In the fast-paced modern life, music has become an important way for people to relax and cultivate their emotions. As the carrier of music, the sound quality of headphones directly affects whether the music can be transmitted to the audience in a realistic and delicate manner. A headphone with excellent sound quality that not only restores every detail in music, but also provides users with an immersive auditory experience, making them feel as if they are in the music scene, experiencing the jumping of notes and the flow of melody. Therefore, good sound quality for headphones is not only a reflection of competitiveness, but also a respect and transmission of music art.

How is good sound quality refined?

The excellent sound quality of a pair of headphones does not come out of thin air, it contains complex acoustic principles and precise manufacturing processes behind it. From the selection of the driving unit, the design of the cavity, to the processing of audio signals and the application of noise reduction technology, every aspect affects the final sound quality performance of the headphones. So, how were these seemingly mysterious acoustic mysteries deciphered one by one and ultimately condensed into a small pair of headphones?

This question has not only sparked the interest of ordinary consumers, but even internationally renowned piano master Lang Lang is curious about it. In order to explore the path of refining high-quality headphones, Lang Lang personally entered the Cleer Acoustic Laboratory, which is known as a synonym for good sound quality.

Cleer Acoustic Laboratory, a secret base for good sound quality

In the fiercely competitive headphone market, there are few brands that can have their own acoustic laboratories. This is not only because establishing and maintaining a professional acoustic laboratory requires significant financial investment. From the planning and design of the laboratory, to the procurement and installation of high-end equipment, to the formation and operation of a professional team, every step requires huge financial and resource support. Moreover, due to the involvement of high-precision technology and complex acoustic principles, it places extremely high demands on the research and innovation capabilities of enterprises. However, in this context, Cleer has become one of the few headphone brands with its own laboratory, thanks to the strong support of its parent company Grandsun Electronics, which has been deeply involved in the field of acoustics for 27 years.

As a leading enterprise in the field of acoustics, Grandsun Electronics has accumulated rich experience and technology through 27 years of deep industry cultivation, and has also forged strong R&D and innovation capabilities, enabling it to achieve outstanding achievements in the field of smart headphones. The number of patent applications for smart headphones ranks seventh in the world, fully demonstrating its influence and competitiveness on the international acoustic stage.

Thanks to the strong support of Grandsun Electronics, Cleer has emerged in the field of acoustics at an astonishing speed since its birth in 2012. In just 12 years, Cleer has applied for over 1300 patent certificates, which is not only a powerful proof of Cleer's innovative research and development capabilities, but also a vivid portrayal of its relentless pursuit in acoustic technology exploration. Behind each patent is Cleer's story of pursuing the ultimate sound quality and witnessing the continuous unlocking of acoustic mysteries.

Every acoustic experiment is a 'ultimate challenge' to sound quality

Cleer OTA Laboratory

Among Cleer's numerous laboratories, the OTA laboratory left a deep impression on Lang Lang. This is not only the core location for Cleer to optimize wireless transmission, but also the key to ensuring stable transmission of headphone sound quality. This laboratory is dedicated to testing and optimizing the signal transmission performance of wireless headphones, ensuring the stability and high quality of music signals during wireless transmission. Lang Lang was deeply impressed by the advanced equipment and technology in this laboratory, and he felt Cleer's rigorous attitude and professional spirit in pursuing wireless headphone sound quality. Through precise debugging in OTA laboratory, Cleer earphones can maintain stable connection and high-quality sound performance in various complex environments.

Through precise OTA testing and tuning, Cleer earphones can maintain stable connections in various environments, avoiding sound quality degradation caused by unstable signals. This means that users can enjoy a consistent high-quality experience whether they are on noisy city streets or in quiet libraries.

Cleer full anechoic chamber

In addition to the OTA laboratory, the fully anechoic chamber is also an important component of the Cleer Acoustic Laboratory. This is a special room where external soundproofing treatment can minimize the interference of external noise, and the interior is covered with sound-absorbing spikes to absorb internal reflected sound, providing an almost perfect silent environment for acoustic testing of speakers/headphones. In this almost completely isolated space from external noise, Lang Lang felt an unprecedented tranquility. The soundproof room provides an ideal environment for acoustic testing of headphones, making the test results more accurate and reliable. In a fully soundproof room, Cleer's engineers can accurately measure key parameters such as frequency response, distortion, sensitivity, and background noise of headphones, ensuring that each headphone meets high standard sound quality requirements.

The impact of this anechoic chamber on sound quality is equally important. Through rigorous testing in the soundproof room, Cleer can ensure that the sound quality performance of the headphones meets the design expectations in actual use. This extreme pursuit of detail has enabled Cleer earphones to perform excellently in terms of sound clarity, balance, and dynamic range, providing users with a more authentic and engaging music experience.

