youtube.com

 

Authentic high-resolution experience with hybrid drivers

The Open Audio Mercury features a five-driver hybrid setup with four 9.2mm PU dynamic drivers and four custom-tuned balanced armature drivers per side. These drivers are arranged in a 3-way frequency crossover that generates low frequencies with the dynamic drivers, mid frequencies with the dual BA units, and high frequencies with the dual BA units.

 

Open Audio Mercury

 

Rich and lively sound tuning

Open Audio's flagship IEM, the Mercury, is professionally tuned and tuned to reproduce a natural, lifelike sound. It reproduces extremely clear sound across a wide frequency range, with outstanding vocal quality. A professional 3-way frequency crossover ensures extremely low distortion of the output signal.

 

Open Audio Mercury

 

Innovative new design with QuickSand Technology

Open Audio has created the beautiful shell of the Mercury IEM with its innovative Quick Sand technology. Each unit undergoes a complex process that results in a unique texture and elegant finish. In addition, the shape of the cavity is adjusted based on vast amounts of earhole data to provide a comfortable and secure fit for users around the world.

 

Open Audio Mercury

 

High-quality genuine cables

Open Audio Alkaid comes bundled with a brand new, high quality cable. This cable is an 8-conductor high-purity OCC cable. This cable optimizes sound performance and ensures an authentic experience for the user.

 

Open Audio Mercury
Open Audio Mercury
Open Audio Mercury
Open Audio Mercury

 

package

The one we borrowed from the manufacturer is not the official package, so we give it a rating of 7.5.

 

The full version comes in a luxurious package. Please see the unboxing video embedded at the beginning of this article for more details.

 

Package contents
  • Open Audio Mercury
  • Eartips
  • Cleaning cloth
  • Carrying case

 

Open Audio Mercury

Open Audio Mercury
Open Audio Mercury
Open Audio Mercury
Open Audio Mercury

Open Audio Mercury

Open Audio Mercury

 

Build quality

Build quality meets price standard.

 

The faceplate is beautiful.

 

Open Audio Mercury

Open Audio Mercury
Open Audio Mercury

Open Audio Mercury

Open Audio Mercury

 

Fit

The fit is good.

 

Open Audio Mercury

Open Audio Mercury
Open Audio Mercury
Open Audio Mercury

 

Sound quality

REW Frequency Response

Open Audio Mercury

 

Sound quality description

In this review, I use the standard eartips size L and drive it with the FiiO M15.

 

Open Audio Mercury is a signature with a near-neutral sound balance and an emphasis on heavy bass.

 

Please see here for detailed reviews on sound quality.

 

Sound quality general comment
  • Original Sound Fidelity: A
  • Recommendation: S+
  • Personal preference: S+

 

There is a well-known question that plagues sound engineers today, as state-of-the-art digital audio has made sound clearer than ever before: "Why do people still prefer the degraded sound of analog audio, and even value it more highly than the high quality fidelity of digital audio?

 

Why do people still prefer the degraded sound of analog audio, and even value it more highly than the high quality fidelity of digital audio, when higher quality digital audio has been achieved?

 

The Open Audio Mercury is a good quality saturator earphone, it adjusts resolution and enriches overtones by adding distortion. It adds color to vocals and guitars, warmth to textures, and a somewhat clumsy vintage feel to music.

 

To me at least, the sound is very beautiful and moving; the Mercury's acoustic space has a nostalgia-filled musical primordiality that is quite different from faithful reproduction.

 

Open Audio Mercury

 

Sound quality features

Pros
  • Rich sound with lots of incidentals
  • Erotic vocals
  • Proper focus on midrange
  • Heavy
  • Deep bass
  • Sparkling
  • Nostalgic sound with good contour extension and a sense of human skin
  • Good balance
  • Precise texture
  • Warmth
  • Comfortable to listen to
  • Rich harmonics

 

Cons
  • Lacks clarity
  • Sense of separation is not good
  • Resolution is not high
  • Not faithful to the original sound
  • Lo-fi sound
  • Lacks three-dimensionality

 

General comment

The Open Audio Mercury earphones have a unique harmonic and lustrous sound, and while Open Audio claims that the Mercury is tuned for beautiful female vocals, anyone listening to the Mercury will feel the eroticism of its unique, analog-inspired vocal expression. For listeners who prefer music with a touch of color, it may very well be an excellent, one-of-a-kind companion.

 

OpenAudio Mercury

OpenAudio Mercury

OpenAudio Mercury

$629.00