In such a professional acoustic laboratory, the Cleer team continuously explores and innovates, creating numerous highly acclaimed sound quality products, among which the Cleer ARC 3 tone arc open AI earphones, known as the "master sound quality", are an outstanding case.

Master Sound Quality Cleer ARC 3 Sound Arc

Cleer ARC 3 Sound Arc is Cleer's flagship headphone launched in April this year, which quickly gained the favor of headphone enthusiasts with its unique technological innovation and excellent master sound quality experience, becoming a leader in open smart headphones.

From a hardware perspective, the Cleer ARC 3 Sound Arc earphones are equipped with the industry's top audio processing platform - the Qualcomm S5 flagship audio platform, which has passed Snapdragon Sound certification and supports aptX Lossless lossless audio encoding technology. This means that the headphones can achieve audio transmission of CD quality or higher, i.e. 24 bit/96kHz high-definition audio, allowing users to experience almost no compression or quality loss throughout the entire process from the audio source to the headphone end, and listen to sound quality close to the original recording. In addition, the addition of the latest Bluetooth 5.4 technology not only improves transmission speed, but also demonstrates excellent capabilities in connection stability and power efficiency. The bandwidth and range of Bluetooth 5.4 technology have been effectively enhanced compared to previous versions, allowing headphones to maintain low latency transmission over longer distances, providing users with clearer and more delicate sound quality performance.

At the same time, ARC 3 adopts a 16.2mm ultra large dynamic coil unit, which can provide a wider sound field and richer detail expression, especially in low-frequency response, with significant advantages. This allows the Cleer ARC 3 to perform with ease, whether listening to the delicate sound of light music or appreciating the heavy bass in electronic music, providing immersive audio enjoyment.

From a software perspective, the Cleer ARC 3 Sound Arc is the first to apply Dolby sound effects and head tracking technology to open true wireless headphones worldwide. Dolby sound technology creates immersive surround sound effects for users, bringing every sound detail in music, movies, and games to life. And head tracking technology further enhances this immersion, keeping the direction of the sound source unchanged no matter how the head moves, bringing users a more realistic auditory experience.

At the same time, in order to further enhance the bass effect, Cleer Laboratory has independently developed DBE (Dynamic Bass Enhancement) technology, which can intelligently adjust the bass output to ensure a deep and powerful bass effect even in an open structure. Especially when watching movies or symphonies, clear and layered bass complements precise high notes, creating an amazing sense of musical space.

Even international piano master Lang Lang, who has extremely high requirements for sound quality, highly recognizes the master sound quality of Cleer ARC 3 arc. He once publicly stated, "The restoration of piano sound requires extremely high attention to detail. When Cleer presents piano sound, he accurately captures the tone hierarchy and presents a full three-dimensional effect, which can be called 'master sound quality' Lang Lang's evaluation not only reflects his appreciation for the Cleer ARC 3 sound quality, but also further confirms the outstanding performance of this earphone in terms of sound quality.

At the same time, the Cleer brand has resonated with Master Lang Lang's ultimate pursuit in music art, and has specially tailored the "Master Lang Lang Mixing Room" for him to create and tune music here. This mixing room is equipped with advanced audio equipment and technology, ensuring that Lang Lang can fully explore and create music in this space, while also being able to finely adjust and optimize the sound quality of Cleer products.

Behind every good sound quality, there is a heart that pursues the ultimate

Through Lang Lang's exploration of Cleer's independent acoustic laboratory and the technical disassembly of the master sound quality Cleer ARC 3 sound arc, we can easily find that advanced audio technology is an indispensable core element for achieving excellent sound quality. Whether it's the combination of Dolby sound effects and head tracking technology, the application of Qualcomm S5 flagship audio chip, or the independently developed DBE dynamic bass enhancement technology, each breakthrough in technology has contributed a key force to the improvement of sound quality.

But in addition to cutting-edge sound quality and black technology, behind good sound quality, there are countless experiments, calibrations, and optimizations, which are the ultimate pursuit of every detail. As a leader in the industry, Cleer's relentless efforts and continuous exploration have created numerous high-quality intelligent audio products for us, setting an example for the entire industry.

In the future, we look forward to seeing more brands like Cleer emerge that are dedicated to creating sound quality. In this digital and intelligent era, people's pursuit of music has never stopped, and the standards for good sound quality are becoming increasingly high. Only brands that truly understand and respect music, and are willing to invest resources and energy in polishing sound quality, can win the trust of consumers and market recognition.